Today's Message Index:
----------------------
1. 04:55 AM - Re: I have a question regarding the crossover points in 4000x (Dremgragen .)
2. 08:57 AM - Re: I have a question regarding the crossover points (Scott Walters)
3. 12:30 PM - Re: I have a question regarding the crossover points in 4000x (Doug Dobson)
4. 12:55 PM - Re: I have a question regarding the crossover points in 4000x (David Kennedy)
5. 02:44 PM - Re: I have a question regarding the crossover points in 4000x (Pete)
6. 03:00 PM - Re: I have a question regarding the crossover points in 4000x (Doug Dobson)
Message 1
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| Subject: | Re: I have a question regarding the crossover points in |
4000x
--> XDP4000X-List message posted by: "Dremgragen ." <dremgragen@hotmail.com>
Of course you get less sound with both crossovers running!
Let's take a look at this for a moment. The whole purpose of a crossover it to
block frequencies @ X Hz down/up by Y dB slope. The lower you make X the less
frequencies will be played at full volume (in a low-pass setup, more for high
pass).... the higher you make Y the less you will be able to hear the frequencies
beyond the cutoff @ X Hz.
SO, if you cross over your frequencies by -72dB @ 78 Hz, then everything above
78Hz will be attenuated by -72dB per octave (that means -144 dB @ 156 Hz, -216
dB @ 312 Hz, etc). When you turn on that 4000X crossover, your sub no longer
plays those frequencies above the crossover point at full volume. It may still
play them, depending on volume, crossover frequencies, slopes, etc., but the
volume will be significantly less. You may not *THINK* you are hearing thingsbeyond
your crossover frequency cutoffon any speaker setup, but you better think
again, especially in those low-slope crossovers.
Many people think that they only want their sub to play ultra low, 20-60 Hz or
so... I used to think that way til I listened to some frequency-specific tones
and messed with my 4000x crossover a little. 30 Hz + is where the good stuff's
at. I could care less if my sub played any lower, I'd prefer it didn't since
those notes are just power-hungry bastards. You get a lot of good sound from
your sub @ 70 Hz... as high as 100 or 120, maybe even 150 Hz or more....
Thing is, most crossover slopes are around -12 dB per octave... so if your crossover
is @ 60 Hz, then the sound of a 70 Hz note is only -12 dB versus anything
60 Hz and lower that's played at full volume, so you'll still hear it, only
slightly attenuated.... but the reason we have to set this so low is to make those
notes about 120 Hz disappear from our subwoofer, as they reveal the location
of the subwoofer... well, with the 4000X you canplay around a little... I
think you'll find that the 78 Hz @ 72 -dB octave makes for a VERY quiet 120 Hz
note.. With the 4000X you don't have to butcher your frequency response (by going
so low with your crossover frequency) because the steep slope cuts off volumes
by as much as thatwhopping -72 dB.. that's a lotta volume.
So, in a nutshell, what I'm saying is that I don't think you really need your crossover
frequency so low, down there at 60 Hz... you just need to put that powerful
4000X crossover slope to use at the frequencies it gives you. Try it...
start with the -72 dB @ 78 Hz and turn off your amplifier's crossover. I'll bet
you will like what you hear after you listen for a little while. 60 Hz crossover
points are for people with wimpy -12/18 dB per octave slopes. :-)
My .02 (maybe .03 for so much babble)
-Brody Z
From: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
Subject: XDP4000X-List: I have a question regarding the crossover points in 4000x
-- XDP4000X-List message posted by: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
Ok, here it is. Basically the 4000x is great; however, it is discouraging
that there are so few crossover points to select from, though the different
slopes are nice. Anyway, I have been playing around with different settings
and I noticed something interesting. With the set up I have, I need a sub
bass crossover point at around 50-65 hrtz, which the 4000x does not have.
So what I did was leave the sub bass point at 78 hrtz and down (or,
theoretically I could have turned in on full range), and then on my JL amp I
turned on my crossover and placed it at 62 and down. What threw me for a
loop was that I expected the bass to sound the same whether the 4000x
crossover is on or not, but this is not true. When I turned it off, the
bass actually increased. SO i thought I would check the crossover on the
amp itself, but it works fine too. My question then is does 4000x work the
same with multiple crossovers, I don't know why not. I would think that
whatever signal the 4000x equalizes, time alignes, and crosses over would
then be sent to the amp. From there, I would think that the amp would do
any additional adjustments (such as additional cross over settings or level
adjustments. My sub bass actually increased when i tuned on the fullrange
setting on my 4000x. I thought I would check to see if this is true since
the amp is the final determiner of the crossover point? Any replies would
be great. It is dissapointing also to hear the xdp-4000x program that was
being worked on, is on hold. I wish I had the brain power to program such a
beast. Please reply.
Patrick Freeland
Patrick Freeland
Protect your PC - <a href="http://g.msn.com/8HMAEN/2024">Click here for McAfee.com
VirusScan Online
Message 2
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| Subject: | Re: I have a question regarding the crossover points |
in 4000x
--> XDP4000X-List message posted by: Scott Walters <scott@packetpushers.com>
I agree with Brody.
You stated you had 'more bass' when only using the JL crossover. Do you
know the slope of the JL crossover? As Brody pointed out, you might be
getting 'more bass' from just the JL because the slope is not as steep
as the 4000. Have you tried the 4000 at 78 with slopes other than 72?
I'm amazed if you have a system whose front speakers can go down to 60Hz.
My big question is, what sounds better out of the two you have tried?
I have my 4000 set to 98Hz/72db for the sub.
On Wed, 8 Jan 2003, Dremgragen . wrote:
> --> XDP4000X-List message posted by: "Dremgragen ." <dremgragen@hotmail.com>
>
>
> Of course you get less sound with both crossovers running!
>
>
> Let's take a look at this for a moment. The whole purpose of a crossover it to
block frequencies @ X Hz down/up by Y dB slope. The lower you make X the less
frequencies will be played at full volume (in a low-pass setup, more for high
pass).... the higher you make Y the less you will be able to hear the frequencies
beyond the cutoff @ X Hz.
>
>
> SO, if you cross over your frequencies by -72dB @ 78 Hz, then everything above
78Hz will be attenuated by -72dB per octave (that means -144 dB @ 156 Hz, -216
dB @ 312 Hz, etc). When you turn on that 4000X crossover, your sub no longer
plays those frequencies above the crossover point at full volume. It may still
play them, depending on volume, crossover frequencies, slopes, etc., but the
volume will be significantly less. You may not *THINK* you are hearing thingsbeyond
your crossover frequency cutoffon any speaker setup, but you better think
again, especially in those low-slope crossovers.
>
>
> Many people think that they only want their sub to play ultra low, 20-60 Hz or
so... I used to think that way til I listened to some frequency-specific tones
and messed with my 4000x crossover a little. 30 Hz + is where the good stuff's
at. I could care less if my sub played any lower, I'd prefer it didn't since
those notes are just power-hungry bastards. You get a lot of good sound from
your sub @ 70 Hz... as high as 100 or 120, maybe even 150 Hz or more....
>
>
> Thing is, most crossover slopes are around -12 dB per octave... so if your crossover
is @ 60 Hz, then the sound of a 70 Hz note is only -12 dB versus anything
60 Hz and lower that's played at full volume, so you'll still hear it, only
slightly attenuated.... but the reason we have to set this so low is to make
those notes about 120 Hz disappear from our subwoofer, as they reveal the location
of the subwoofer... well, with the 4000X you canplay around a little...
I think you'll find that the 78 Hz @ 72 -dB octave makes for a VERY quiet 120
Hz note.. With the 4000X you don't have to butcher your frequency response (by
going so low with your crossover frequency) because the steep slope cuts off
volumes by as much as thatwhopping -72 dB.. that's a lotta volume.
>
>
> So, in a nutshell, what I'm saying is that I don't think you really need your
crossover frequency so low, down there at 60 Hz... you just need to put that
powerful 4000X crossover slope to use at the frequencies it gives you. Try it...
start with the -72 dB @ 78 Hz and turn off your amplifier's crossover. I'll
bet you will like what you hear after you listen for a little while. 60 Hz crossover
points are for people with wimpy -12/18 dB per octave slopes. :-)
>
>
> My .02 (maybe .03 for so much babble)
> -Brody Z
>
>
> From: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
> To: xdp4000x-list@matronics.com
> Subject: XDP4000X-List: I have a question regarding the crossover points in 4000x
> Date: Tue, 07 Jan 2003 18:33:42 -0500
>
> -- XDP4000X-List message posted by: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
>
> Ok, here it is. Basically the 4000x is great; however, it is discouraging
> that there are so few crossover points to select from, though the different
> slopes are nice. Anyway, I have been playing around with different settings
> and I noticed something interesting. With the set up I have, I need a sub
> bass crossover point at around 50-65 hrtz, which the 4000x does not have.
> So what I did was leave the sub bass point at 78 hrtz and down (or,
> theoretically I could have turned in on full range), and then on my JL amp I
> turned on my crossover and placed it at 62 and down. What threw me for a
> loop was that I expected the bass to sound the same whether the 4000x
> crossover is on or not, but this is not true. When I turned it off, the
> bass actually increased. SO i thought I would check the crossover on the
> amp itself, but it works fine too. My question then is does 4000x work the
> same with multiple crossovers, I don't know why not. I would think that
> whatever signal the 4000x equalizes, time alignes, and crosses over would
> then be sent to the amp. From there, I would think that the amp would do
> any additional adjustments (such as additional cross over settings or level
> adjustments. My sub bass actually increased when i tuned on the fullrange
> setting on my 4000x. I thought I would check to see if this is true since
> the amp is the final determiner of the crossover point? Any replies would
> be great. It is dissapointing also to hear the xdp-4000x program that was
> being worked on, is on hold. I wish I had the brain power to program such a
> beast. Please reply.
> Patrick Freeland
>
>
> Patrick Freeland
>
>
> Protect your PC - <a href="http://g.msn.com/8HMAEN/2024">Click here for McAfee.com
VirusScan Online
>
>
--
Scott Walters
-PacketPusher
Message 3
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| Subject: | Re: I have a question regarding the crossover points in |
4000x
--> XDP4000X-List message posted by: "Doug Dobson" <dougdobson@chartermi.net>
Not so sure why you are amazed at a front stage that will play down to 60
Hz. When using conventional crossovers I often run fronts that low and
lower. And I'm not talking about cars with 8" mids either, normal 6.5" or
5.25" drivers in a good kickpanel can easily do this, and without sonic
artifacts. The crossover is pretty flexible considering the slopes when you
compare them to typical analog units. The higher end of the crossover, to
me, is more of a problem.
Doug Dobson
----- Original Message -----
From: "Scott Walters" <scott@packetpushers.com>
Subject: Re: XDP4000X-List: I have a question regarding the crossover points
in 4000x
> --> XDP4000X-List message posted by: Scott Walters
<scott@packetpushers.com>
>
>
> I agree with Brody.
>
> You stated you had 'more bass' when only using the JL crossover. Do you
> know the slope of the JL crossover? As Brody pointed out, you might be
> getting 'more bass' from just the JL because the slope is not as steep
> as the 4000. Have you tried the 4000 at 78 with slopes other than 72?
>
> I'm amazed if you have a system whose front speakers can go down to 60Hz.
>
> My big question is, what sounds better out of the two you have tried?
>
> I have my 4000 set to 98Hz/72db for the sub.
>
>
> On Wed, 8 Jan 2003, Dremgragen . wrote:
>
> > --> XDP4000X-List message posted by: "Dremgragen ."
<dremgragen@hotmail.com>
> >
> >
> > Of course you get less sound with both crossovers running!
> >
> >
> > Let's take a look at this for a moment. The whole purpose of a crossover
it to block frequencies @ X Hz down/up by Y dB slope. The lower you make X
the less frequencies will be played at full volume (in a low-pass setup,
more for high pass).... the higher you make Y the less you will be able to
hear the frequencies beyond the cutoff @ X Hz.
> >
> >
> > SO, if you cross over your frequencies by -72dB @ 78 Hz, then everything
above 78Hz will be attenuated by -72dB per octave (that means -144 dB @ 156
Hz, -216 dB @ 312 Hz, etc). When you turn on that 4000X crossover, your sub
no longer plays those frequencies above the crossover point at full volume.
It may still play them, depending on volume, crossover frequencies, slopes,
etc., but the volume will be significantly less. You may not *THINK* you are
hearing thingsbeyond your crossover frequency cutoffon any speaker setup,
but you better think again, especially in those low-slope crossovers.
> >
> >
> > Many people think that they only want their sub to play ultra low, 20-60
Hz or so... I used to think that way til I listened to some
frequency-specific tones and messed with my 4000x crossover a little. 30 Hz
+ is where the good stuff's at. I could care less if my sub played any
lower, I'd prefer it didn't since those notes are just power-hungry
bastards. You get a lot of good sound from your sub @ 70 Hz... as high as
100 or 120, maybe even 150 Hz or more....
> >
> >
> > Thing is, most crossover slopes are around -12 dB per octave... so if
your crossover is @ 60 Hz, then the sound of a 70 Hz note is only -12 dB
versus anything 60 Hz and lower that's played at full volume, so you'll
still hear it, only slightly attenuated.... but the reason we have to set
this so low is to make those notes about 120 Hz disappear from our
subwoofer, as they reveal the location of the subwoofer... well, with the
4000X you canplay around a little... I think you'll find that the 78 Hz @
72 -dB octave makes for a VERY quiet 120 Hz note.. With the 4000X you don't
have to butcher your frequency response (by going so low with your crossover
frequency) because the steep slope cuts off volumes by as much as
thatwhopping -72 dB.. that's a lotta volume.
> >
> >
> > So, in a nutshell, what I'm saying is that I don't think you really need
your crossover frequency so low, down there at 60 Hz... you just need to put
that powerful 4000X crossover slope to use at the frequencies it gives you.
Try it... start with the -72 dB @ 78 Hz and turn off your amplifier's
crossover. I'll bet you will like what you hear after you listen for a
little while. 60 Hz crossover points are for people with wimpy -12/18 dB per
octave slopes. :-)
> >
> >
> > My .02 (maybe .03 for so much babble)
> > -Brody Z
> >
> >
> > From: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
> > To: xdp4000x-list@matronics.com
> > Subject: XDP4000X-List: I have a question regarding the crossover points
in 4000x
> > Date: Tue, 07 Jan 2003 18:33:42 -0500
> >
> > -- XDP4000X-List message posted by: "Patrick Freeland"
<ULTRA_19@HOTMAIL.COM>
> >
> > Ok, here it is. Basically the 4000x is great; however, it is
discouraging
> > that there are so few crossover points to select from, though the
different
> > slopes are nice. Anyway, I have been playing around with different
settings
> > and I noticed something interesting. With the set up I have, I need a
sub
> > bass crossover point at around 50-65 hrtz, which the 4000x does not
have.
> > So what I did was leave the sub bass point at 78 hrtz and down (or,
> > theoretically I could have turned in on full range), and then on my JL
amp I
> > turned on my crossover and placed it at 62 and down. What threw me for a
> > loop was that I expected the bass to sound the same whether the 4000x
> > crossover is on or not, but this is not true. When I turned it off, the
> > bass actually increased. SO i thought I would check the crossover on the
> > amp itself, but it works fine too. My question then is does 4000x work
the
> > same with multiple crossovers, I don't know why not. I would think that
> > whatever signal the 4000x equalizes, time alignes, and crosses over
would
> > then be sent to the amp. From there, I would think that the amp would do
> > any additional adjustments (such as additional cross over settings or
level
> > adjustments. My sub bass actually increased when i tuned on the
fullrange
> > setting on my 4000x. I thought I would check to see if this is true
since
> > the amp is the final determiner of the crossover point? Any replies
would
> > be great. It is dissapointing also to hear the xdp-4000x program that
was
> > being worked on, is on hold. I wish I had the brain power to program
such a
> > beast. Please reply.
> > Patrick Freeland
> >
> >
> > Patrick Freeland
> >
> >
> > Protect your PC - <a href="http://g.msn.com/8HMAEN/2024">Click here for
McAfee.com VirusScan Online
> >
> >
>
> --
> Scott Walters
> -PacketPusher
>
>
Message 4
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| Subject: | Re: I have a question regarding the crossover points in |
4000x
--> XDP4000X-List message posted by: "David Kennedy" <dkenned1@hotmail.com>
Although you can set the xover point lower with a different external
crossover, you shouldn't need to play your front speakers that low. Simply
delay the front speakers to align with the subwoofer. For instance put the
front speakers at 120 inches and keep the sub at 0. play with the setting
until the sub blends in with the mids. Keep in mind that due to
reflections, the rear of the car (esp. in a hatchback) can act as a large
horn, and even though you measure 4' from the woofer to your ear, the
reflections can delay the sound further.
Keeping the xover at 99hz shouldn't be a problem because the subwoofer is
going to fill in that hole. Assuming you did a good job of strengthening
your cabinet & eliminating rattles this should be the solution. If you
continue to have a dip at 90hz or so, increase the eq for that range. Once
you have the time alignment right you should hear bass coming from the front
of the car.
I am also not happy with the avail. xover points & slopes but until someone
else makes a unit with the same size that does what the xdp does I'm stuck
with it.
>From: "Doug Dobson" <dougdobson@chartermi.net>
>Reply-To: xdp4000x-list@matronics.com
>To: <xdp4000x-list@matronics.com>
>Subject: Re: XDP4000X-List: I have a question regarding the crossover
>points in 4000x
>Date: Wed, 8 Jan 2003 15:28:20 -0500
>
>--> XDP4000X-List message posted by: "Doug Dobson"
><dougdobson@chartermi.net>
>
>Not so sure why you are amazed at a front stage that will play down to 60
>Hz. When using conventional crossovers I often run fronts that low and
>lower. And I'm not talking about cars with 8" mids either, normal 6.5" or
>5.25" drivers in a good kickpanel can easily do this, and without sonic
>artifacts. The crossover is pretty flexible considering the slopes when
>you
>compare them to typical analog units. The higher end of the crossover, to
>me, is more of a problem.
>
>Doug Dobson
>
>
>----- Original Message -----
>From: "Scott Walters" <scott@packetpushers.com>
>To: <xdp4000x-list@matronics.com>
>Subject: Re: XDP4000X-List: I have a question regarding the crossover
>points
>in 4000x
>
>
> > --> XDP4000X-List message posted by: Scott Walters
><scott@packetpushers.com>
> >
> >
> > I agree with Brody.
> >
> > You stated you had 'more bass' when only using the JL crossover. Do you
> > know the slope of the JL crossover? As Brody pointed out, you might be
> > getting 'more bass' from just the JL because the slope is not as steep
> > as the 4000. Have you tried the 4000 at 78 with slopes other than 72?
> >
> > I'm amazed if you have a system whose front speakers can go down to
>60Hz.
> >
> > My big question is, what sounds better out of the two you have tried?
> >
> > I have my 4000 set to 98Hz/72db for the sub.
> >
> >
> > On Wed, 8 Jan 2003, Dremgragen . wrote:
> >
> > > --> XDP4000X-List message posted by: "Dremgragen ."
><dremgragen@hotmail.com>
> > >
> > >
> > > Of course you get less sound with both crossovers running!
> > >
> > >
> > > Let's take a look at this for a moment. The whole purpose of a
>crossover
>it to block frequencies @ X Hz down/up by Y dB slope. The lower you make X
>the less frequencies will be played at full volume (in a low-pass setup,
>more for high pass).... the higher you make Y the less you will be able to
>hear the frequencies beyond the cutoff @ X Hz.
> > >
> > >
> > > SO, if you cross over your frequencies by -72dB @ 78 Hz, then
>everything
>above 78Hz will be attenuated by -72dB per octave (that means -144 dB @ 156
>Hz, -216 dB @ 312 Hz, etc). When you turn on that 4000X crossover, your sub
>no longer plays those frequencies above the crossover point at full volume.
>It may still play them, depending on volume, crossover frequencies, slopes,
>etc., but the volume will be significantly less. You may not *THINK* you
>are
>hearing thingsbeyond your crossover frequency cutoffon any speaker setup,
>but you better think again, especially in those low-slope crossovers.
> > >
> > >
> > > Many people think that they only want their sub to play ultra low,
>20-60
>Hz or so... I used to think that way til I listened to some
>frequency-specific tones and messed with my 4000x crossover a little. 30 Hz
>+ is where the good stuff's at. I could care less if my sub played any
>lower, I'd prefer it didn't since those notes are just power-hungry
>bastards. You get a lot of good sound from your sub @ 70 Hz... as high as
>100 or 120, maybe even 150 Hz or more....
> > >
> > >
> > > Thing is, most crossover slopes are around -12 dB per octave... so if
>your crossover is @ 60 Hz, then the sound of a 70 Hz note is only -12 dB
>versus anything 60 Hz and lower that's played at full volume, so you'll
>still hear it, only slightly attenuated.... but the reason we have to set
>this so low is to make those notes about 120 Hz disappear from our
>subwoofer, as they reveal the location of the subwoofer... well, with the
>4000X you canplay around a little... I think you'll find that the 78 Hz @
>72 -dB octave makes for a VERY quiet 120 Hz note.. With the 4000X you don't
>have to butcher your frequency response (by going so low with your
>crossover
>frequency) because the steep slope cuts off volumes by as much as
>thatwhopping -72 dB.. that's a lotta volume.
> > >
> > >
> > > So, in a nutshell, what I'm saying is that I don't think you really
>need
>your crossover frequency so low, down there at 60 Hz... you just need to
>put
>that powerful 4000X crossover slope to use at the frequencies it gives you.
>Try it... start with the -72 dB @ 78 Hz and turn off your amplifier's
>crossover. I'll bet you will like what you hear after you listen for a
>little while. 60 Hz crossover points are for people with wimpy -12/18 dB
>per
>octave slopes. :-)
> > >
> > >
> > > My .02 (maybe .03 for so much babble)
> > > -Brody Z
> > >
> > >
> > > From: "Patrick Freeland" <ULTRA_19@HOTMAIL.COM>
> > > To: xdp4000x-list@matronics.com
> > > Subject: XDP4000X-List: I have a question regarding the crossover
>points
>in 4000x
> > > Date: Tue, 07 Jan 2003 18:33:42 -0500
> > >
> > > -- XDP4000X-List message posted by: "Patrick Freeland"
><ULTRA_19@HOTMAIL.COM>
> > >
> > > Ok, here it is. Basically the 4000x is great; however, it is
>discouraging
> > > that there are so few crossover points to select from, though the
>different
> > > slopes are nice. Anyway, I have been playing around with different
>settings
> > > and I noticed something interesting. With the set up I have, I need a
>sub
> > > bass crossover point at around 50-65 hrtz, which the 4000x does not
>have.
> > > So what I did was leave the sub bass point at 78 hrtz and down (or,
> > > theoretically I could have turned in on full range), and then on my JL
>amp I
> > > turned on my crossover and placed it at 62 and down. What threw me for
>a
> > > loop was that I expected the bass to sound the same whether the 4000x
> > > crossover is on or not, but this is not true. When I turned it off,
>the
> > > bass actually increased. SO i thought I would check the crossover on
>the
> > > amp itself, but it works fine too. My question then is does 4000x work
>the
> > > same with multiple crossovers, I don't know why not. I would think
>that
> > > whatever signal the 4000x equalizes, time alignes, and crosses over
>would
> > > then be sent to the amp. From there, I would think that the amp would
>do
> > > any additional adjustments (such as additional cross over settings or
>level
> > > adjustments. My sub bass actually increased when i tuned on the
>fullrange
> > > setting on my 4000x. I thought I would check to see if this is true
>since
> > > the amp is the final determiner of the crossover point? Any replies
>would
> > > be great. It is dissapointing also to hear the xdp-4000x program that
>was
> > > being worked on, is on hold. I wish I had the brain power to program
>such a
> > > beast. Please reply.
> > > Patrick Freeland
> > >
> > >
> > > Patrick Freeland
> > >
> > >
> > > Protect your PC - <a href="http://g.msn.com/8HMAEN/2024">Click here
>for
>McAfee.com VirusScan Online
> > >
> > >
> >
> > --
> > Scott Walters
> > -PacketPusher
> >
> >
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Message 5
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| Subject: | I have a question regarding the crossover points in |
4000x
--> XDP4000X-List message posted by: "Pete" <dabrow@orange.net>
Hello,
I think the majority of people that have an xdp-4000x know the limiting
factor is the crossover points. It will work better for a 3 way than a 2
way. All it requires are crossover points for the tweeters at 2.0, 2.5,
3.0 and 3.5 (KHz). Hopefully the Matronics 4k control software will be
able to do this.
Brody hit the nail on the head in regards to your bass issue. The highs
on the crossover are the problem for the majority as Doug said.
I received my XDP4K last week and only today have I obtained the serial
cable to control it. My components require a crossover point at 2.5KHz.
The crossover for the components rolls off at 12db/octave. These
speakers (KEF KARS) do not match the XDP well at all. These play down to
40Hz not that will be letting them go quite that low.
I would be interested to know other peoples successful 2 way front
setups that they use with the XDP. If you were to buy a set of new
drivers what would you choose if you were working exclusively with the
XDP4K?
I have read through the archives (I think from the beginning) and would
be interested to know peoples opinions of the DAC's in the XDP4K
compared with that of the C90. I read in some post that they are the
same yet I read another that says otherwise. Could someone for the
record state which DAC the XDP4K uses and how many DACs it has? Are they
independent left and right channel?
I would imagine some people prefer the sound of the c90 yet the xdp
makes up the difference with the time alignment and eq. Or would you say
the DAC in the xdp is superior?
I know that some of the top end Naim Audio cd players (home audio) use
dual burr brown DACs - maybe a sign of the quality.
Any thoughts
Pete
Message 6
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| Subject: | Re: I have a question regarding the crossover points in |
4000x
--> XDP4000X-List message posted by: "Doug Dobson" <dougdobson@chartermi.net>
The 4000 has better DACs in most people's opinions than the C-90, which was
a downgrade from the C-910. Can any of us hear the difference? Nope,
probably not.
As far as speakers to use with the 4000 Use whatever you like the sound
of. It will work , it just takes more time than any of us would like. I
tend to use Diamond Audio, Focal Utopia, and Image Dynamics horns. Three
completely different animals, yet they all sound extremely good with some
work. The different slopes really save the piece.
Doug Dobson
----- Original Message -----
From: "Pete" <dabrow@orange.net>
Subject: RE: XDP4000X-List: I have a question regarding the crossover points
in 4000x
> --> XDP4000X-List message posted by: "Pete" <dabrow@orange.net>
>
> Hello,
>
> I think the majority of people that have an xdp-4000x know the limiting
> factor is the crossover points. It will work better for a 3 way than a 2
> way. All it requires are crossover points for the tweeters at 2.0, 2.5,
> 3.0 and 3.5 (KHz). Hopefully the Matronics 4k control software will be
> able to do this.
>
> Brody hit the nail on the head in regards to your bass issue. The highs
> on the crossover are the problem for the majority as Doug said.
>
> I received my XDP4K last week and only today have I obtained the serial
> cable to control it. My components require a crossover point at 2.5KHz.
> The crossover for the components rolls off at 12db/octave. These
> speakers (KEF KARS) do not match the XDP well at all. These play down to
> 40Hz not that will be letting them go quite that low.
>
> I would be interested to know other peoples successful 2 way front
> setups that they use with the XDP. If you were to buy a set of new
> drivers what would you choose if you were working exclusively with the
> XDP4K?
>
> I have read through the archives (I think from the beginning) and would
> be interested to know peoples opinions of the DAC's in the XDP4K
> compared with that of the C90. I read in some post that they are the
> same yet I read another that says otherwise. Could someone for the
> record state which DAC the XDP4K uses and how many DACs it has? Are they
> independent left and right channel?
>
> I would imagine some people prefer the sound of the c90 yet the xdp
> makes up the difference with the time alignment and eq. Or would you say
> the DAC in the xdp is superior?
>
> I know that some of the top end Naim Audio cd players (home audio) use
> dual burr brown DACs - maybe a sign of the quality.
>
> Any thoughts
>
> Pete
>
>
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