Re: Walnut DQM-9 Caninets
Eric,
I wish you had said something a few months ago. I had a great pair sitting in the garage for over two years and I couldn't find anyone to take them. I finally threw them out. Sorry. I never thought of posting them to the group....my bad.
Barry
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Re: Walnut DQM-9 Caninets
No, but I could make them. I have a friend with a pair and he’d probably let me take measurements.?
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Any replacement for mids if I ever blow it? Guess just find a whole set and take out drivers and xo sell what not needed. I have 3 new woofers so it be mid ,tweeter and mid bass drivers I’d want one of each. Already have extra set of xo’s still fact yellow caps. Debating whether to recap as I did others since I have the caps just need to buy mills resisters ??
On Wed, Jun 10, 2020 at 4:20 PM richard adelberg via <richardadelberg= [email protected]> wrote: Having listen to and still do 3 pairs of Bozak symphonies which lack a real top end over 12k the dq10’s are much more open in voices and cymbal area and triangles. I never heard a sound out of piezo unless I run a Bink cd of tones and then only at 10khz if I recall. I even tried another set same thing, redid xo same thing. Nothing that I know of comes out unless I ran a wire from tweeter to it then it sings.. made it too bright. Only thing there’s no deep bass from dq10. Bach low pedal tones are gone before and after xo recap . Very little punch below 50-60hz according to Bink cd and dB meter. So I used two subs via lp1 driven by 200w carver amps and the bass is ok. The subs drivers are very stiff. When I want more I turn on a polk 12” 300 w sub. Then the floors and walls shake but that not the goal. The DQ subs add enough in the Bal for me..it helps Bal out the mid and top end to my ears . I can still hear to 16khz . The word bright is a relative term.? Redoing the xovers is a good move especially with the type and age of the original caps. Contrary to most who claim that the piezo was the culprit for the harsh ?fatiguing sound, ?I find the true villain to be the MB Quart tweeter, a cheap and poor design in my view. That being said I’m sure the Clarity caps improved overall detail and “clarity”(no pun intended) without sounding “bright”(DISTORTED). I’ve heard some bad digital and ?poorly designed SS amps that can also be incompatible with the DQ10. BTW, I replaced my blown stock tweets with Scanspeak 2010 ? “ and put a 12 ohm resistor in parallel to compensate for the impedance difference.? I also agree with Samuel about leaving well enough alone in replacing the stock MB Quart dome mid which is the “heart” of the speaker IMHO. ? From: [email protected] [mailto:[email protected]] On Behalf Of richard adelberg
Sent: Wednesday, June 10, 2020 3:25 PM
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers ? Gosh guys aren’t they brighten up with stock mid range and tweeters. I redid the crossovers with clarity kept in order to calm him down a bit. I think the last thing we want to do is add any more brightness to the meeting or high end of the speakers the only thing I’ve really done other than change the crossover caps is at subwoofers If I ever blow one after 60 years I’d be more inclined to just go buy another set of the for $400 and have a bunch of extra spares ? The T27A variants are newer than the T27.? Maybe a model change alone...who knows??? ? Mine are 4OHM.
On Wednesday, June 10, 2020, 01:39:03 p.m. EDT, Brandon Singletary via <singletaryb=[email protected]> wrote:
I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via <robertkeegans=[email protected]> wrote:
> Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
>
>
>
> Sent from my T-Mobile 4G LTE Device
>
>
> -------- Original message --------
> From: GEORGE ABRAHAM <gabraham2785@...>
> Date: 6/9/20 11:36 PM (GMT-06:00)
> To: [email protected]
> Subject: Re: [DahlquistSpeakers] Crossovers
>
> The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
>
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> On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via <robertkeegans=[email protected]> wrote:
>
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>
>
>
> Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
>
>
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>
>
>??
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Does anybody have a pair of DQM9 cabinets that they might want to get rid of I do not need the drivers.?
Im in SoCal ?
thanks
Eric
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Having listen to and still do 3 pairs of Bozak symphonies which lack a real top end over 12k the dq10’s are much more open in voices and cymbal area and triangles. I never heard a sound out of piezo unless I run a Bink cd of tones and then only at 10khz if I recall. I even tried another set same thing, redid xo same thing. Nothing that I know of comes out unless I ran a wire from tweeter to it then it sings.. made it too bright. Only thing there’s no deep bass from dq10. Bach low pedal tones are gone before and after xo recap . Very little punch below 50-60hz according to Bink cd and dB meter. So I used two subs via lp1 driven by 200w carver amps and the bass is ok. The subs drivers are very stiff. When I want more I turn on a polk 12” 300 w sub. Then the floors and walls shake but that not the goal. The DQ subs add enough in the Bal for me..it helps Bal out the mid and top end to my ears . I can still hear to 16khz .
The word bright is a relative term.? Redoing the xovers is a good move especially with the type and age of the original caps. Contrary to most who claim that the piezo was the culprit for the harsh ?fatiguing sound, ?I find the true villain to be the MB Quart tweeter, a cheap and poor design in my view. That being said I’m sure the Clarity caps improved overall detail and “clarity”(no pun intended) without sounding “bright”(DISTORTED). I’ve heard some bad digital and ?poorly designed SS amps that can also be incompatible with the DQ10. BTW, I replaced my blown stock tweets with Scanspeak 2010 ? “ and put a 12 ohm resistor in parallel to compensate for the impedance difference.? I also agree with Samuel about leaving well enough alone in replacing the stock MB Quart dome mid which is the “heart” of the speaker IMHO. ? From: [email protected] [mailto:[email protected]] On Behalf Of richard adelberg
Sent: Wednesday, June 10, 2020 3:25 PM
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers ? Gosh guys aren’t they brighten up with stock mid range and tweeters. I redid the crossovers with clarity kept in order to calm him down a bit. I think the last thing we want to do is add any more brightness to the meeting or high end of the speakers the only thing I’ve really done other than change the crossover caps is at subwoofers If I ever blow one after 60 years I’d be more inclined to just go buy another set of the for $400 and have a bunch of extra spares ? The T27A variants are newer than the T27.? Maybe a model change alone...who knows??? ? Mine are 4OHM.
On Wednesday, June 10, 2020, 01:39:03 p.m. EDT, Brandon Singletary via <singletaryb=[email protected]> wrote:
I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via <robertkeegans=[email protected]> wrote:
> Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
>
>
>
> Sent from my T-Mobile 4G LTE Device
>
>
> -------- Original message --------
> From: GEORGE ABRAHAM <gabraham2785@...>
> Date: 6/9/20 11:36 PM (GMT-06:00)
> To: [email protected]
> Subject: Re: [DahlquistSpeakers] Crossovers
>
> The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
>
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>
>
> On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via <robertkeegans=[email protected]> wrote:
>
>
>
>
>
> Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
>
>
>
>
>
>??
>>
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The word bright is a relative term.? Redoing the xovers is a good move especially with the type and age of the original caps. Contrary to most who claim that the piezo was the culprit for the harsh ?fatiguing sound, ?I find the true villain to be the MB Quart tweeter, a cheap and poor design in my view. That being said I’m sure the Clarity caps improved overall detail and “clarity”(no pun intended) without sounding “bright”(DISTORTED). I’ve heard some bad digital and ?poorly designed SS amps that can also be incompatible with the DQ10. BTW, I replaced my blown stock tweets with Scanspeak 2010 ? “ and put a 12 ohm resistor in parallel to compensate for the impedance difference. ?I also agree with Samuel about leaving well enough alone in replacing the stock MB Quart dome mid which is the “heart” of the speaker IMHO. ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of richard adelberg
Sent: Wednesday, June 10, 2020 3:25 PM
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers ? Gosh guys aren’t they brighten up with stock mid range and tweeters. I redid the crossovers with clarity kept in order to calm him down a bit. I think the last thing we want to do is add any more brightness to the meeting or high end of the speakers the only thing I’ve really done other than change the crossover caps is at subwoofers If I ever blow one after 60 years I’d be more inclined to just go buy another set of the for $400 and have a bunch of extra spares ? The T27A variants are newer than the T27.? Maybe a model change alone...who knows??? ? Mine are 4OHM.
On Wednesday, June 10, 2020, 01:39:03 p.m. EDT, Brandon Singletary via <singletaryb=[email protected]> wrote:
I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via <robertkeegans=[email protected]> wrote:
> Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
>
>
>
> Sent from my T-Mobile 4G LTE Device
>
>
> -------- Original message --------
> From: GEORGE ABRAHAM <gabraham2785@...>
> Date: 6/9/20 11:36 PM (GMT-06:00)
> To: [email protected]
> Subject: Re: [DahlquistSpeakers] Crossovers
>
> The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
>
>
>
>
>
>
> On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via <robertkeegans=[email protected]> wrote:
>
>
>
>
>
> Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
>
>
>
>
>
>??
>>
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Gosh guys aren’t they brighten up with stock mid range and tweeters. I redid the crossovers with clarity kept in order to calm him down a bit. I think the last thing we want to do is add any more brightness to the meeting or high end of the speakers the only thing I’ve really done other than change the crossover caps is at subwoofers If I ever blow one after 60 years I’d be more inclined to just go buy another set of the for $400 and have a bunch of extra spares
The T27A variants are newer than the T27.? Maybe a model change alone...who knows??? ? Mine are 4OHM.
On Wednesday, June 10, 2020, 01:39:03 p.m. EDT, Brandon Singletary via <singletaryb=[email protected]> wrote:
I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via <robertkeegans=[email protected]> wrote:
> Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
>
>
>
> Sent from my T-Mobile 4G LTE Device
>
>
> -------- Original message --------
> From: GEORGE ABRAHAM <gabraham2785@...>
> Date: 6/9/20 11:36 PM (GMT-06:00)
> To: [email protected]
> Subject: Re: [DahlquistSpeakers] Crossovers
>
> The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
>
>
>
>
>
>
> On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via <robertkeegans=[email protected]> wrote:
>
>
>
>
>
> Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
>
>
>
>
>
>??
>>
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The oem Philips tweeter had a shroud I front of the dome to disperse the sound and reduce beaming.? That was nice.? Not in the KEF.
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On Wednesday, June 10, 2020, 01:57:42 p.m. EDT, Samuel Crider <dieseldude1@...> wrote: Yep MB Quart it is. Over the years I've tried several different types. To date I prefer the now old oem's to them all. The newer crop has been more efficient. But that causes issues and may require adding resistance in series. Whatever you choose if it has ferrofluid it must go. At which point you most likely will find they were hiding some issue with it. Dampened tweeters do not produce the tip top sparkle needed on the 10's. And beware as the KEF's will flame out way before the oem. DD On Wed, Jun 10, 2020, 12:39 PM Brandon Singletary via groups.io <singletaryb@...> wrote: ??I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via groups.io <robertkeegans@...> wrote:
Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: GEORGE ABRAHAM <gabraham2785@...>
Date: 6/9/20 11:36 PM (GMT-06:00)
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers
The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via groups.io <robertkeegans@...> wrote:
Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
??
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The T27A variants are newer than the T27.? Maybe a model change alone...who knows??? ? Mine are 4OHM.
toggle quoted message
Show quoted text
On Wednesday, June 10, 2020, 01:39:03 p.m. EDT, Brandon Singletary via groups.io <singletaryb@...> wrote: I have a set of KEF -?Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s?? On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via groups.io <robertkeegans@...> wrote: Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: GEORGE ABRAHAM <gabraham2785@...>
Date: 6/9/20 11:36 PM (GMT-06:00)
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers
The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via groups.io <robertkeegans@...> wrote:
Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
??
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Yep MB Quart it is. Over the years I've tried several different types. To date I prefer the now old oem's to them all. The newer crop has been more efficient. But that causes issues and may require adding resistance in series. Whatever you choose if it has ferrofluid it must go. At which point you most likely will find they were hiding some issue with it. Dampened tweeters do not produce the tip top sparkle needed on the 10's. And beware as the KEF's will flame out way before the oem.
DD
On Wed, Jun 10, 2020, 12:39 PM Brandon Singletary via <singletaryb= [email protected]> wrote:
I have a set of KEF -? Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via <robertkeegans=[email protected]> wrote: Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- Date: 6/9/20 11:36 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested. On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via <robertkeegans= [email protected]> wrote: Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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I have a set of KEF -? Audiodrive AD-T27R Tweeters. Any thoughts on using these over the T27A’s??
On Wednesday, June 10, 2020, 1:25 PM, Robert Keegan via groups.io <robertkeegans@...> wrote: Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- From: GEORGE ABRAHAM <gabraham2785@...> Date: 6/9/20 11:36 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested. On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via groups.io <robertkeegans@...> wrote: Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Blows away might even be an understatement lol. Btw, wasn't there a recent post about the factory tweeter and mid being mbquart?
Sent from my T-Mobile 4G LTE Device
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Show quoted text
-------- Original message -------- From: GEORGE ABRAHAM <gabraham2785@...> Date: 6/9/20 11:36 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested. On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via groups.io <robertkeegans@...> wrote: Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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The KEF T27A tweeter blows away the stock Philips.? And, since it goes over 20K, you can discard the Piezo super tweeter.? The previous owner also came up with a radical crossover network based on a design by Rabbid Audio of Kansas City.? I'll send photos if requested.
toggle quoted message
Show quoted text
On Tuesday, June 9, 2020, 02:24:07 p.m. EDT, Robert Keegan via groups.io <robertkeegans@...> wrote:
Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.
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Greetings from Ottawa....I highly recommend a Tube pre with a SS power amp. ? I am using a Yaqin pre into a pair of NAD 2200 that are bridged.? Amazing resolution and depth.? Highly recommended.? I have tried EL34 push pull Integrated Amps without success.? Tube amps are great for efficient speakers.? DQ10's are notoriously inefficient.
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And here's the schematic for one incredible sounding DQ. The t27 mounts to the back of the mid dome in place of the factory tweeter. I find this is done best by using the inner of two tweeter bolt holes, then the t27 rotated to be centered with the mid dome.?
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: "Robert Keegan via groups.io" <robertkeegans@...> Date: 6/9/20 9:38 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
Here's a quick drawing of the schematic. Tweeter will be 8 ohms normal polarity if the inductors are run this way. The addition I made myself was returning the factory inductor #5 into the mix. It helped a lot as a garbage collector for the mid dome feedback. I will draw that one up too in a bit.
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- From: Samuel Crider <dieseldude1@...> Date: 6/9/20 7:42 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
Hi John,
First off have you cleaned up the fuse holder and swapped the fuse? Try that as those do present issues. At a minimum polish everything with a good metal polish. Fuse included prior to pulling the tweeter. Better yet solider in solder tail fuses and loose the holders. I did so with .75 fast blows and have never blown one to date. And I run them hard. The supertweeters are about bulletproof. I've yet to encounter a bad one to date and contrary to most beliefs are useful.? If it was me I'd leave them as they currently are.?
Replacement tweeters are iffy. I'd try to find one employing the same size, materials, angles etc. And start from there. As domes sound different that polycarbonate, etc. Plus if the replacement is ferrofluid cooled. I'd remove as much of it as possible prior to installing.
Best, On Tue, Jun 9, 2020, 1:29 PM John Cumming < cumming@...> wrote: Hi, ? I missed something. ? What is this mod you are referring to? ? John ? ? Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Here's a quick drawing of the schematic. Tweeter will be 8 ohms normal polarity if the inductors are run this way. The addition I made myself was returning the factory inductor #5 into the mix. It helped a lot as a garbage collector for the mid dome feedback. I will draw that one up too in a bit.
Sent from my T-Mobile 4G LTE Device
toggle quoted message
Show quoted text
-------- Original message -------- From: Samuel Crider <dieseldude1@...> Date: 6/9/20 7:42 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
Hi John,
First off have you cleaned up the fuse holder and swapped the fuse? Try that as those do present issues. At a minimum polish everything with a good metal polish. Fuse included prior to pulling the tweeter. Better yet solider in solder tail fuses and loose the holders. I did so with .75 fast blows and have never blown one to date. And I run them hard. The supertweeters are about bulletproof. I've yet to encounter a bad one to date and contrary to most beliefs are useful.? If it was me I'd leave them as they currently are.?
Replacement tweeters are iffy. I'd try to find one employing the same size, materials, angles etc. And start from there. As domes sound different that polycarbonate, etc. Plus if the replacement is ferrofluid cooled. I'd remove as much of it as possible prior to installing.
Best, On Tue, Jun 9, 2020, 1:29 PM John Cumming < cumming@...> wrote: Hi, ? I missed something. ? What is this mod you are referring to? ? John ? ? Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Hi john, I was referring to one of the responses about using a t27 tweeter. You can just about remove everything on the board after cap 1, aside from the .8 and .2 inductors associated with the mid dome, then put a 2 microfarad capacitor in front of the t27 tweeter. I will add a picture of a schematic in a bit.
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: John Cumming <cumming@...> Date: 6/9/20 1:34 PM (GMT-06:00) Subject: Re: [DahlquistSpeakers] Crossovers
Hi, ? I missed something. ? What is this mod you are referring to? ? John ? ? Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Hi John,
First off have you cleaned up the fuse holder and swapped the fuse? Try that as those do present issues. At a minimum polish everything with a good metal polish. Fuse included prior to pulling the tweeter. Better yet solider in solder tail fuses and loose the holders. I did so with .75 fast blows and have never blown one to date. And I run them hard. The supertweeters are about bulletproof. I've yet to encounter a bad one to date and contrary to most beliefs are useful.? If it was me I'd leave them as they currently are.?
Replacement tweeters are iffy. I'd try to find one employing the same size, materials, angles etc. And start from there. As domes sound different that polycarbonate, etc. Plus if the replacement is ferrofluid cooled. I'd remove as much of it as possible prior to installing.
Best,
On Tue, Jun 9, 2020, 1:29 PM John Cumming < cumming@...> wrote: Hi, ? I missed something. ? What is this mod you are referring to? ? John ? ? Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Hi, ? I missed something. ? What is this mod you are referring to? ? John ?
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From: [email protected] <[email protected]> On Behalf Of Robert Keegan via groups.io
Sent: June 9, 2020 11:24 AM
To: [email protected]
Subject: Re: [DahlquistSpeakers] Crossovers? Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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Hi George, I too have a pair of these. Mine were done by Beatty Stereo in the 90's, and I am sold on what they've done. It is the perfect tweeter for the dq's. I did a few things to the crossover to make things better, and I just cant believe my ears. I highly recommend this mod.?
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