Interesting article with former Dahlquist engineer
Carl Marchisotto, currently of NOLA speakers, speaks briefly about his time at Dahlquist in this article.?
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Hi John: Greatly appreciated work... Thanks. Best, Eric Beckenstein, Connecticut
On Wed, Jul 22, 2020 at 9:55 AM John van Son < jpvanson@...> wrote: Hello all,
With requests for specs for various Dahlquist models as of late, I thought it might be worth taking advantage of the Wiki feature of this group to create a knowledge base of specifications and similar. To that effect, I've gone through my files and provided some of the basics I had handy for the models and variants that I'm aware of as well as the Canadian Dahlquist offerings as those can be a bit hard to find.
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You may find the newly created group wiki here:?/g/DahlquistSpeakers/wiki/Home
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My apologies for the poor formatting, the editor isn't the most user friendly especially with tables.
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All the information I've posted comes from company literature, equipment directories, reviews and, in some cases, examples on hand where driver part numbers could be directly obtained. There are definitely some typos and I guarantee some information is incorrect (equipment directories and bluebooks are notoriously awful when it comes to accuracy with specifications, years manufactured, etc), but it's the best I can do currently unless I run across more and better info in my files somewhere.
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Feel free to add to it, but please do make sure the information is as correct as you can make it. That means from contemporaneous literature and/or examples in hand. Internet facts and retold knowledge, unfortunately, have a habit of being warped in the retelling or mishearing and there are too many places online as it is with the bad karma of being full of rectally sourced misinformation. Variations in a production run only serve to confuse things further. So, please bear such in mind before changing things and consider adding something as a revision or variant instead of editing if a disparity comes up. Anyways...
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Hope this will prove to be a useful source of information in the future.
Regards,
- John
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Thanks for taking the time and energy to start this database. It should prove to be very useful.
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Hello all,
With requests for specs for various Dahlquist models as of late, I thought it might be worth taking advantage of the Wiki feature of this group to create a knowledge base of specifications and similar. To that effect, I've gone through my files and provided some of the basics I had handy for the models and variants that I'm aware of as well as the Canadian Dahlquist offerings as those can be a bit hard to find.
?
You may find the newly created group wiki here:?/g/DahlquistSpeakers/wiki/Home
?
My apologies for the poor formatting, the editor isn't the most user friendly especially with tables.
?
All the information I've posted comes from company literature, equipment directories, reviews and, in some cases, examples on hand where driver part numbers could be directly obtained. There are definitely some typos and I guarantee some information is incorrect (equipment directories and bluebooks are notoriously awful when it comes to accuracy with specifications, years manufactured, etc), but it's the best I can do currently unless I run across more and better info in my files somewhere.
?
Feel free to add to it, but please do make sure the information is as correct as you can make it. That means from contemporaneous literature and/or examples in hand. Internet facts and retold knowledge, unfortunately, have a habit of being warped in the retelling or mishearing and there are too many places online as it is with the bad karma of being full of misinformation. Variations in a production run only serve to confuse things further. So, please bear such in mind before changing things and consider adding something as a revision or variant instead of editing if a disparity comes up. Anyways...
?
Hope this will prove to be a useful source of information in the future.
Regards,
- John
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Thank you for sending the spec sheet.? For those who didn't open the attachment,
the recommended frequency range of the driver in the DQ-1W is 25 - 1000 hz.
I got the bug to upgrade my speakers, unable to pull the trigger on anything because
the DQ-10 & DQ-1W combination is so good that I might be disappointed with new
expensive speakers.
On 07/20/2020 6:36 AM w e <sky27709@...> wrote:
Attached are the spec sheets for the Original SEAS driver
On Sun, Jul 19, 2020 at 5:43 PM Durs Koenig <
durs@...> wrote:
Hello,
Anyone know the frequency specs of the DQ-1W?
Any consensus if the DQ-20's are better than the DQ-10's?
Thank you.
Durs Koenig
Forestville, CA
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Attached are the spec sheets for the Original SEAS driver
On Sun, Jul 19, 2020 at 5:43 PM Durs Koenig < durs@...> wrote:
Hello,
Anyone know the frequency specs of the DQ-1W?
Any consensus if the DQ-20's are better than the DQ-10's?
Thank you.
Durs Koenig
Forestville, CA
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Well done Sherman.? Thank you for your well written thoughts.
I know it is tough to describe sound-stages.? Glad to hear your
comments about the DQ-20.?
Durs
On 07/19/2020 5:22 PM Sherman Goldman via groups.io <qstieee@...> wrote:
re: Second question
I have the DQ-20 (not the i suffix), and DQ-10 (earlier serial number). Am listening to an LP on the DQ-20 now actually. It is a tough question, which is why I still have both. I am going to invent some terms here. The DQ-10, with five drivers spread on two axes, creates more distinct points of sound at each speaker. I can hear flute there and drums in a different spot (I mostly do classical). My kids, who played different string instruments, and therefore sat in many high end high-school orchestra sessions, say the sound of the DQ-20 (one axis of drivers) seems more realistic. So the DQ-10 has more "local sound stage" and the DQ-20 makes a more accurate sound and has better "between the speakers" sound stage. I don't know if this helps - I don't have a "golden ear".so I can't give you a critical music reviewer essay. I do like my classical and jazz, and have an electronics background, I should also say percussion seems "tighter" on the 20, more realistic drum kicks. Of course, the 20 is newer, so I may be hearing component age and not original differences.
Both of these impressions are with the same system: Technics SL-1200mk2 with Ortofon Concorde with stylus 30 (A KAB special), Dolan PM-1 feeding a Parasound HCA-2200ii. I have heard rumors on forums about who designed each and when Jon Dahlquist was around, but no facts.
-----Original Message-----
From: Durs Koenig <durs@...>
To: [email protected] < [email protected]>
Sent: Sun, Jul 19, 2020 5:43 pm
Subject: [DahlquistSpeakers] Two questions
Hello,
Anyone know the frequency specs of the DQ-1W?
Any consensus if the DQ-20's are better than the DQ-10's?
Thank you.
Durs Koenig
Forestville, CA
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re: Second question
I have the DQ-20 (not the i suffix), and DQ-10 (earlier serial number). Am listening to an LP on the DQ-20 now actually. It is a tough question, which is why I still have both. I am going to invent some terms here. The DQ-10, with five drivers spread on two axes, creates more distinct points of sound at each speaker. I can hear flute there and drums in a different spot (I mostly do classical). My kids, who played different string instruments, and therefore sat in many high end high-school orchestra sessions, say the sound of the DQ-20 (one axis of drivers) seems more realistic. So the DQ-10 has more "local sound stage" and the DQ-20 makes a more accurate sound and has better "between the speakers" sound stage. I don't know if this helps - I don't have a "golden ear".so I can't give you a critical music reviewer essay. I do like my classical and jazz, and have an electronics background, I should also say percussion seems "tighter" on the 20, more realistic drum kicks. Of course, the 20 is newer, so I may be hearing component age and not original differences.
Both of these impressions are with the same system: Technics SL-1200mk2 with Ortofon Concorde with stylus 30 (A KAB special), Dolan PM-1 feeding a Parasound HCA-2200ii. I have heard rumors on forums about who designed each and when Jon Dahlquist was around, but no facts.
-----Original Message----- From: Durs Koenig <durs@...> To: [email protected] < [email protected]> Sent: Sun, Jul 19, 2020 5:43 pm Subject: [DahlquistSpeakers] Two questions
Hello,
Anyone know the frequency specs of the DQ-1W?
Any consensus if the DQ-20's are better than the DQ-10's?
Thank you.
Durs Koenig
Forestville, CA
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Bruce,
I love your set-up.? I saved the image, it brought a smile to my face.? Wish I was there.
Thanks Bruce, good info on the sounds.
Durs
On 07/19/2020 4:21 PM bruce.colson <onangenman@...> wrote:
Durs, the DQ-1 passive crossover is set for 80 or 60 Hz and I have both the DQ-10¡¯s and the DQ-20i¡¯s, the 10¡¯s are more dynamic but the 20¡¯s are a sweeter sound, more crisp and pronounced. That is how I see it and love them both.
On Jul 19, 2020, at 6:14 PM, Andy Heckl <andyheckl@...> wrote:
[Edited Message Follows]
Durs,
The DQ-1W specifications are in the attached flyer.?
<hfe_dahlquist_dq-lp1_flyer_en 2.pdf>
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Durs, the DQ-1 passive crossover is set for 80 or 60 Hz and I have both the DQ-10¡¯s and the DQ-20i¡¯s, the 10¡¯s are more dynamic but the 20¡¯s are a sweeter sound, more crisp and pronounced. That is how I see it and love them both.
toggle quoted message
Show quoted text
On Jul 19, 2020, at 6:14 PM, Andy Heckl <andyheckl@...> wrote:
? [Edited Message Follows]
Durs,
The DQ-1W specifications are in the attached flyer.?
?
<hfe_dahlquist_dq-lp1_flyer_en 2.pdf>
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Thank you Andy, the flyer states the DQ-1W has a frequency response of 20 - 120 Hz.
On 07/19/2020 3:13 PM Andy Heckl <andyheckl@...> wrote:
[Edited Message Follows]
Durs,
The DQ-1W specifications are in the attached flyer.?
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Durs,
The DQ-1W specifications are in the attached flyer.?
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Hello,
Anyone know the frequency specs of the DQ-1W?
Any consensus if the DQ-20's are better than the DQ-10's?
Thank you.
Durs Koenig
Forestville, CA
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Interested, sent you a direct email, thanks!
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pair of DQ-10s and pair of Dq-1w and other stuff
Hi everyone.... Well I just moved offices and and my new space I cant set up like 5? different systems..? I am in red hook brooklyn...? IF anyone has an intersted in buying a pair of? dq-10 and pair dq-1w? I have a room full of other equipment that I will also be selling ( from Amps to turntables ).?? I have the dq-10 for better part of 15 years had Bill at MillerSound do the sourounds . Had a milwork shop rebuild the roman stands.? all works as it should they are " mirror image " set. any interest please email? bsohne5@...best bill
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I built new crossovers for my DQ-10s several years back and have what is left of the old ones.? I used the L1 and L2 inductors and the 35 ohm resistor from the old ones and left the rest.? They have been lying around now for a couple of years and before I throw them out I was wondering if anyone would be interested in them.? They have the yellow mylar caps and all the remaining resisters and inductors.? I would be happy to ship them to anyone willing to cover the cost of shipping.? Let me know if you are interested.
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Samuel, who sells the correct foam? I've got the Springfield Speaker version, they've always been solid with me.
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Found this: /g/DahlquistSpeakers/topic/44466676#3413To me, the spider should sit flat. Before I removed the foam the spider was pulled up about .2" from flat. It might not make a difference...it seems to not be a thing. So, Large Advent woofers are the same, no? They're relatively cheap and readily available. Project back from the brink!
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Hi Matt,
I don't believe a spacer was ever required. And if you deem one is needed I'd seriously question if the surround or cone is correct. I've seen at least 5 different surrounds being marketed. With only one being correct. As for the VC readings, if your lucky the tensile wire may be shot or the solder joints failing.?
Best wishes DD
Nevermind, I think the project just hit a wall. One woofer is reading 0.4-0.6ohm and the other from MEGS to 7 ohms (both foams removed) as I move the cone about.
So I'm at:
-Find out if they're repairable
-Wait for a pair of woofers to show up
-Part out to recoup my investment
-Find a suitable replacement (non-starter as there are none that wouldn't degrade value.
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Nevermind, I think the project just hit a wall. One woofer is reading 0.4-0.6ohm and the other from MEGS to 7 ohms (both foams removed) as I move the cone about.
So I'm at:
-Find out if they're repairable
-Wait for a pair of woofers to show up
-Part out to recoup my investment
-Find a suitable replacement (non-starter as there are none that wouldn't degrade value.
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SpongeSound
