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Dahlquist DQ-10's. Your thoughts on an amp for this?

I ran my DQ10s with 200wpc. I definitely liked more power with them. That said I ran them with as little as 38wpc tube power and at low volume they sounded fine. You definitely need to get them on low stands for them to sound their best.

cubdog
 
I'm sure the Kenwood will do fine with the speakers positioned right. If you Kenwood has the option, Stereo 2 channel will sound best while listening to music.

Now that you have a set of highly regarded speakers you may want think about a power upgrade down the road. I had a pair hooked up to an Adcom GFA-555 amp and the DQ's sounded pretty good. Not so good on a surround receiver in simulated stereo mode. Not bad, but the Adcom was better. The Adcom was definitely better on the bottom end and had plenty of power (200wpc) if needed. Adcom amps give a good bang for the buck too.
 
IanMcI said:
I won't be using these at very high volume. One thing that intrigues me is their reputation for clarity. I want good representation at volumes appropriate for "easy listening", i.e., jazz, vocals, acoustic, 70's rock, etc. These won't be pushed. So...

With a minimum suggested 60w, could I get by with an 80wpc to 100wpc when I'll be using lower volumes? And are the AV (home theater) amps good for these?

I'm adding a photo with the grill off for those who haven't seen the insides of these. The grill did come off quite easily.

The mid/tweeters all needed a little tightening of the bolts holding them to their respective masonite boards, and one of the mid mounting legs needed some slop taken out as well. Surrounds look good (on this one speaker - I haven't got to the other)

EDIT: Thanks for the input, Valveglow; actually, I made a comment on how ugly the insides (grill off) are thought to be (see photo). I agree, they are quite attractive looking - very simple lines; restrained. Big, though!

Ian
SF Bay Area
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That's an aftermarket woofer, so all bets are off. When John Dahlquist and Saul Marantz toured the country together to introduce these speakers back in the 70s, the used, and recommended (yeah, I was there) an Ampzilla, and that's a good choice.
 
audiomagnate said:
That's an aftermarket woofer, so all bets are off. When John Dahlquist and Saul Marantz toured the country together to introduce these speakers back in the 70s, the used, and recommended (yeah, I was there) an Ampzilla, and that's a good choice.
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I also do not recall that woofer at least in the units that I have seen.
 
I like my DQ's played low ...... but I LOVE them played loud. There are many speakers that perform as welll at low volumes .... I love them CRANKED....one thing I have noticed about the DQ10s : I will be playing them at a "reasonably loud" level .... then go outside and realize I am playing them flat out "LOUD" ..... they are clean and you tend to go louder when you encounter speakers like this since you aren't noticing "noise" ..... they really open up when pushed .....but you need some horsepower to do that.
 
Really? After-market woofer? I did ask if all was original. Now I'm not sure what to expect. I suppose I'll have to take that woofer out to see what it is, and whether or not I can expect for it to be an improvement of not.

Glad I posted that pic!

Ian
SF Bay Area
 
audiomagnate said:
That's an aftermarket woofer, so all bets are off. When John Dahlquist and Saul Marantz toured the country together to introduce these speakers back in the 70s, the used, and recommended (yeah, I was there) an Ampzilla, and that's a good choice.
Click to expand...

Ampzilla was one of the better sounding solid state amps around when the DQ-10 hit the market, but gained a rep for magic smoke problems. I'd opt for Bryson if going upper end vintage solid state, otherwise Dynaco 400 for affordable. There are other good solid state options as well of course. I'd also find a mod that looses the Motorola tweeter to make it a 4-way.

Sent from my SM-N900V using Tapatalk
 
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The magic smoke ceased very early on. But I remember the shop I frequented regularly demonstrated the DQ-10s with a Hafler DH-200/500. They sounded pretty good.
 
Here's the woofer. Any idea what it might be, and whether or not it's an appropriate replacement?

55-1530
4 ohm
made in taiwan

Ian
SF Bay Area
 

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IanMcI said:
Here's the woofer. Any idea what it might be, and whether or not it's an appropriate replacement?

55-1530
4 ohm
made in taiwan

Ian
SF Bay Area
Click to expand...

I'm not sure there is an appropriate replacement but you should have no problem finding the correct Advent drivers. You definitely want to restore them with the correct drivers.

cubdog
 
I do see that they used the same drivers as the Large Advent. Seems to be a 10" in a 12" basket with a masonite board used as a spacer to make up the difference.

Regnar has a replacement (no pic or further info on their site), but at close to two bills apiece, it's fast becoming a money pit I can't afford.

I'll see what's out there for Large Advents in my area.

By the way, this replacement is a 4 ohm driver. The speaker is an 8 ohm speaker. Would the original woofer be an 8 ohm or 4 ohm? I'm thinking that there may be a resistance adjustment going on (a parallel or series thing?) as the assorted drivers are interconnected. I don't know how that works.

Ian
SF Bay Area
 
Here's the other woofer. A bit different than the other. Cone looks like plastic (the other was poly-coated paper). I don't know what the ohm rating is.

Ian
SF Bay Area
 

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I'm sure that's the only way to go, audiomagnate, but I'm left wondering if I should look for originals, those with the masonite ring, or for the Advent replacements with the all-metal basket.

I'm a little p-o'd at myself for getting into this. I'd already stretched the budget, now it looks like I'm having to shell out more for what I already thought I had. These will have to be put on the back-burner for awhile, and storing them is an issue.

I'll be keeping an eye out for what I need. At any rate, I've learned a bit about Dalquists and Advents.

Ian
SF Bay Area
 
They are worth your investments. It's not going to cost you that much to get them up and running properly. Once you do you will be happy you did so.

cubdog
 
Try eBay for a pair of the original woofers, used, with new foam installed properly (roll inverterted). Confirm that hi-freq fuse on back panel and level control on bass bin (for hi-freq) are working. There is also an early and a late model crossover, the latter uses mylar, yellow colored caps, that are less prone to deterioration. I use 200 watts via Aragon 4004mkii and it is magnificent when used with subwoofers.
 
Mine sounded good with a couple different receivers. They went from good to very good with a Mitsubishi DA-A10DC. The next big improvement was adding a DQ-1W sub. When I ditched the passive crossover and powered the sub with a bridged Sony TAN55ES I knew I was getting there, but still wasn't there yet.
As sweet as the Mitsu was it developed stability problems and had to go before it took out my DQ's. Not being a tech myself, I decided to get off the vintage bandwagon and went with new 250W Emotiva Mono-blocks. I have nearly arrived at awesome. They operate in pure Class A mode for up to 35W which is wonderful for my normal listening. Above that, I've had the 1/2 way up and measured 110dB. The Sony clipped on my Mofi Abbey Road so the sub getting a new voice coil installed. I will replace the Sony with a new Class D amp for the sub, probably a Crown XLS-1000.
 
I don't know who made the first woofer. The second one has 1056 as the manufacturer's code which would make it a Fisher. They are both the wrong woofers for those cabinets!
 
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