bbro

Responses from bbro

SET vs OTL
Paulfolbrecht,I have one of those Pavel designed Deja Vu PP 45 amps (it also can run 2A3's) built around two big Chicago circa 1950 output transformers and it is indeed one of the best if not the best amps ever made. And it can drive some pretty i... 
Dahlquist LP-1 Passive/Active crossover
Thanks rodman99999,I do in fact have the LP-1 manual and have been calculating the necessary capacitor values required, depending on the input impedance of the main speaker amps I use. It apparently doesn't matter what the impedance is of the amp ... 
Inexpensive high efficiency bookshelf speakers
If price is an object the Sound Dynamics RTS 3s are still an amazing speaker for their modest size and price ($280 new and ~ $150 used on audigon). 
Dahlquist DQ-1W subwoofers-value??
I checked on the Audiogon blue book but it is not there. My gut tells me a good condition should be about $200-$400 depending on condition. That is of course a 2X spread but hopefully a start. 
Review: Dahlquist DQ-10 Speaker
I just picked up a pair of original DQ 10 (mirror imaged version) Dahlquists and put them into my system this afternoon. WOW!!! My current speakers are Magnepan 20R's which are no slouch. My amp(s) are either a Spectron Musician iii SE MK II (with... 
external crossover recommendations
The Bryston 10B Sub or regular are another possible choice to consider. 
Integrated amp under $ 500.
You didn't mention whether tubes or SS but in the tube category the Jolida 102B with the very sweet 6BQ5 (EL 84) tubes is a great integrated providing ~ 20 watts per channel. Also in that same category the Sophia Baby is great if you have fairly e... 
Low cost Amp?
The Jolida 102B, occasionally found on Audigon for ~ $400-$500, with the very engaging El 84 (6BQ5) tubes (as used in many of the old HH Scott amps) in push pull is a great little amp and a bargain to boot. 
Low cost Amp?
You didn't mention what speakers you would be driving but the Sophia Baby is extremely sweet sounding if you can get by with its low watttage. Sell new for ~$800 but can be found used or demos for around $450 on Audigon. 
Improving on Classic Amps
Hey Mrtennis,I agree, "stay classic and go vintage tubes" is great advice. In fact, I personally am currently running a pair of vintage CJ Premier 8A monobloc tube amps on my Magnepan 20Rs with beautiful results. But to muddy the waters, I also ha... 
Best CDP under $500?..... Used market
I agree with Tvad and Jaybo above but in the event that someday your Pd-65 dies and can't be revived then I would grab a Music Hall CD 25 or one of its variants which can be had here on Audigon for less that your $500 target. 
classic sounding 25 watt tube amp
Jolida 102B is a sweet little integrated based on two pair of EL 84 (6BQ5) output tubes which were used in the vintage HH Scott amps. It is ~19 watts per side but has very good output transformers for its size and modest price and can drive my Qua... 
Adcom GFA 555 amp upgrades
I had a Mark I and Mark II. I had the Mark II modded by Musical Concepts since it was a later model. Much improvement. However after much comparision I found the original unmodded Mark I to my preference. 
whats a good older hdcd cd player?
I ditto Mechans recommendation above of the Music Hall MMF CD 25 with HDCD. Superb for the modest price ~ $550 new and can be found for about $300 used here on Audigon. 
SET amp for high efficiency horn speaker
Also take a look at the hand built Deja Vu Audio SET and PP amps in both 300B and 2A3/45 configuration, which come up on Audigon occasionally. Those built around vintage Chicago and Acrosound output transformers are quite amazing.