dhl93449

Responses from dhl93449

Is this a phase issue? How to fix?
Are you measuring the levels from the same position in the room? I.e., at the listening position, for example? 
Best sounding transistors
auxinputI would like to comment on your response above.The offset in a power amp has nothing to do with whether it uses bipolar or MOSFET or any other transistors. It depends on circuit topography and how much DC feedback is used (or if servo amps... 
DVD Rippers are Cheap and CD Transports are Not -- Why?
Redbook CD playback occurs with data streaming in real time (1X disk speed), and as result any errors must be corrected in real time on the fly. Difficult to do without audible effects. A data drive, however, reads the disk much faster (20X-30X) a... 
Is OPPO losing it's way?
The analog output stages have a much bigger impact on the sound quality than the DAC chip, IMHO. I have an OPPO 95 and have never been very impressed with the sound from it's analog outputs. The same digital (from the Oppo) processed through my Br... 
Question for sub woofer users
Technically they are supposed to be set and forget. But I find they need tweaking depending on the program material. Nothing to do with the other equipment, just variables in the recordings. 
Using Tape Out from Preamp for powered sub woofer.
Although you can control the sub volume with it’s own volume control, you will have to adjust this every time you change your main volume. The sub volume control is mainly to adjust the "relative" volume levels, and once adjusted, usually is left ... 
BW 800-805 D3 series VS 800-805 Nautilus/S series
I have 804S and 803D and find the smaller 804S almost as engaging. I think if both had the same crossover components, the differences might be even smaller. The 804S uses lower grade polypropylene couping caps to the midrange and tweeter, while th... 
B&W CDM- bad crossover????
See if you can get the service manual from B&W. They have them for the discontinued models on their website.If the crossover is typical of most B&W designs, there is a single coupling cap connecting the tweeter to the input. There may also... 
luxman transfomer jumper
Don’t know where you are located, but here in the States I once considered buying a Luxman phono preamp from Japan (its 100V not 110V) and was told by Luxman service that they will not repair Japanese 100V units here. They will be sent back to Jap... 
Phono Circuit Difference Between Spectral Preamps?
DaveThis is an ancient post. I know I have spoken with you privately. I have a DMC-10 that I have modified as you are aware. You can adjust the bias current in the output stages to deal with "heat". More importantly, you have to be careful you do ... 
Cheater plug safety
Lifting a ground connection is not in itself unsafe (many amps like the Parasound have ground lift switches). But I would be sure your sub has an input transformer. Many new designs do not. If not, there could be a safety issue, especially if that... 
An all Parasound system - Good idea?
I have JC1s (two) and the JC2 preamp. I would not recommend the JC3 phono as I prefer discrete Class A circuit topography for the phono pre-amp (as does John Curl, BTW). The JC3 uses IC op-amps not Class A discrete designs. I think you will find t... 
"Vintage" high end gear vs new and upgrade path?
My opinions on vintage vs modern circuit design;Vintage equipment is most likely using discrete class A circuit designs which IMHO are better sounding than anything modern built with op-amps. A good example is my Spectral DMC 10 phono stage. All d... 
Reliabilty, Keeping Equipment Powered on or off?
skiroeI can't speak to all equipment, but I am very familiar with Parasound as I have schematics for the JC1, JC2 and other products such as the 2200ii and P3. Although well designed (as good or better than most), there is no voltage transient pro... 
Help Wanted: I Need A Remote Control for EDGE G2 PreAmp
Logitech makes universal remotes for a lot of equipment. I think you can go to their website and see if the Edge equipment is in their database. Some years back I had this issue with Bryston. Their remotes were outrageously priced but the Bryston ...