audio_ken

Responses from audio_ken

Amp for Martin logan CLS Originals
Rrog - just out of curiousity, what SS amps did you try? 
What is wrong with negative feedback?
If a person cares to look in any book covering filter theory, they'll find gain/phase graphs that illustrate propagation or group delay. For lowpass filters, which is what most amplifers are classified as, low frequencies have little or even no de... 
What amp do you use with your QUAD'S?
Harhau - I just rebuilt a 400A to use with my Martin Logan CLS's and it drives them pretty well, doesn't seem strained or anything. But, it is by no means an ear shattering experience. It's a work in progress so it just keeps getting better. The o... 
Review: Threshold 400a Amplifier
Ferrari, ... you sure you're not N.P. in disguise..lol?? (JK!!!) Yes, I agree that the early amps are truly a breakthrough, monster heatsinks, power supply and all. And they no doubt can be updated with new parts and tweaked to not play second fid... 
What amp do you use with your QUAD'S?
Harhau - My take on the 400a being used for driving stats is to do away with the "stacked" output devices and make a bank of simple emitter followers, using however many of the devices you like. Also, from it's output design and how it's integrate... 
Review: Threshold 400a Amplifier
I just got done rebuilding a later version 400a and yes, overall is a well done amp. A couple of people I have talked with complain about it blowing fuses when really pushed. I have my idea(s) as to what it could be but will refrain from speculati...