rodman99999

Responses from rodman99999

Planar close to a rear wall? Quad for example?
I have to agree- Dipolar radiators just DO NOT do well close to the rear wall. 
Tubes for my Mac's 275....NOS or just used?
I've purchased the majority of my NOS tubes on eBay, or from eBay contacts over the last 5 years. All the purchases(probably 40+) were excellent, but for one(if you e-mail me, I'll let you know his user name). I got four counterfeit Telefunkens fr... 
What does more power do for Magnepans?
The biggest problem with that calculation is that to obtain a subjective doubling of loudness requires ten times the amplifier power. See: (http://www.gcaudio.com/resources/howtos/voltageloudness.html) 
What is a passive preamp?
Actually "preamplifier" Means, "an amplifier before" something else, just as "pre-driver" means a transistor or tube that drives (provides a gain stage) before an output stage. Obviously- A preamplifier would be placed BEFORE a power amplifier, an... 
Designer Hall of Fame
Stereophile does a much better job of remembering David Hafler's history than I could here, although they pass on how he popularized the "ultralinear" tube circuit:( http://stereophile.com/news/11661/ ). Bill Johnson single-handedly resurrected tu... 
Designer Hall of Fame
Am I showing my age by mentioning William Zane Johnson(ARC), David Hafler(Dyanco,etc.), John Dahlquist, and John Curl(the Levinson JC-2)? Each of these men produced designs that rocked/created the "high-end" world. 
Most resolving, transparent amps.
Phd- This company:(http://www.thecableco.com/about.php) allows you to try cables in your home, without risk, before you buy. That will eliminate any costly errors/possible system mis-matches. happy listening!! 
KT88s for Audio Research VS55
I'd been using NOS Phillips ECG's in my Cary SLM-100's for a long time, and couldn't bare the thought of changing to new production anything. That was until I found out what the prices had done on matched octets of ANYTHING NOS. Almost impossible ... 
Integrated Tube Amplifier for First Timer?
Look at these pieces, and read all the reviews: (http://www.upscaleaudio.com/view_category.asp?cat=36) They have some very worthwhile(user friendly) features too! 
Second failure of new amplifier
As long as you rolled the tubes with tubes of the exact same family(IE: 6DJ8/6922/6H23/7308/E88cc/E188cc/CCa) it should not void the warranty. Burn-in time has absolutely nothing to do with an amps affinity for blowing tubes. Sometimes the transla... 
Need quick answer- BAT VK3iX vs. BAT VK3ixSE
One more thing- If you buy the iX and shop for 6922's: ALWAYS specify LOW NOISE tubes. Of course- The ones in the SE will already be LN. 
Need quick answer- BAT VK3iX vs. BAT VK3ixSE
With the iX version- You will have the ability to try a wide variety of 6922's, while the SE will restrict you to Two choices, the 6H30 or 6H30pi. I've got a VK-D5 Cd player and have stuffed it with 6 NOS Siemens CCa's from the 60's. The accuracy/... 
Upgrade path...Need suggestions
Dennis Had(Cary + AES) designs some excellent equipment. I'd have recommended that also, but your budget..... I've owned a pair of Cary SLM-100s(slightly modded) for a while and love them. I'm also bi-amping, and agree that it would be an excellen... 
Most resolving, transparent amps.
Tgrisham and Phd have nailed the term, "transparency" to a tee. Further- If the recordings you are listening were engineered/reproduced with an unfortunate hand/ear- The transparent amp that faithfully reproduces the shortcomings IS NOT the liabil... 
CAL Alpha DAC: Stock vs. 24/96 upgrade
I don't know what you're using for an interconnect. If it's not something outstanding- this will vastly improve your combo's musicality (http://cls.audiogon.com/cgi-bin/cls.pl?cabldgtl&1206926128) I owned an Icon II, and when I went to the Del...