128x128

ack

Responses from ack

Magtech amplifier over heating.
You need to know that ThermalTrak have had a bad reputation for failures and SOME models were allegedly discontinued a few years ago. I suggest you read this thread http://www.diyaudio.com/forums/solid-state/237929-thermaltrak-transistors-have-bee... 
Why no Spectral phono stage?
Hi Al,yes, I followed that thread back then, and this is why I thought I would point you to whatsbestforum.com. In fact, I referenced some key posts of yours in a related thread there - see http://www.whatsbestforum.com/showthread.php?16704-Spectr... 
Why no Spectral phono stage?
There will be a phono preamp this year; it's been in development for over a decade, and rumor has it the specs and sound are extra-ordinary as usual. Suggest you join the Spectral forum at whatsbestforum.com Al, the forum would also welcome your t... 
Current limit onset definition?
The "6" is indeed an "8" - 8A. see this clear picture of the back panel at http://hifi.myinsales.ru/collection/usiliteli/product/spectral-dma-180 Newer amps have 5A fuses. 
Current limit onset definition?
Peak current is akin to saying a circuit breaker may let through 150A of *instantaneous* current before it trips (in fact, in a short circuit that many instantaneous amps aren't unusual before the breaker trips or wires start to melt); and continu... 
VPI SDS exact speed in .... 40 minutes?
OK greak and sorry, I got the weight/frequency thing backwards 
VPI SDS exact speed in .... 40 minutes?
Agree with pbnaudio - the actual frequency reading on the SDS is irrelevant; it's easy to prove that with different mass centerweights: lighter ones will need lower freq settings, while heavier ones will require higher. The good news is that you c... 
Turnable database with TimeLine
@halcro:> Contrast that to the same Raven AC-2 with the TIMELINE where ‘stylus drag’ is confirmed and differs to the KAB results?Your test and comparison has a potential fundamental flaw - you must first re-set steady speed with the Timeline an... 
Review: Martin Logan Summit X Speaker
Here's ps68's crossover mod link http://www.martinloganowners.com/forum/showthread.php?9600-Spire-with-External-Crossovers-amp-Electronicsand here's mine before his http://www.martinloganowners.com/forum/showthread.php?12761-Modifying-the-Odyssey-... 
Review: Martin Logan Summit X Speaker
re: potentially redoing the Summit X crossover... the problem is going to be space in the cabinet for the large Mundorf capacitors and especially the coils. One of my woofer coils is 6 inches in diameter. And if the capacitor values are not custom... 
Review: Martin Logan Summit X Speaker
What a remarkable job you have done explaining the differences, pros and cons! Thank you, and congratulations on the X! Check out my system's page for Odyssey modifications and especially the Mundorf crossover, which I would highly recommend and s... 
Price Increases
The challenge is to find, say, the $10K speaker that sounds like those $100K "high-end" ones, instead of spending $100K to get something that sounds like a $10K speaker. 
Stylus Rake Angle
@peterayer: adjusting VTA/SRA affects tracking force and other parameters, so what you are hearing is probably a combination of all these parameters, and perhaps more of the tracking force than the very tiny SRA/VTA adjustment you affected (if you... 
Stylus Rake Angle
What I would really like to see is a test record where each track of the same music be cut at different and documented SRA angles, plus a final track (of the same music) where the cutting SRA is constantly varied. Then during playback and with our... 
Why does Spectral have such a cult following
@Vicksburg: Join the Spectral forum at http://whatsbestforum.com to share your thoughts