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68.33.3.16
In Reply to: RE: Crown X4000 follow up posted by E-Stat on October 14, 2014 at 14:05:12
but would be nice to know if the difference is caused by the load from the Acuostats or the mismatch between the pre and the amp.....
dee
;-D
True terror is to wake up one morning and discover that your high school class is running the country.
quote by Kurt Vonnegut
Follow Ups:
is the primary issue is with the speakers. While they have a more linear load than the U-1s, it is consistently lower - especially at the bottom. It stays below 4 ohms until about 200 hz before rising.
Most of my listening in the garage is not at high levels, but I cranked it a bit last night. Long before clipping, the amp's sound gets very unhappy. By contrast, the Stasis doesn't change character at all until clipping. I've had that amp for over thirty years driving Acoustats (initially 2+2s) and it has never failed. I'm putting it back in service today. :)
Excuse my laziness (looking in Inmate Systems, for example), but which Stasis Amp are you using?
I've got a few variations on the Stasis theme in my "used" amp short list...
Dman
Analog Junkie
About five years ago, I proactively replaced the computer grade Mallory PS caps and added bypasses. Other than that, it is bone stock since 1981.
I was considering a pair of Stasis 1s, BUT given the usual things (age and all that is entailed for repairs/upkeep, not to mention the rarity of those beasts), I was thinking more like Nackamichi PA-5 or 7s. The pricing is still a little bit "out there" (thank you, ePay).
So, I'm thinking (and still haven't decided on) a run of many different amps of varying classes (A, A/B, D, etc.). Ironically, I kind of gave up on tubes after I sold off my ARC D-76a. Loved the amp, just didn't love the fact that almost monthly, something went amiss, even after upgrading/replacing a bunch of things. In short, I'm just tired of even routine maintenance!
I'll pony up shortly and post my "short list" for everyone's revue/critiquing/criticism/flaming/etc.)...
Cheers, and thank!
Dman
Analog Junkie
"I was thinking more like Nackamichi PA-5..."
I have one that's about 30 years old (I bought it new) and have never had the top off. Most of the years it has been on 24/7 but the last few I've been turning it off when not in use to try and squeak a few more years out of the filter caps. Frankly I have no idea if the duty cycle has much effect but it makes me feel better. However it does need to be on a good 20 minutes on to sound OK and an hour on to sound great. Just one of those trade-offs...
On a dollar/hour (or year) basis it is the cheapest amplifier I've ever owned and I think the best sounding. Although it's not as efficient as my heat pump most of the time we heat here and the BPA electricity is relatively cheap so a warm amplifier isn't a problem, if you are in a hot climate it might not be the best choice.
Regards,
Rick
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