Re: Anyone need a new amp with some umph!!!!
|
Joined: Jun 2003
Posts: 8,488 Likes: 1
axiomite
|
axiomite
Joined: Jun 2003
Posts: 8,488 Likes: 1 |
I do love a good amp thread.
You guys are great.
bibere usque ad hilaritatem
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Dec 2007
Posts: 7,786
axiomite
|
axiomite
Joined: Dec 2007
Posts: 7,786 |
Paul, it wouldn't sound any different than 215 watts(or 21.5 watts)if they weren't actually used. But it sure would look cool!
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Feb 2004
Posts: 845
aficionado
|
aficionado
Joined: Feb 2004
Posts: 845 |
Rick, Now, THAT'S funny!
LIFE: "Choices, balance, and timing"
(Larryism)
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: May 2003
Posts: 18,044
shareholder in the making
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
I got down to 24 db. Whatever that means in terms of percent THD.
I am the Doctor, and THIS... is my SPOON!
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Apr 2003
Posts: 16,441
shareholder in the making
|
shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
I got down to -30dB before I couldn't tell.
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
Here a page which converts between distortion attenuation (what the test measures), and % THD: http://www.sengpielaudio.com/calculator-thd.htm-30dB is 3% THD! And to go back to my example. 0.2% THD is -54dB, while 0.02% is -74dB.
Last edited by ClubNeon; 09/16/09 07:47 PM. Reason: THD not TDH
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: May 2003
Posts: 18,044
shareholder in the making
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
I am the Doctor, and THIS... is my SPOON!
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Dec 2003
Posts: 10,420
shareholder in the making
|
shareholder in the making
Joined: Dec 2003
Posts: 10,420 |
Let's not forget that the THD is also at max output, lower volume levels would have much less THD, this leads to the idea of having extra horsepower available being a good thing in that the THD you hear(or don't hear) would most likely be non-existent at most listening levels with higher powered amps.
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Dec 2008
Posts: 1,361
connoisseur
|
connoisseur
Joined: Dec 2008
Posts: 1,361 |
And Tom, it is still working great. So good in fact, I had to stop myself from buying another one just "because" when Guitar Center was advertising a 70% off sale over Labor Day ($400 - 70% = CHEAP). The fan noise fix may discourage some, but for the price the fear should be minimal. And to my surprise, it only makes detectable heat when the high current rails kick in, which is very seldom. (ala, FredK's comment about only never really needed the whole 800 watts.)
But when it's time to really enjoy the music, it gets hot, but sounds great. None of the sonic limits of my Denon AVR (which i can still find via A/B switching when I use the center ch signal from the AVR - certain sounds have a harshness that stands out (to me anyway!).
As for stats, I found the Peavey amp I tried had noticeable hiss, and a related (I think) higher THD and SN Ratio. So don't assume all pro amps are the same. Try them first.
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
|
|
|
Re: Anyone need a new amp with some umph!!!!
|
Joined: Dec 2006
Posts: 3,569
connoisseur
|
connoisseur
Joined: Dec 2006
Posts: 3,569 |
Thanks Rick, cool site now I just need to know what the different tests represent. I ask because my scores varied quite a bit depending on the test. For example on the “octave” test I hit -45dB four out of four times but in the others I varied anywhere from a little above to slightly below the mean. Is any one of those tests more representative of “real” music?
I did the test with both my Axiom M80s and Sennheiser HD600s and got results that were mostly dead on with a few exceptions where they were within +-3dB of each other.
3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1
|
|
|
Forums16
Topics24,949
Posts442,518
Members15,620
|
Most Online2,082 Jan 22nd, 2020
|
|
0 members (),
231
guests, and
3
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|