Why no love for the SRM-717 (w/Omega)?
Feb 14, 2007 at 12:29 AM Thread Starter Post #1 of 13

sargon2003

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I found a good deal on a Stax Omega package that includes the 717. Does anyone like this amp? How does it compare to the 727 and others?

Or is just universally disliked…

Cheers
 
Feb 14, 2007 at 1:52 AM Post #2 of 13

smeggy

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Many people are quite happy with the 717. It's probably not the best in the world for the Omega but then the alternatives are horrendously expensive unless you can find one used, even then it'll probably cost you more than the 717 will cost you.
 
Feb 14, 2007 at 2:08 AM Post #3 of 13

Carl

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The 717 goes great with less demanding 'stats, the O2s like moar power, though.

The big problem the 717/727s face is that their US and European prices aren't really that much less than the superior KGSS.
 
Feb 14, 2007 at 3:52 AM Post #5 of 13

Carl

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Quote:

Originally Posted by TheSloth /img/forum/go_quote.gif
I don't understand that point - the 717 has more power than the 007t doesn't it?


450v RMS, so yes. But compare that to the 1200v peak-to-peak the KGSS can do.
 
Feb 14, 2007 at 6:43 PM Post #7 of 13

spritzer

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This KGSS wasn't built by Headamp but by a former member that has a reputation for building sub par amps so draw your own conclusions.

The Omegas need every bit of power they can get and the 717 just doesn't cut it. If you can get it used for well under 1000$ then it is a good deal and you can be happy.
 
Feb 14, 2007 at 8:50 PM Post #9 of 13

Carl

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Quote:

Originally Posted by sargon2003 /img/forum/go_quote.gif
Yes the 717 would be about half the price of the headamp KGSS. I am thinking it would "get me in the door". And be a better buy than say the 4040 system.


It'll certainly do that, yeah.

Like the 404, the Omega II has some annoying traits when underamped, but it'll probably still be such a huge jump from what you were using previously that it won't bother you.
 
Apr 23, 2007 at 8:51 AM Post #10 of 13

ast

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Quote:

Originally Posted by Carl /img/forum/go_quote.gif
450v RMS, so yes. But compare that to the 1200v peak-to-peak the KGSS can do.


seems they measured differently:

KGSS: Output Voltage: 1200 Volts peak to peak

STAX 727 II: Maximum output voltage: 450 V r.m.s. / 1 KHz
 
Apr 23, 2007 at 9:28 AM Post #11 of 13

spritzer

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Quote:

Originally Posted by ast /img/forum/go_quote.gif
seems they measured differently:

KGSS: Output Voltage: 1200 Volts peak to peak

STAX 727 II: Maximum output voltage: 450 V r.m.s. / 1 KHz



The 727II has a peak-peak value of about 640v. To convert P-P to RMS multiply the value by 0.707 and if you know the RMS value multiply by 1.414 to get the P-P value.
 
Apr 23, 2007 at 11:24 AM Post #12 of 13

kevin gilmore

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Be careful with how the measurments are made.
peak to peak stator to stator is going to be twice as much
as peak to peak stator to ground.

koss esp950 is still the voltage king with 2400 volts peak to peak
stator to stator.

stator to stator measurements are really the correct way as that
is how the diaphram responds.
 
Apr 24, 2007 at 5:09 AM Post #13 of 13

ast

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Quote:

Originally Posted by kevin gilmore /img/forum/go_quote.gif
Be careful with how the measurments are made.
peak to peak stator to stator is going to be twice as much
as peak to peak stator to ground.

koss esp950 is still the voltage king with 2400 volts peak to peak
stator to stator.

stator to stator measurements are really the correct way as that
is how the diaphram responds.





since THE Master is here, I'd like to have your honest opinion since I am about to pull the trigger on an Omega II. KGSS vs. new 727 II, which one is better and by how much?
 

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