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The GS-1 Thread - Page 24

post #346 of 540
Haha at the avatar smily_headphones1.gif.
post #347 of 540
Quote:
Originally Posted by Rope View Post

Amplifier manufacturers should have to rate amp output in volts, not watts.  Rating in watts is misleading.

 

Volts into different loads sounds good to me.  An OTL tube amp that outputs 50V unloaded but only 5V into 25 ohms, not so good.

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
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post #348 of 540
Quote:
Originally Posted by DigitalFreak View Post


Ummmm excuse me, not trying to derail the thread but we have to talk. Let me first introduce myself, I'm DigitalFreak but everyone on here calls me DF, nice to meet you prep, Hope you don't mind me calling you prep. We seem to have a bit of a problem here my friend in that I'm seeing double "cough avatar cough" Shall we settle this like gentlemen with our best headphones at 20 paces in the head-fi parking lot?

 

 

blink.gif

 

Hey man - where did you get that?  O parking lot huh..  3:00pm after school  - be there or be square.  

 

To be honest.  I never saw you around these parts before.  But I found the avatar on the Internet somewhere.  But seance you got like waaay more post than I do.  I'll take a step back..

 

Not a problem.  Strange though - that we have the same one..  

post #349 of 540
Quote:
Originally Posted by Rope View Post

Amplifier manufacturers should have to rate amp output in volts, not watts.  Rating in watts is misleading.

 

They are both misleading if only given at one point.  With watts or voltage you can get the other.  But if only given at one extreme, means very little.  Ie telling me you have a 45Vpp output but failing to mention that its never going to happen into 50Ohm because current is capped at 15mA is pointless.  Or saying 8W into 8Ohm tells me you have great current output but maybe that same 8Vrms is your ceiling.

post #350 of 540
Quote:
Originally Posted by preproman View Post

 

 

blink.gif

 

Hey man - where did you get that?  O parking lot huh..  3:00pm after school  - be there or be square.  

 

To be honest.  I never saw you around these parts before.  But I found the avatar on the Internet somewhere.  But seance you got like waaay more post than I do.  I'll take a step back..

 

Not a problem.  Strange though - that we have the same one..  


Thank you very much sir. Nice new avatar to bad it isn't a Indianapolis Colts logo. By the way the old avatar wasn't a big deal I was just joking around with you lol. Come on in and say HI if you want. I'm sure the tribe would be interested in meeting my doppelganger.

post #351 of 540
Quote:
Originally Posted by DigitalFreak View Post


Thank you very much sir. Nice new avatar to bad it isn't a Indianapolis Colts logo. By the way the old avatar wasn't a big deal I was just joking around with you lol. Come on in and say HI if you want. I'm sure the tribe would be interested in meeting my doppelganger.

 

Colts??  HaHaHa  that's a real good joke.  I know your not serious.  Anyway - see you there.

post #352 of 540
Quote:
Originally Posted by justin w. View Post

The prototype heatsinks for the new modules are in, now I can finally see how much I can turn up the juice.

 

 

700

 

 

I may call it the "Dynalo+".  It's inbetween Kevin Gilmore's Dynalo and Dynahi in terms of power output and design.

 

Sort of like this?

 

 

Dynamid = (2001-present) - Dynamid is present day name for a balanced Dynalo.  The original Gilmore dynamic amp has a balanced bridge option which added an inverted output stage to each channel. That amp has two input stages and four output stages. The balanced bridge amp only needs an unbalanced source. Two outputs are connected to the left side of the headphone and the other two are connected to the right side. It has twice the voltage swing, twice the slew rate, and four times the total power. A fully balanced amp will have four input stages and four output stages as four separate channels. That is how the balanced dynahi is built and how some of the balanced dynalo amps are built. But it requires a balanced source to drive all four channels.

 

Prior to the Dynahi release, many people considered this to be "the reference amp". After the dynahi release, the proper place in the pecking order the balanced bridged amp must be "the middle", and therefore people started calling it the Dynamid.  This is an unfortunately misleading name. Dozens, if not hundreds have been built in the DIY community.  They used to be commercially available www.HeadAmp.com under the product name Gilmore Reference Amp.

 

 

post #353 of 540

It's a module update so if one board is Dynalo+ then two becomes Dynamid+ ;)  Here is the inside of a GS-X for example...

700


Edited by Solude - 8/7/12 at 2:57pm
post #354 of 540

nope, that was the DIY-created name for building a balanced Dynalo.  (reply is to preproman)


Edited by justin w. - 8/7/12 at 3:09pm

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #355 of 540

as promised, here is a comparison of the max volts peak to peak of:

 

New GS-X w/ new Dynalo+ modules

Old GS-X w/ new Dynalo+ modules (for those who just want to upgrade the modules -- the same thing applies for the GS-1)

Old GS-X w/ original Dynalo modules (GS-1 has the same results)

 

These are single ended results so expect the numbers to be roughly double when driving balanced

 

 

700

 

With the New GS-X/New Module, there is more power across the range of headphone impedances, and also much less distortion than you'd experience with the old module as you approached its limits.

 

Putting the new module in an original GS-1 or GS-X, it's with low impedance headphones (32 ohms and below) that you will see the greatest benefit.

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #356 of 540
Quote:
Originally Posted by justin w. View Post

The prototype heatsinks for the new modules are in, now I can finally see how much I can turn up the juice.

 

 

700

 

 

I may call it the "Dynalo+".  It's inbetween Kevin Gilmore's Dynalo and Dynahi in terms of power output and design.

 

"Dynalo+" is a poor choice.

 

GS-2 or GS-X2 or  anything else..... please.  eek.gif

post #357 of 540
Quote:
Originally Posted by upstateguy View Post

 

"Dynalo+" is a poor choice.

 

GS-2 or GS-X2 or  anything else..... please.  eek.gif

 

for the name of the module, not the amp

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #358 of 540
Quote:
Originally Posted by justin w. View Post

as promised, here is a comparison of the max volts peak to peak of:

(for those who just want to upgrade the modules -- the same thing applies for the GS-1)

 

Justin, do you have any idea of how much it will cost owners of the older amps to upgrade the modules? also, is it possible to upgrade a v2se (i think i know the answer, but i gotta ask...)

post #359 of 540
Quote:
Originally Posted by daveDerek View Post

 

Justin, do you have any idea of how much it will cost owners of the older amps to upgrade the modules? also, is it possible to upgrade a v2se (i think i know the answer, but i gotta ask...)

$199 for GS-1 $399 for GS-X

 

cant upgrade a V2SE because it didnt use modules for the amp circuit.

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #360 of 540
Why is the new GS-X outperforming the old with upgraded amp modules?
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