The HeadAmp GS-X and GS-X MK2 Thread

[justin w.]

Quote:

OK, the standard 3-pin XLR pinouts are pin 1 - ground, pin 2 - positive (hot), and pin 3 - negative (cold). However, American companies used to (probably still) use pin 3 "hot" and pin 2 "cold". On some devices, there is a phase inverter, for example on your PerfectWave DAC II (don't know the exact pinouts it uses).
In a speaker system, you just swap the +/- on speaker side or the amp side to correct the mismatch between the source and the amp. I guess it's a bit harder in a headphone system.

 
are you sure your CD player is pin 3 hot?  pin 2 hot has been the standard of the AES for 20 years

 

[dan_can]

are you sure your CD player is pin 3 hot?  pin 2 hot has been the standard of the AES for 20 years

Yes. I've got Marantz CD-7 and Marantz SA-1.

All Marantz CD players use North American pinouts, even the current productions.

 

[justin w.]

the phase will be inverted, but thats not a problem.  same will be true of any balanced amp you use.  a lot of amps invert the phase anyway.

 

[MellowVelo]

Quote:

 
getting there.  going to get an update on the front panels this week.  last weekend, i laser engraved the back panels for the amp & PSU, and today/tomorrow the connectors are being attached to them.  the power supply boxes are assembled w/ the transformers mounted.  picked up the PSU umbilical cables last week.  the module PCBs probably ready this week.

Awesome work, Justin!

 

[David1961]

I now have the Senn HD600 which I'm using with my Pico Slim until I receive the GS-X, I've also just ordered a 4 pin balanced silver headphone cable for the 600 and GS-X. The HD600 sounds very good with the Pico Slim so I'm not sure what to expect when using the GS-X.

 

[dan_can]

I now have the Senn HD600 which I'm using with my Pico Slim until I receive the GS-X, I've also just ordered a 4 pin balanced silver headphone cable for the 600 and GS-X. The HD600 sounds very good with the Pico Slim so I'm not sure what to expect when using the GS-X.

At least 6 times better.

 

[MacedonianHero]

Hey Justin:

Any updates on the readiness to ship out the upgrade modules to us existing GS-X owners?

Thanks

 

[justin w.]

Hey Justin:

Any updates on the readiness to ship out the upgrade modules to us existing GS-X owners?

Thanks

I should be picking up the modules on monday. I wish that was the end of it, then i have to hand match the jfets and LEDs and assemble and test. I'll need about 2 weeks for that as i have to do 250 modules.


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[fhuang]

hey Justin, any left for the first batch?

 

[justin w.]

Quote:

hey Justin, any left for the first batch?

 
2 left

 

[preproman]

Where's the Headamp version of the Dynahi?

 

[justin w.]

Quote:

Where's the Headamp version of the Dynahi?

 
 
 
 

 
 


 
1 of 1, built 8 years ago.  i discontinued it.

 

[MacedonianHero]

Quote:

I should be picking up the modules on monday. I wish that was the end of it, then i have to hand match the jfets and LEDs and assemble and test. I'll need about 2 weeks for that as i have to do 250 modules.
Sent from my iPhone using Tapatalk

 
Cool...thank you sir for the update. Wow....250 modules. 

 
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1 of 1, built 8 years ago.  i discontinued it.

 
 
I'll take it. 

 

[fhuang]

just wondering, to use with an iem, which would get the better result?  the xlr(3 pin or 4 pin) jack or the 1/4 headphone jack? 

 

[David1961]

Quote:

just wondering, to use with an iem, which would get the better result?  the xlr(3 pin or 4 pin) jack or the 1/4 headphone jack? 

 
I've ordered a custom cable for my HD600's to use with the GS-X when I receive it, and was advised to get a 4 pin which is what I've done. Although the HD600 isn't an IEM.