PS Audio GCHA Headphone Amp HIGH PERFORMANCE Modifications!!: Reference Audio Mods


	"Popular" High Performance Modifications
	Blowout Capacitor Sale! Dollar Menu Mods Audio Mirror/DAC-AH Mods Bel Canto DAC 1 & 2 Mods Behringer DCX/DEQ 2496 Cambridge 840c Mods CEC Transport Mods Denon DVD2930CI Mods Denon DVD3930CI Mods ESound CD-E5 Mods Esoteric DV50/DV60 Mods Esoteric UX/XO Mods JVC XV-N512S Mods Marantz CD-17 Mods Marantz SA11S1 Mods Marantz SA11S2 Mods Marantz SA-7S1 Mods Marantz SA-15S1 Mods Marantz BD-8002 Mods Marantz SA-8260 Mods Meridian Mods Music Hall CD25.2 Mods NAD S-100 Preamp Mods NuForce Ref 9 Mods Olive Symph/Musica Mods Olive 4HD Mods Oppo BDP-83 Mods/Player Oppo DV970HD Mods/Player Oppo DV971H Mods Oppo DV980H Mods/Player Oppo DV981HD Mods/Player Oppo DV983HD Mods/Player Original CD2008MKII Mods Pioneer DV59AVi Mods Philips DVD963sa Mods PS Audio Digital Link III Dac PS Audio P300 Mods PS Audio GCHA Mods PS Audio HCA-2 Amp Mods PS Audio PWT/PWD Mods Rega Saturn Ultra Mods Reimyo CDP777 Mods Samsung HD850/950 Mods Samsung HD841/Tosh 4960 Sangean HDT-1X HD Tuner Slim Devices Transporter Sony S2000/S500Bluray Sony DVP-NS9100ES Mods Sony SCD-1/777ES Mods Toshiba SD-3980 Mods Von Schweikert VR1 Mods Wadia 170itransport Mods Wadia 23 Mods Wadia 301 Mods



	Communicate With Us

	All Inquiries
	Reference Audio Mods Worldwide 17255 Vista Del Lago Dr. Riverside, California 92503, USA Contact: Kyle Takenaga Tel: 951-454-4842 Email: referenceaudiomods@yahoo.com

< Back to Modifications

PS Audio GCHA Headphone Amp HIGH PERFORMANCE Modifications!!

Quantity in Basket:none
Available:
Code: PSGCHA
Price: $0.00
Shipping Weight: 0.00 pounds

Full High Performance Modification package
($500 Installed/Return Shipping Fedex Ground is Free!)

Audiocom Superclock 4 Upgrade for USB input use ($295 Installed)

Complete Cryogenic Treatment to entire GCHA after its been modified ($200, Add 1 week extra for return)

Quantity:

PS Audio GCHA- Modification Inquiries:

WorldWide Service:

Kyle Takenaga RAM(Riverside, California) referenceaudiomods@yahoo.com phone (951)780-2869

Reference Audio Mods Impressions of the stock and modified PS Audio GCHA headphone amplifier:
The PS Audio GCHA Reference Headphone amplifier is PS Audio's response to creating a reference class headphone amplifier for the most critical listeners. The great feature of the GCHA HeadPhone Amplifier is the way it was designed to work with any computer! Just plug into the USB port on any Mac or Windows based computer and it works. Upon connection, it automatically installs the appropriate drivers and software and works transparently with Windows XP. You can stream live music over the Net, playback downloaded music from your hard drive or play a CD from your computer’s CD-R drive or RAM Modified CD/DVD/SACD player.
We received one after its long awaited arrival in 2006. We used a set of Sennheiser HD-650 headphones and a RAM Fully Modified Samsung HD-950 universal player, and just recently a Fully Modded RAM Oppo DV-981HD and DV970HD player for evaluation. The stock sound is toted to being very good from the advertisements, but we noticed its lacks the resolution, openess, clarity and naturalness. We applied our industry unique modification topologies in a mod package most people can afford and we noticed a absolute significant and audiable improvement in transparency, high frequency capabilities, detail, dynamics and microdynamics, immediacy and clarity. If you own a GCHA you'll be in for a treat of your life for incredible world class performance!

Modifications, Descriptions, and Price

Full Modifications package ($500 installed/Return Shipping is Free)

Replace stock diodes in the power supply with custom handmade ultra low impedance RAM versions.

Improvement: Replacing the stock diodes with our custom RAM versions eliminate the grain and glare of the stock noisy silicon diodes. Since our diode bridges are ultra low impedance and ultra fast, music has now more speed and more dynamics. Our diode bridges are handmade per mod order and take some time to make and install.

Replace ALL stock mediorce quality electrolytic capacitors in power supply circuits and PS Audio GainCell/Amplfier circuits with Rubycon ZA/ZL series capacitors.

Improvement: These capacitors are much more open sounding, very neutral and have more speed than any other cap on the market. We have compared Blackgate FK/N, Panasonic FC/FM, Nichican Muse, and Os-cons and they are not in the same league. We arrange them in a way they are ultra fast and provide the best performance. There is a significant amount of time/labor involved in doing this but the result is completely rewarding.

Replace stock internal line audio wiring with Audio Consulting Silver Wire/Cotton Tubing

Improvement: Much more openess and resolution, no more grain in the sound, bass definiton improves, tonal balanced is much better.

Replace stock RCA single ended jacks with the new WBT NextGen connectors

Improvement: We add a set of high performance WBT Nextgen RCA connectors for the closest to "no connector" connection possible for the single ended outputs. These are the best sounding RCA female chassis connectors on the market! The reason is they use very little amount of metal and have no eddy current issues with a large surface of metal unlike everything else available on the market. We had done head to head comparisons and these connectors lose the grain the other connectors such as cardas and vampire connectors on the market.

Optional Upgrades:
Take the RAM Modded GCHA much further!

Audiocom Superclock 4 Reference Clocking Upgrade ($295 Installed) FOR USE WITH USB INPUT ONLY!-
Replace stock oscillator circuit for USB input with the New Audiocom Superclock 4 ultra low jitter reference clock. The Superclock 4 offers much lower jitter rate for the digital circuitry than the stock cmos type oscillator. The effects of adding the Superclock 4 into GCHA bring: More focus and detail into the presentation, Wider/Deeper/Taller Soundstaging, More subtle detail is now coming off the disc so the inner resolution of instruments and guitar plucks (for example) have the texture and liveliness and presence like they do in person. Overall resolution increases and Bass/Dynamics are tighter, deeper and more refined and controlled. Video will look better as the phase noise in the digital processing circuits is much lower, more vibrant colors and less grain. The mod only affects the USB section of the unit and will not affect the performance of the unit if you only use it will the RCA's.

Complete Cryogenic treatment after GCHA has been modified ($200, add 1 extra week for return) -
This mod option is done after the unit has been modified and nothing else is to be soldered or touched internally. This is an inudstry 1st! The benefits of cryogenic processing to the modified unit is: relieves stress in all solder connections and wiring connections, lowering the resonant engergies and intermodulation effects they produce, improved conductance of all materials (wires, connectors, solders, etc..), transient response, mechanical damping, improves heat dissapation. What is the sonic effects of this treatment? Heightened and more articulate perception of individual musical timbres and improved resolution and dynamics. Cryogenic treatment to the unit is a permanent process. The difference between modified and "cryomodified" is amazing!!

Customer Reviews

Send us a review and share your thoughts with other customers