Quick Start Guide

Owner’s Reference GCHA Headphone Ampliﬁer

Connect to an AC power source

Avoid switched outlets

Make sure the GCHA is on

Choose analog or digital or both

Turn the Gain

Control off

Plug the headphones in

If you are using a computer

Once you have decided on the location and chosen the appropriate power, audio and USB cables, you are ready to install the GCHA into your system or your desktop.

Plug the GCHA into the AC power source using the AC power cable you selected. It is advisable to use as short a power cable as possible to the GCHA.

Once the GCHA has been connected to the power source, make sure that power source is energized and providing AC power to the GCHA.

If you are using an AC wall receptacle to power the GCHA, make

sure the AC receptacle is not a switched outlet. Switched outlets are those outlets that can be turned on/off with the wall switch. It is advisable to leave the GCHA powered at all times.

Once the GCHA has been powered, turn the front panel gain control clockwise to turn the unit “on”. Once it is “on”, note the blue light on the front panel of the GCHA, under the logo, should be lit. Your GCHA Headphone Ampliﬁ er should now be ready to connect.

Insert the GCHA into the system by ﬁ rst connecting the GCHA to the source. The choices are an analog audio source or a digital audio source from a computer, or both. Analog audio sources would include the RCA single ended output of a CD player, DVD player, tuner, phono preampliﬁ er, or outputs of a preampliﬁ er. Digital sources would be any USB style output from a computer.

If you are using analog sources, you may connect directly to the analog input of the GCHA. If you are using a computer, plug in the USB cable at this time. If you are using both, plug both analog and digital in at this time.

Turn the front panel Gain Control (volume control) fully counter clockwise to mute the outputs before plugging headphones into the GCHA. Note: this switch only controls the output and does not turn the power to the unit on or off.

Plug in your headphones to the front panel, making sure the front panel level control is turned down. The headphones should be 16 Ohms or higher impedance to work properly.

If you are using a computer to play music from, please note that the GCHA is designed to work seamlessly and automatically with Windows XP®. The GCHA

should also work with other versions of Windows such as Windows 2000® and Apple Macintosh computers®. No special drivers are needed or included.

With your computer on and the GCHA plugged in, plug the USB cable into your computer. Windows XP will automatically recognize the GCHA after a short delay and will automatically install the driver. No driver discs are necessary.

	4826 Sterling Drive, Boulder, CO 80301	Quick Start Guide 2
	PH: 720.406.8946 service@psaudio.com www.psaudio.com	Quick Start Guide 2
	PH: 720.406.8946 service@psaudio.com www.psaudio.com

GCHA specifications

The PS Audio GCHA is an innovative headphone amplifier that has garnered attention for its remarkable performance and versatility. Designed to provide an extraordinary listening experience, the GCHA combines cutting-edge technology with user-friendly features to cater to both casual listeners and audiophiles alike.

One of the standout characteristics of the PS Audio GCHA is its powerful amplification capabilities. It delivers up to 1 watt per channel, ensuring that it can drive a wide variety of headphones, from high-impedance models to more sensitive in-ear monitors. This level of power allows the GCHA to reproduce dynamic sound stages and intricate details, making it an excellent choice for critical listening across various music genres.

The GCHA incorporates a unique analog signal path, which sets it apart from many digital headphone amplifiers on the market. PS Audio emphasizes a non-fatiguing listening experience, and the GCHA achieves this by utilizing high-quality components, including audiophile-grade op-amps and capacitors. This results in a warm, natural sound signature that remains true to the original recording.

Connectivity options are abundant with the GCHA, giving users flexibility in integrating it into their audio systems. The amplifier features multiple inputs, including RCA and 3.5mm connections, allowing for seamless integration with other audio devices. Additionally, a high-quality headphone output ensures that users can enjoy their music without compromise.

Integrated into the GCHA is also a high-performance power supply that minimizes noise and interference. This well-engineered power management system ensures consistent performance, providing a clean audio signal even in challenging environments. A sturdy and well-designed chassis adds to the amplifier's longevity while reducing the risk of physical damage.

Another notable feature of the PS Audio GCHA is its elegant design. With a sleek, modern appearance, it fits well in any audio setup, blending aesthetic appeal with practical functionality. The front panel includes intuitive controls, allowing users to adjust volume and input selection easily.

In summary, the PS Audio GCHA is a top-tier headphone amplifier that marries powerful performance with high-quality construction and user-friendly features. Its ability to deliver a rich and immersive listening experience makes it a worthy addition to the audiophile's equipment arsenal. Whether you're enjoying a casual listening session or engaging in serious music analysis, the GCHA stands out as an exceptional choice.