Description of Unit Rear Panel, Amplifier Outputs

GFA-6006 Rear Panel

4	8	7	9	10	11	1

5		6

GFA-6002 Rear Panel

Description of Unit: Rear Panel

[4] Inputs & [5] Outputs

The audio inputs and outputs for the GFA-6002 and GFA-6006 are through high-quality, gold-plated RCA jacks to minimize high-frequency losses, noise, etc. They will accept standard RCA-type plugs, one for each of the channels. To insure that the performance designed into the amplifier is preserved, you should use the highest quality audio cables possible.

The GFA-6002 and 6006 feature inputs and outputs for each channel to allow “daisy-chaining” of channels or additional amplifiers in an installation. To direct signal from one channel to another, connect an appropriate cable (RCA to RCA, male to male) from the output of one channel to the input of the desired channel.

In bridged operation (see Bridged Operation) only the Bridged Mono Input is to be used. On the GFA-6006, bridged mono inputs are channels 1,3, and 5. On the GFA-6002, bridged mono input is channel 1. For “daisy-chaining” the corresponding outputs for these channels are active.

[6] Input Level Adjustment

Each channel has an input level adjustment. The purpose of this adjustment is to balance levels in installations where physical circumstances may create a large difference in volume. Turn the level control to the fully clockwise position for maximum sensitivity; turning the control counter clockwise reduces sensitivity. Use a small blade screwdriver to adjust. In balanced operation only the input adjustments for channels 1, 3, and 5 (GFA-6006) or channel 1 (GFA-6002)

are effective (see BRIDGED OPERATION for more details).

[7] Amplifier Outputs

The GFA-6006/6002’s connections to the loudspeakers are made through high-grade, 5-way, binding post terminals. There are two terminals for each speaker, which are colored RED for the positive (+) output and BLACK for the negative (-) output. The binding posts will accept a variety of connector types; the most secure and prevalent of these is the “U”-type spade connectors (at least 0.25” wide and maximum width of 0.57”). The terminal will also accept bare wire (up to AWG10) and “banana” type plugs (single or dual).

In connecting the amplifier to the loudspeaker, it is vital to maintain proper polarity (positive to positive, negative to negative) in stereo operation. On the GFA-6006/6002, the positive terminal is color coded RED

ADCOM GFA-6006/02 Owner’s Manual 9

GFA-6006, GFA-6002 specifications

The Adcom GFA-6006 and GFA-6002 are distinguished power amplifiers renowned for their performance, reliability, and advanced technology. Designed for audiophiles and professional users alike, these amplifiers bring powerful sound reproduction and precision to any audio system.

The Adcom GFA-6006 is a high-performance, six-channel amplifier that is perfect for multi-channel audio setups. It delivers a robust output of 100 watts per channel into 8 ohms and can drive loads down to 4 ohms with ease. This feature is crucial for home theaters and multi-room systems where consistent power delivery is critical. The GFA-6006 employs a class AB design that ensures minimal distortion and a dynamic soundstage, making it ideal for both music and film playback.

In contrast, the Adcom GFA-6002 is a two-channel powerhouse, offering similar high-performance characteristics tailored for stereo applications. It pushes out 200 watts per channel at 8 ohms and maintains stability with 4 ohm loads. This model is designed with a high damping factor, which translates to better control over speaker motion, ensuring tighter bass and clearer highs. The GFA-6002 is particularly suited for critical listening environments where audio fidelity is paramount.

Both models feature Adcom's proprietary feedback circuits for improved linearity and reduced distortion across all frequencies. The amplifiers utilize a robust, high-current power supply and feature copper bus bars that enhance performance during demanding playback scenarios. Additionally, Adcom ensures the thermal stability of its amplifiers through efficient heat dissipation techniques, including ample heatsinking and strategically placed ventilation to prevent overheating during extended use.

The build quality of the GFA series amplifiers is substantial, with a rugged chassis that minimizes vibration and interference. The elegant yet functional design makes them a visually appealing addition to any audio system while being functional in various setups.

In summary, the Adcom GFA-6006 and GFA-6002 represent the pinnacle of amplifier technology, offering versatility, power, and fidelity. Whether users are seeking a multi-channel system or a dedicated stereo setup, these amplifiers provide the necessary performance and reliability. Their advanced features and superior audio quality reaffirm Adcom's reputation as a leader in high-performance audio equipment.