GFA-6002 Specifications

Power Rating (To IEC/CEA-490A Requirements)

70 Watts continuous average power into 8 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.0% THD.

100 Watts continuous average power into 4 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.0% THD.

Bridged Power: 175 Watts continuous average power (one channel) into 8 ohms at any frequency between 20Hz and 20kHz with at less than 1.0% THD.

IM Distortion (SMPTE)

1 watt to 70 watts into 8 ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.05%

IM Distortion (CCIF, Any Combination from 4kHz to 20kHz)

70 watts into 8 ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.01%

Frequency Response @ 1 Watt into 8 Ohms

10Hz to 20kHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0, -0.25dB

Power Bandwidth (-3d B). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Hz to 130kHz

Dynamic Headroom Into 4 Ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 dB

Signal to Noise Ratio, “A” Weighted

70 watts into 8 ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 100dB

Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29dB

Input Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . variable

Input impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17k ohms

Damping Factor

2OHz to 2OkHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 400

Rise Time

5kHz, 90V, peak-to-peak square wave, 20% to 80%. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7µS

Power Consumption (Continuous, All Channels Driven)

Quiescent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30VA Maximum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600VA

General

Power (available in 230VAC by special order). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115VAC—50/6OHz Chassis Dimension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3” (76.2mm) x 17” (432mm) x 11.5” (292.1mm) Maximum Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5” (88.9mm) x 17” (432mm) x 12.5” (317.5mm) Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 lbs. (8.2kg) Weight, Packed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 lbs. (9.5kg)

14 ADCOM GFA-6006/02 Owner’s Manual

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Adcom GFA-6006 owner manual GFA-6002 Specifications, General
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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.
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