Adcom GFA-6002 Stereo Power Amplifier at Vinyl Sound Buffalo NY The Adcom GFA-6002 is a high-current two-channel power amplifier engineered for clean, dynamic power delivery and stable speaker control across a wide range of loads. Delivering 70 watts per channel into 8 ohms and 100 watts per channel into 4 ohms, with a damping factor greater than 400 and an ultra-wide power bandwidth of 5Hz to 130kHz, it offers the grip and precision that reveals the full potential of any loudspeaker system. Available at Vinyl Sound in Buffalo, NY. Toroidal Transformer Design and Precision Engineering The GFA-6002 is part of Adcom's GFA-600x series, built around a toroidal transformer design chosen for exceptional efficiency, minimal excess noise, and low leakage inductance compared to conventional EI-core transformer designs. Dual pairs of output transistors per channel, FR4 fiberglass circuit boards, and ultra-efficient heat sinks complete an engineering package that prioritizes reliability and consistent performance under sustained high-current demand. Lower total harmonic distortion across the operating range ensures a clean, pure signal path with a supremely quiet noise floor. Performance and Speaker Control The GFA-6002 is capable of driving a wide variety of loudspeakers with confidence and control. Its high-current output stage maintains composure and detail during demanding passages, with bass that is tight and controlled, a midrange that remains open and natural, and high frequencies that extend smoothly without losing definition. The damping factor of greater than 400 ensures precise woofer cone control for accurate, well-defined bass across all speaker types. Key Features 70W per channel into 8 ohms / 100W per channel into 4 ohms for confident, dynamic power delivery Bridgeable to 175W mono into 8 ohms for single-channel or subwoofer applications Toroidal transformer design for exceptional efficiency, low noise, and minimal leakage inductance Dual pairs of output transistors per channel on FR4 fiberglass circuit boards with ultra-efficient heat sinks Damping factor greater than 400 (20Hz to 20kHz) for tight, controlled bass reproduction Ultra-wide power bandwidth from 5Hz to 130kHz (-3dB) Low THD for clean, pure sound and a supremely quiet noise floor Dual voltage compatible at 120VAC and 230VAC / 50-60Hz Technical Specifications Specification Value Output Power — 8 Ohms (Stereo) 70W per channel Output Power — 4 Ohms (Stereo) 100W per channel Bridged Mono Power — 8 Ohms 175W Frequency Response +0 / -0.25dB, 10Hz to 20kHz (1W into 8 ohms) Power Bandwidth (-3dB) 5Hz to 130kHz Input Impedance 17,000 ohms Input Sensitivity Variable Damping Factor Greater than 400 (20Hz to 20kHz) Power Supply 120VAC and 230VAC / 50-60Hz Dimensions (W x H x D) 17" x 5.25" x 15.5" (432 x 133.4 x 393.7 mm) Weight 18 lbs. (8.2 kg) Shipping Weight 21 lbs. (9.5 kg) Frequently Asked Questions What is the Adcom GFA-6002? The Adcom GFA-6002 is a two-channel stereo power amplifier rated at 70 watts per channel into 8 ohms and 100 watts per channel into 4 ohms, bridgeable to 175 watts mono into 8 ohms. It uses a toroidal transformer, dual pairs of output transistors per channel, and FR4 fiberglass circuit boards, with a damping factor greater than 400. Available at Vinyl Sound in Buffalo, NY. What is the power output of the GFA-6002? The GFA-6002 delivers 70 watts per channel into 8 ohms and 100 watts per channel into 4 ohms in stereo mode. In bridged mono mode it delivers 175 watts into 8 ohms, providing additional headroom for single-channel applications such as a passive subwoofer or a dedicated center channel. Can the GFA-6002 be bridged to mono? Yes. The GFA-6002 can be bridged to deliver 175 watts mono into 8 ohms. This is useful when driving a single high-power loudspeaker, a passive subwoofer, or any application where the full output of both channels is required in a single output. A minimum speaker impedance of 8 ohms is recommended when operating in bridged mono mode. What is the toroidal transformer and why does Adcom use it in the GFA-6002? The toroidal transformer in the GFA-6002 is a ring-shaped transformer chosen for its high efficiency, minimal electromagnetic leakage inductance, and low radiated noise compared to conventional EI-core transformer designs. These characteristics reduce interference with the sensitive audio signal circuits, resulting in a quieter noise floor and more stable voltage regulation. How does the GFA-6002 fit into the Adcom amplifier lineup? The GFA-6002 is Adcom's entry-level two-channel power amplifier in the GFA-600x series, sharing the same core design philosophy of high-current output, low distortion, and reliable build quality as higher-powered models, while offering a more compact footprint suited to smaller rooms and moderately sensitive loudspeakers. Where can I buy the Adcom GFA-6002 in the USA? The Adcom GFA-6002 is available at Vinyl Sound, an authorized Adcom dealer in Buffalo, NY. Browse the full power amplifier collection at Vinyl Sound or contact our team for system matching advice and in-store demonstrations.
