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Our store will be closed 12/24 - 12/25 and 12/31 - 1/1. You can still place online orders. | Check us out on Youtube! | Call us at (480) 207-1511.
Our store will be closed 12/24 - 12/25 and 12/31 - 1/1. You can still place online orders. | Check us out on Youtube! | Call us at (480) 207-1511.

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Adcom GFA-555II Stereo Power Amplifier Made in USA (1990-1995)

Sold out
Original price $1,349.99
Original price $1,349.99 - Original price $1,349.99
Original price $1,349.99
Current price $999.99
$999.99 - $999.99
Current price $999.99

There's power, and then there's power. The Adcom GFA-555II one of the best power amps you can get: it has excellent imaging, a deep and accurate bass, and a fantastic sense of dynamics. It's rated at 200 watts per channel into 8 ohms (stereo) or 600 watts into 8 ohms (mono). It even features an instant distortion alert on the front panel, where the LED light will light up if the left and/or right channel approaches any form of distortion (including THD, IM, TIM, and SID) that exceeds one percent. Team it up with a matching high-quality preamp such as the Adcom GTP-500II, and your audio system will sound better than you ever thought possible!

CONDITION

SPENCERTIFIED- Fully certified by Spencer

Refurbished and SPENCERTIFIED

Every function has been confirmed 100% working. We have cleaned it inside and out and replaced any worn parts. A recap was performed if necessary. All pots, knobs, connectors and boards have been cleaned with CRC cleaner.

Cosmetic Condition: Very Good.

Functional Condition: Works Like New.

WHAT'S IN THE BOX?

  • Adcom GFA-555 II Stereo Power Amplifier

Other information about the Adcom GFA555II

  • 200 watts per channel into 8 Ω from 20 - 20,000 Hz at less than 0.04% THD, both channels driven
  • 325 watts per channel into 4 Ω from 20 - 20,000 Hz at less than 0.04% THD, both channels driven (requires fan option to do this for any length of time)
  • 600 watts into 8 Ω from 20 - 20,000 Hz at less than 0.04% THD, bridged mono (requires fan option to do this for any length of time)
  • 850 watts into 4 Ω from 20 - 20,000 Hz at less than 0.09% THD, bridged mono (requires fan option to do this for any length of time)
  • Frequency response: 10Hz to 20kHz, +0, -0.25 dB at 1 W RMS into 8 Ω.
  • Total harmonic distortion: 0.04%
  • Damping factor: 800
  • Gain: 27 dB
  • Input sensitivity: 1.75V
  • Signal to noise ratio: 110dB
  • Semiconductors: 42 x transistors, 2 x zener diodes, 13 x diodes, 2 x IC, 2 x diode bridges
  • Two gold-plated, Teflon-insulted brass RCA jacks

DIMENSIONS

  • 17" x 12.2" x 6.75" (Length x Width x Height)
  • Weight: 35 lbs

INPUTS

  • Stereo Input L/R x1 (back)

OUTPUTS

  • Stereo Speakers L/R x1 (back)

MANUFACTURER

  • Made in USA

Testimonials

Spencertified is a dream for anybody looking for quality vintage electronics that can include a warranty. Relive your youth and enjoy the nostalgia of reel to reels, VCRs, Betamaxes, 8 track players, CD carousels, vintage and bluetooth stereo receivers, laserdisc players and much more. Quality brands like Pioneer, Sony, Magnavox, are in abundance. Spencer is gracious, professional, and beyond knowledgeable. Stop in for a visit you won’t regret!!Reply

Glenn John

New to the hobby. They went above and beyond I feel!! Can’t wait to make my next purchase!!

Josh J

Bought a equalizer at this place that offers older newer electronics for reasonable prices .... A blast from the past that look all new again.. met Spencer good guy who will treat you honest and fair 🤓😎....Kool I'm happy and I know you will be to... 😎

Merle musicinme

My Sony 400 disc player stopped working. I watched YouTube videos and came across this website. Since 90% of failures are the belts I decided to try to fix it myself with the help of the video. It was the belts and after installing them it works great again. I received the belts really quickly and with no prior knowledge took the case off with help from the video and installed the belts myself. So happy to have my player working again. I will always contact Spencertified for my parts and repair needs. Thanks so much. Try them, you won't be disappointed.

Henry Nash

Spencer and Amy helped us find 40 or so speakers to build a wall out of them at a restaurant and were super helpful finding and loading up all of the speakers. The wall turned out great and would definitely recommend them for anything sound!

Tommy Sims

A very nice outfit to do business with; Product was just what I was looking for, ( am/fm tuner) reasonably priced, nice friendly correspondence with Amy, they've got it all, I'll likely be back sooner than later... Thanks folks!

Jeffrey Jordan

Awesome service, helped me find what I was looking for. Knowledgeable and hooked us up!

Micah Murray

Awesome! I love this place, the guy is really nice and has amazing stuff. Great deals, best in the valley by far.

Thomas McEntire

SPENCERTIFIED IS PERFECT FOR ME!
I JUST GOT WHAT I WANTED FROM FRIENDLY UNDERSTANDING SOUND PEOPLE!
Visit this shop for sweet deals on receivers, multi-disc CD players, turntables and all of your stereo and surround sound speakers and components.(they had many options, new stuff and older vintage too.)
REALLY! It was cool to do business with honest people who listened and gave me just what I was looking for. I asked a lot of questions about equipment and was shown different options, and, different prices, straight forward and honest.

Phil D

Spencer was super helpful and knowledgeable when I visit him. I experienced a slight issue with some hardware and he was more than willing to make it right. As a nice gesture he gave me a slight upgrade to the equipment I was purchasing. He’s very reasonable and enjoyable to work with! Highly recommend!

VSefcovic

Spencer is extremely knowledgeable and the selection is vast. GO down there! You wont be sorry!

EV B

A SpenCertified Short Film

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