Classic Vintage Adcom GFA-555 Power AmplifierA classic American made high power amplifier capable of driving just about any loudspeaker made, with low distortion and great sound. Designed by the esteemed Nelson Pass. The amp has been cleaned up, tested, and had DC offset and Bias adjusted. Electronically, this is almost all original.The RCA input jacks have been replaced. The originals were damaged. The 4 electrolytic capacitors on the low level board have been replaced with top level audio grade capacitors. The amplifier sounds great, and is electronically very good. Negatives:The amp has numerous dings along the top of the front face plate. Not sure what was going on there, but these are the largest cosmetic flaw. (see pictures) There is a small round ding on the top. Still some slight grunge on one side I didnt manage to clean off completely. The bottom is actually very nice, feet are fine - this amp was never dropped, which is good news. PLEASE CLOSELY LOOK AT THE PICTURES BEFORE ORDERING. Will be well packed and shipped with insurance. That usually means about $70-$80, depending on a lot of things. Rated Power Output200 watts per channel into 8 ? from 20 - 20,000 Hz at less than 0.04% THD, both channels driven.325 watts per channel into 4 ? 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 ? 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 ? from 20 - 20,000 Hz at less than 0.09% THD, bridged mono (requires fan option to do this for any length of time). Dynamic Headroom2.5 dB at 4 ?. Power Bandwidth1.7 - 100,000 Hz at - 3 dB. Frequency Response10 - 20,000 Hz +0, -0.25 dB at 1 W RMS into 8 ?. Damping FactorNot less than 800 from 20 - 20,000 Hz into 8 ?. NoiseNot less than -110dB down from 200 watts into 8 ?, A-weighted. Power Input120 VAC 50-60 Hz.72 VA idle.1,500 VA maximum.675 VA at 200 W into 8 ?.I measure 37.5 watts at idle, cold.60 watts at idle, warm (0.73A).92 Watts (1.09A) when delivering 1 watt per channel into 8 ?.845 watts when delivering 265 watts per channel into 8 ?. SizeChassis: 6-3/4 x 17 x 12-3/16 inches (172 x 432 x 310 mm) HWD.Overall: 7-1/4 x 17 x 12-3/16 inches (185 x 432 x 310 mm) HWD. Weight35 pounds (16 kg).39 pounds (18 kg), packed. QualityMade in USA.

Well I hate to sell this one. Been holding this for a long time in storage. Brought home and began listening to it last week and wow. I better stop right there. Very very clean. Only blemish found in the paint anywhere is on the bottom inside corner of the faceplate. Easy to do on this model as they are so heavy. The faceplate, and the top and sides are as nice as possible. You wont be disappointed. Works well and sounds wonderful. Includes box, packaging, paperwork and amp. Amp is 32lbs in original box that is 21x15x11. Oversized box to protect this will be 24x18x14. Sorry but there is no way around the bulk and weight and this and it will cost a bit. Any overestimation of shipping charges will be returned. Sold as-shown only in this listing. No additional guarantees.

This unit just came in on trade. I opened it up, cleaned the driver board and installed 4 new caps. Blew out and vacuumed out the rest. Tested and biased. Sounds great as it should it is a GFA. The bad news in the previous owner dropped it at least twice. Right and left outside cooling fins are bent and the top sheet metal is buckled in a spot or two.On Jan-30-24 at 11:07:46 PST, seller added the following information: McIntosh NOT Included!! Only selling Adcom amp. That is what you are bidding on. Thanks

I have powered these devices on, however I lack the additional equipment to test any further Sold as is No returns or refunds for any reason Please bid accordingly Units are already packed an ready to go, so once I receive payment they will ship next business day

Always have trouble uploading video to ebay so I put it on imgur to make it easy >>> https://imgur.com/a/EC5TjPh Sounds amazing very loud and crisp no issues with testing will ship and pack carefully with added insurance. This unit is in great condition meaning it is lightly used nearly new with next to no scratches if any. All units I sell are tested before listing and right before shipment to assure it is being sent to you in working condition unless otherwise stated. Please review pictures thoroughly as condition and quality can be shown there. Testing videos and additional pictures are easily provided upon request as videos are hard to upload to ebays posts. Items ship within 1-3 business days and typically arrive within a week depending on location and holidays. Any questions concerns or offers please feel free to contact me. If there are any issues with your item upon arrival such as damage, issues with quality or missing parts please contact me via eBay messenger or email. I make sure all buyers and customers are covered with either replacements or refunds.

GFA 555II TRANSFORMER

Adcom GFA-535 Amp, GFP-555II Pre-Amp & GFT-555II Tuner - All Tested & Working!!! all have been tested and are working condition. What you see is what you get. Comes with boxes, but no manuals or RCA cables. Local Pickup only See Photos

Made in USA Verstärker von ADCOM GFA 555II Gebraucht mit kleinen Farbfähler , BILD 5 und 3 der obere Deckel wurde neu lackiert.