Vintage ADCOM Power Amplifiers Brochure GFA-535 GFA-545 GFA-555

retrodave12
(7150)
Registered as a private seller
Consumer protection regulations resulting from EU consumer law are therefore not applicable. eBay buyer protection still applies to most purchases.
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US $8.00
Approximately£6.08
(US $8.00 / Unit)
Condition:
Very Good
“Brochure is in very good condition”
Hurry before it's gone. 1 person is watching this item.
Breathe easy. Returns accepted.
Postage:
US $6.00 (approx £4.56) USPS Ground Advantage®.
Located in: Santa Barbara, California, United States
Delivery:
Estimated between Wed, 5 Nov and Fri, 7 Nov to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Returns:
60 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Payments:
    Diners Club

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eBay item number:326725725168
Last updated on 28 Oct, 2025 15:15:33 GMTView all revisionsView all revisions

Item specifics

Condition
Very Good
A book that has been read and does not look new, but is in excellent condition. No obvious damage to the book cover, with the dust jacket (if applicable) included for hard covers. No missing or damaged pages, no creases or tears, no underlining or highlighting of text, and no writing in the margins. Some identifying marks on the inside cover, but this is minimal. Very little wear and tear. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller notes
“Brochure is in very good condition”
Country of Origin
United States
Brand
ADCOM
MPN
GFA-555
Category

Item description from the seller

About this seller

retrodave12

99.9% positive Feedback•14K items sold

Joined Jan 2008
Usually responds within 24 hours
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
We are sellers of vintage electronics ,vacuum tubes, vintage radios parts comic books and collectables .Over the years I have bought thousands of tubes now I am in the process of sorting testing and ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage cost
4.9
Delivery time
5.0
Communication
5.0

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Books Manuals MagazinesVintage radio partsVintage RadiosSpeakersVintage Audio Video GearVacuum tubesVintage ElectronicsOther tubesVintage Computer Parts

Seller Feedback (6,859)

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  • s***a (31)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    All comics arrived in great shape, no issues at all. There were a lot of them, but the seller made sure everything was packed with care. Communication was easy, and it was clear I was buying from someone reliable. Nothing negative to say about the experience. The price for the whole lot was great, shipping was quick, and overall I’m very pleased. Would definitely buy from Dave again and that isn't just based on the comics I received, but to deal with him again. Buy from this seller people.
    Marvel Comics Vision and the Scarlet Witch Vol. 2 1985 #1-12 Complete Set NM (#326614759017)
  • i***s (1373)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    A+ 5 Star !!! repeat customer... super responsive and always fast fair and friendly with good merch packed GREAT at great prices... highly recommend and will happily use again...! nb: have not tested all 5 in amp, but i have never had an issue with this vendor or their merchandise...i have full faith and confidence that if any issues arise, they will be addressed completely to my satisfaction... buy with confidence!
    Sylvania JHS 6005 6AQ5W Vacuum Tubes Lot of 5 TV-7 Tested NOS NIB (#326701582142)
  • y***g (483)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Super fast shipping and good communication. Item was packaged well and arrived as described. Very pleasant experience. Excellent seller. A+++
    Mother Teresa of Calcutta Marvel Comics #1 1984 NM (#326683142232)
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Product ratings and reviews

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5.0
24 product ratings
  • 23 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 16 reviews
  • by fmnoise
    23 Mar, 2021Most favourable review

    The Adcom GFA-555se: A great stereo (or mono bridgable) amplifier with TRUE balanced differential inputs.

    All of the pro's of the original GFA-555 and improved model GFA-555 II plus the GFA-555se includes toggle switch selectable single-ended RCA or XLR inputs which are TRUE balanced differential inputs (*confirmed by the factory engineers). Clean design, simple signal-path, heavy duty power supply (no inexpensive 'switching power supply" as many others use) , class A/B operation and great performance for the price.

    Verified purchase: YesCondition: Pre-ownedSold by: asinewave24

  • by audio_video_doctor
    11 Jun, 2025

    Superior Vintage Power!!

    This is a very good sounding amplifier. It has excellent build quality.

    Verified purchase: YesCondition: Pre-ownedSold by: shoppingusa2010

  • by mrfixit970
    08 Dec, 2017

    Clean high current amp super sound stage

    This is the redesign of the 555 done by Nelson Pass, an acclaimed audio engineer. It has more massive heat sinks with double the driver board componentry. The audio is very clean and powerful. This is a brute of an amplifier and will stand lots of abuse, without breaking down. It is an exceptional buy at any price under a thousand.

    Verified purchase: YesSold by: lostnfunds

  • by glmat-14
    19 Jan, 2024

    Adcom. Vintage and still NEW!!

    Former Nashville audio consultant at the McIntosh store NICHOLSON HI FI..Sold these units. Fabulous 2nd choice to by beloved McIntosh gear. What a superb audiophile BARGAIN..GMATLOCK

    Verified purchase: YesCondition: Pre-ownedSold by: fishak1

  • by 2014kenn35055
    19 Aug, 2020

    great buy

    words can not say how powerful and great this amplifier is.get it now.

    Verified purchase: YesCondition: Pre-ownedSold by: 428kingcobra

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