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Description: 

The Adcom GTP-600 is a versatile stereo tuner/preamplifier from the early 1990s, designed as a clean, no-nonsense control center to pair with Adcom’s high-current power amplifiers. It features a sensitive FM/AM tuner, a solid MM phono stage for vinyl playback, multiple line-level inputs, tape loops, and remote control capability for convenient operation. Known for its neutral, low-noise signal path and straightforward layout, the GTP-600 delivers a clear, musical presentation without unnecessary processing. With its understated industrial styling and reputation for reliability, it remains a popular choice for those seeking affordable, flexible preamp/tuner performance with classic Adcom sound.

Cosmetic details:

  • In great cosmetic condition, has some scratches/marks, see pictures for details.
  • The unit has been thoroughly cleaned inside and out to remove dust, debris, and surface blemishes. The interior was carefully vacuumed using a soft-bristle brush to ensure gentle yet effective dust removal without damaging internal components. 

Items included:

  • Only comes with what you see in the pictures which includes the unit itself, original box, and original manuals only.

Key details:

  • Unit powers on and worked on our initial test run but on our second test run the audio output became very staticky/crackly. This was the case on all inputs tested and outputs. We are not sure what the issue is and did not attempt to diagnose the issue. Selling as is for parts/repair due to this.
  • Please note this is a final sale item, no refunds/returns.  

Contact:

  • Message us with any questions and check out and follow our eBay store for more similar items for sale.

Why buy from us?

At HTF Audio, we put care into every unit we list—cleaned, tested, and ready for its next home. Unlike general resellers, we focus mainly on audio gear, so everything we sell gets hands-on attention, from detailed functional testing to cosmetic work. Most of our listings include a custom video so you can see performance for yourself. And with our experience in shipping vintage audio, your gear will arrive safe and sound—just as pictured.

Our Store Policies

Please review all applicable policies to ensure a smooth purchase and avoid potential issues. We strive to provide excellent customer service and want you to be satisfied with your experience, so don’t hesitate to contact us with any questions or concerns.

Photo Disclaimer By purchasing this item, you acknowledge that you have reviewed all photos and understand the item is sold as pictured. If something is shown or missing in the images but not mentioned in the description, the photos take precedence. Only items explicitly shown or listed are included—this excludes any accessories, cables, or original packaging unless stated. Please message us with any questions before purchasing.
As is Policy Please note that any items sold “as is” are final sale regardless of whether they work or not. This does not specifically mean that this item is an “as is” item unless stated in the description above.
Return Policy For new items, returns may be subject to up to a 50% refund deduction if the item is opened or returned with missing components or accessories. Items that are damaged or show signs of tampering may receive up to a 100% refund deduction in accordance with eBay policies. If the item includes any tamper-evident stickers, they must remain intact and in place; removal may result in a partial refund.