Excellent bass response and overall transparency- 24 hour mobile mechanic

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it is still the most beautiful sounding receiver I've ever heard (and believe me, I've heard a lot). No, I haven't heard a Mac yet, but I believe the emperor wears no clothes. A lady at a music store once asked me, "Have you heard a Macintosh? Well, my dad swears by them. Lafayette Auto Glass Repair

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I recommend them to anyone with space limitations or a very restrictive budget. They perform extraordinarily well for both size and price. Carson City semi truck repair

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The last guy must have received a damaged/sub-par unit or has an extremely silver-spoon taste. Paired with my JBL L-100's, this system is the envy of my friends. No-nonsense great music. mobile diesel mechanic

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Expansive soundstage and frequency response
Excellent bass response and overall transparency
Affordable
Heavy, sturdy construction
USA made

Remote need more features

This preamp/tuner is outstanding at its price point. I use an Arcam Alpha 8SE hdcd/cd player and an Adcom GFA-555 (200 wpc) amp into KEF Reference 103/4 loudspeakers, and the sound is unbelievable. Noticibly better than systems costing much more. Unitl I purchased the GTP-500II, I was using my Onkyo Integra A/V receiver as my preamp. I is an expensive A/V receiver with preamp outputs, so I expected it would be OK. Well it was, but man when I switched to the Adcom preamp the system really came alive!! Somehow the Integra was sapping or robbing the bass response, and I was on the verge of a subwoofer purchase. The Adcom, however, has a made a sub out of the question. The power flows through the Adcom so smoothly and freely, and the bass just came alive!! The soundstage and stereo separation is excellent, as it was using the receiver, but the frequency range and especially the bass is strong, clear and tight. The GTP-500II offers two sets of rca outputs; one labeled "Lab" and one labeled "norm". The owner's manual states that "Lab" is for the more critical listener, and allows the full frequency range, while "Norm" uses filters to protect the system. I'm using the "Lab" outputs with nice Audioquest Hyperlitz interconnects, and the sound is fantastic..Remote control is a little limited and outdated, but overall an excellent preamp.

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Pioneer Elite
Onkyo Integra
B&K PSP III

Very good phono section, be tough to find better without getting into the thousands of dollars.
Very neutral with tone controls bypassed
Has a good fm tuner
It has a remote

Am tuner jumping by 9khz instead of the standard 5-10khz increments.
Cheapish feel of volume knob

Never skipped a beat in the years i've owned this pre amp. I use the 500II biamped with 2 adcom 545II's to power a set of original infinity kappa 8.0's. The majority of critical listening consists of listening to albums, and the phono section of the 500II will not dissappoint. The phono section certainly isn't bright, only transparent while reproduceing the most delicate sounds accurately. In fact the 500II bigger brother the 555 preamp had one of the best phono sections ever tested by stereophile mag. at any price range!
In retrospect I should have gotten the 555 over the 500II as I rarely use the tuner, but it does do a very good job of pulling in FM. AM is a different story, I love talk radio, and can't tune to the majority of channels. Example if I wanted to listen to 850, it goes from 846 to 855 and won't pull 850. A minor annoyance.
Build quality is acceptable, looks weaker then it really is, mine has been shipped around the world and back and survived. Only issue is the volume knob has some some slop if pulling outwards, which does give a cheapish feel but doesn't affect performance, probably an easy fix. Also after 12yrs. of ownership the balance control needs to be cleaned, if adjusted, it snap crackles and pops.

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Audio Research, PS Audio, Carver crap.

Good overall build quality and sound (remember that it doesn't a college education). 2 tape loops. good tuner section

a bit bright

Had this product since new back in late '94. Haven't had a single problem with it in the past 11 yrs. As mentioned it is a bit bright, but as with all products it needs to be partnered carefully. Tuner section is excellent. Highly rate this product for the price, especially @ what you can get them off e-bay.

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many... presently at naim 92R

Tuner,price for these units on ebay,lab outputs,phono input

No digital input for CD

Sound quality is acceptable for the price I paid for the unit.The tuner is better than I expected it to be and a cut above the tuner in the Yamaha receiver in my A/V main system.I don't belive you would wnt to match this pre up with a brght sounding speaker.I've paired it with Celestion DL-8'sand Ohm Walsh 2's and it sounded fine.

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Various receivers,no previous preamp only.

Build quality...Remote...seperate listen/record functions...lovely sound characteristics...inexpensive for the amount of sound it delivers...excellent S/N Ratio for the Tuner section

N/A

I have had this preamp/tuner since the early 90's w/o so much as a hic-up of a problem. I matched this with my Proton AA-1150 DPD amp and they make beautiful music together. Maybe I like high-highs, but this is one of the best products to come from Adcom. The last guy must have received a damaged/sub-par unit or has an extremely silver-spoon taste. Paired with my JBL L-100's, this system is the envy of my friends. No-nonsense great music.

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Adcom 565 & Nakamichi CA-101

None.

Sound quality.

In my studio I use a set of Genelec 1037 audio monitors. Usually the output of my mixer is the source material for the Genelecs. I like to listen to recorded music on the monitors, but getting up to adjust the volume was getting a bit annoying so I've been shopping for a remote controlled preamp. I don't know much about consumer audio products, but I thought Adcom would be okay for casual listening. Seriously, how bad could it be? I can't really comment on the tone controls (everything disabled - clean as possible), the tuner, or the phono preamp. I needed the GTP-500 II to do one thing: attenuate a line level signal via remote control. That's it. It completely blows. As soon as I patched it in, the high end was extremely harsh and the lows basically disappeared. I auditioned all sorts of source material and everything uniformly sucked. A/B tests with my standard monitor section on my mixer and passive attenuator confirmed just how much the Adcom was screwing up the audio. Unbelievable! Maybe you're supposed to pair it with an amp & speakers that 'complement' the output of the preamp, but that seems rather retarded. How difficult is it to pass a clean signal? Total, complete garbage in my opinion. Not worth the $150 I paid for it.