Adding a phono stage component ? Advice needed


Would like to venture into vinyl but my current preamp doesn't have a phono stage. Could a second preamp be used solely for the phono stage? Currently using the amps balanced output to the preamps balanced input. Could the amps unbalanced outputs be run to another preamp for phono stage use? Current system consists of:
Adcom GFA-5802
Adcom GFP-750
Adcom gcd-750
zenieth

Showing 4 responses by subcoolman

Hey Zenieth- what did you end up doing? Audioman4 gave you some great advice, what with the Needle Doctor recomendation and all. Personally, I've got it good 'cuz Jerry Raskin himself helped me out when my old Adcom system (since replaced) needed similar help. I had a GFA555II (?) a few years ago, and hated the sound from the internal phono preamp. You could actually hear the fuzz and static come out of the speakers when you turned it to the phono input (and don't bother turning it up, either!) I sent it to Adcom to have the phono section jumped out, and then I visited the good doctor at his shop (I'm local). He damn near talked my ear off, but I learned a hell of a lot! When all was said and done, I left with a dedicated phono preamp that is easily adjustable for different stylus', didn't cost an arm and a leg, is dead quiet, and fits my system. For your Adcom setup, which is better than mine was, you could get very good results with a seperate phono preamp, and you don't have to pay alot to get great sound.

I can't recommend Jerry Raskin/ The Needle Doctor highly enough. If you still haven't done anything, or are still just thinking, check him out.

'Nuff said.
As per above... "You will note that phono preamps are very expensive..."

I wonder what south_park considers to be "very expensive". Everything is relative, and reasonably good, quiet, entry-level phono preamps can be purchased new for around $300, plus or minus (and obviously used ones would be cheaper). Try to find a preamp with a decent phono stage for that price.

If you, Zenieth, have another preamp to use, then sure, go for it. But don't purchase another preamp just for this exercise.

By the way, I wouldn't recommend using both inputs on your amplifier at the same time. I may have misread your original question, in fact I'm still not certain what your intentions are, but if your plan is to use both the XLR and the RCA inputs on your amp, driven by seperate preamps, bad move.
One thing I can help you with now is to suggest you stay away from the Rotel. I tried one myself in my old Adcom setup (which was a GFP555II, not a GFA..) and found it to be too noisy. For instance, when I turned my preamp to the input served by the Rotel, I heard hiss, noise, and static, although at a low level. If I turned the volume up, things got worse. Sorry, I don't remember the model number- I only loaned it from HiFi Sound in Mpls (nice guys!) for the weekend, and that was enough. Went straight to the Jerry Raskin/ the Needle Doctor, which was about 6 miles away, and ended up spending about $300 for an Acurus P10. Not sure if they are made any longer, and while they aren't the "last word" in phono preamps, it's good enough for me. This is not a recommendation- it's just the best I could afford back then, but it may be worth noting that out of all my equipment, this phono preamp is the only thing left untouched in the last few years. Thanks, Jerry!

There's a recommendation- call Jerry Raskin, or at least check his site at www.needledoctor.com.

At the time of that purchase I had a Planar3, which I really liked. In fact, I liked it so much I traded up to a P25 like yours about 2 years ago. I've got three different stlus'- Shure v15, Sumiko Blue Point, and a Blue Point Special, which I change out to suit my moods, and like almost all decent phono preamps, I can change the loading on the P10 to match each particular stlus (more on this below).

As per your cartridge choices, I have no history with either one, but have heard good things about both on a P25. I do, however, know a guy on Audiogon who has experience with a Dynavector, and last I heard was considering the Rega, I think mainly because he figured the Rega stylus was engineered to work perfectly on a Rega table. I'll see if I can get him to say some words on your thread.

Here's another thought. The Rega is a moving magnet design, like my old v15, and I don't know what the Dynavector is, but I found moving coils to be too bright with my Adcom. It wasn't until I bought a Sonic Frontiers Line1 preamp that I could live with moving coils. I only keep the v15 around for a few specific albums.

Also, if you think you will ever want to change out your cartridge/ stylus, be certain you get a pre- that will let you change the loading to suit BOTH MM's and MC's.

Only other thing I can say, and this is from first-hand experience- you might want to shy away from Grado's. I wanted to hear the famous "Grado sound" on my P25 so I borrowed a Grado Sonata from a friend, and I heard the slight rumble that everyone talks about (yes, even with a P25). Once you know it's there, you won't be happy.

Sorry I rambled a bit. I think it was Shakespeare who said, "Brevity is the soul of wit". If this is true, I must be as dumb as a stump.

Best of luck.

Jim
Hey, one last idea (man, I gotta get a life- this flu is killing me!).

You mentioned earlier that you were looking for a phono pre- in the $500-$600 range. Why not start another thread asking just this exact question, particularly from people with your equipment? I think it would be interesting, as well as very helpful.

Just a thought.

Jim.