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Old 21st October 2010, 09:48 AM   #1
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Join Date: Oct 2009
Location: Eatonville,WA 15 min. to Mt. Rainer
Default Need help please

Hello all,

I am very new to this site and to audio componets also. Have an issue and don't know how to deal with it. Here is my set up: Martin Logan SL3, Adcom GFA-555ii, Adcom GFP-555ii and Nakamichi PA-5. Is all somewhat new to me, I had the adcom stuff running some polk sda 1c. The Martin Logan sl3 and the Nakamichi PA-5 were given to me. So here is my dilema: I want to run the GFA-555ii for the lows and the Nakamichi PA-5 for the mid/highs via the Adcom GFP-555ii, bi-amping my SL3 but don't know which way is better. The adcom GFP-555ii has 2 sets of pre-out one is direct coupled and the other is capacitively. So far without bi-amping at all both amps sound way better via the capacitively(main) output, because I can control the bass and trebel to my liking. The straight(bypass) output sounds fine, but is kinda flat. So for me to take advantage of the bass and treble adjustment the tone in on my pre-amp has to be pushed in or depressed, however doing so will invert the polarity on the main output. My option 2 is to run some y connectors to my main output. I am soooo confused, please help

Thanks, Carlos
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Old 22nd October 2010, 08:07 PM   #2
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Join Date: Jul 2005
Location: D-55629 Schwarzerden
start a new thread with the same question but follow title for the headline:

Biamping - Adcom GFA-555ii and Nakamichi PA-5 connect to Preamp GFP-555ii - how ??
With your choiced title "Need help please" nobody knows the actually topic without open the thread and detail reading.
Because your Nakamichi PA5 was developed from Mr. Nelson Pass (Stasis topology - as I know) you can filed your new thread about
http://www.diyaudio.com/forums/pass-labs/

here some photo URLs about your devices:
Nakamichi PA-5 Stasis stereo power amplifier
http://www.stateofgrace.net/polk/555_top.jpg
Adcom gfa 555 ii - Search Results
Imageshack - img0567.jpg
http://resolute-av.com/adap1.jpg

Last edited by tiefbassuebertr; 22nd October 2010 at 08:10 PM.
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