From: system@bonzai.enet.dec.com (Bob Welch)
Newsgroups: rec.audio
Subject: a/d/s 6 channel amp?
Keywords: amp surround a/d/s
Date: 26 Jan 93 21:16:41 GMT
Reply-To: welch@harpo.enet.dec.com (Bob Welch)
Organization: DEC



    As a fancier of computer art (music and video), I find that I
    greatly enjoy watching/listening to compilations of these works on
    laser disks that have resently become widely available.  Many of
    these LDs have Dolby encoded sound tracks.  In the interest of
    achieving a more dynamic presentation of these works (max 'gork'
    factor),  I am looking to increase my current surround sound
    systems amplification capabilities.  

    Briefly, my current configuration is based on a Pioneer VSX D1S
    pre-amps/amps along with a 100 WPC power amp (for AR sub-woofer). 
    My speaker system is comprised of Definitive Technology BP10s and
    a C1 (CLR/1000 on order) up front, BP2s in the rear.  I've
    augmented this basic 5 channel set-up to provide quasi 7 channel
    ambience with a pair of Acoustat 2+2s and a Trans Nova up
    front/side but that is another story.  I like the DS1 A/V
    switching and signal control capabilities and intend to retain it
    for the near term.  However, as I said, I would like to upgrade to
    amplifiers with more 'punch' than the D1S can now provide.  My
    system is set-up in a 28 x 16 room with an 18 foot cathedral
    ceiling (in a 3000 sq ft open contemporary home).  I can achieve
    desired volume levels in this environment but would like to do so
    with a bit more 'authority'.

    So...I have briefly auditioned an a/d/s 6 channel bridgeable power
    amp that appealed to me - nice power handling, modular design,
    right price - but alas, it is no longer at my disposal to 'touch
    and feel'.  I believe that it was in essence 6 100 WPC mono amps
    stacked one atop another.  If so, I would like to configure it
    bridged as (3) 200 WPC x 1 (across the front).  I would then use
    the 135 WPC x 2 D1S mains for the rear channels and continue to
    drive the Onkyo Integra from the D1S sub-woofer output.  BTW: As
    this output is a 200 hz low-pass I feed it through a passive 150
    hz crossover to achieve a lower (but not low enough for my liking)
    sub-woofer drive signal.  I would like my new 'front' amp
    configuration to include a variable low/high-pass crossover
    centered around 80 hz...it seems that I read about such a
    multi-channel amp somewhere lately.   

    Anyway, I believe that the a/d/s nomenclature was PH6 or some
    such...  Anyone out there have any additional information -
    specifications, possible mail order sources, et al?

    Any other suggestions in the way of power amplifier choices that
    would give me a decent ~200 WPC 'high current' source for the
    BP10s (can get down to ~5 ohms) and CLR/1000 for ~$1500 or maybe
    even less :-) :-)?  Thanks in advance /bob

--
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 Bob Welch, DEC Stow       || 40 Old Bolton Road, Stow MA 01775.1215   
 mailstop OGO1-1/G18       || 508.496.9124
 fax: 508.496.9929         || Internet: welch@harpo.ogo.dec.com
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Newsgroups: rec.audio,rec.video