2. amps-preamps
  3. 1041537295

Experience with Audio Research SDP-1

Looking for anyone with experience, pro or con, with using the Audio Research SDP-1. The SDP-1 was Audio Research's attempt at pseudo-surround sound. It synthesized rear and center surround channels and was available in the mid to late 90's. I borrowed one from a fellow audiophile and have had mixed results. When the source material is right it sounds good, but with some material the rear surrounds (I'm not using the center channel) have what sounds like a high distortion level. This is especially noticeable when playing a mono source. While the sound is intriguing, the occasional distortion and added complexity to the system makes me cringe!
pmotz
alexanderj
139 posts
 
You might want to check with ARC support. I believe the device required a stereo signal to work at all.
brauser
525 posts
 
Personally, I'd leave it alone. 5.1 + systems are great for video and 2 channel can take you all the way there for audio. The SDP-1 unit is akwardly in the middle.
jafox
1,457 posts
 
I disagree with Brauser. The SDP1 is a great product for driving a pair of rear speakers for audio only. I would not want a HT preamp/processor to botch up what I worked so hard to attain for my front channels. And the rear channels with the SPD1 make for an incredible listening experience. I never did try with a center speaker.

Due to the changes in my room and system, I will soon part ways with my SPD1 but it has been a wonderful product.

John
warjarrett
105 posts
 
Four years after this short thread started, I aquired and am now enjoying an ARC SDP-1. I am strictly a 2-channel audio enthusiast: LP records, Vacuum tubes and electrostats. But adding 2 more channels of delayed sound did increase the realism of my system. Just adding the SDP-1, 2 small rear channel speakers (Athena), and an Amber amp (that I've had for 15 years) made a dramatic improvement in the realistic presentation of a live event in my living room. I cannot detect any degradation, only improvement.
More to discover