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- Newsgroups: rec.audio
- Path: sparky!uunet!utcsri!skule.ecf!torn!nott!bnrgate!bmerh85!bnr.ca!stud1b53
- From: stud1b53@bnr.ca (Anshu Prasad)
- Subject: Re: Surround Sound -- Front-to-Back ratios?
- Message-ID: <1992Nov18.153330.4873@bmerh85.bnr.ca>
- Keywords: Surround Sound Pro Logic
- Sender: news@bmerh85.bnr.ca (Usenet News)
- Reply-To: stud1b53@bnr.ca
- Organization: Bell-Northern Research Ltd.
- References: <Bxw3MK.K2I@world.std.com>
- Distribution: na
- Date: Wed, 18 Nov 92 15:33:30 GMT
- Lines: 55
-
- In article <Bxw3MK.K2I@world.std.com>, bobsoron@world.std.com (Bob Soron) writes:
- |> I'm in the market for a Pro Logic receiver. I know I need to check that
- |> the center channel is the same as the two rear channels.
-
- I believe you have this wrong. The center channel power should be
- the same as the two FRONT channels, NOT the surround channel. The
- relationship between the center and surround channels is not nearly
- as important in the overall performance/quality/sound experience of
- a home theater.
-
- |> But there's a
- |> wide disparity among the front-to-back output of these things. Some of
- |> them are 100/100/10/10/10, and some are 80/80/20/20/20. I gather that would
- |> be a noticeable difference.
- |>
-
- The two amplifier configurations you mention are not very good.
- Something on the order of 80/80/80/25/25 is much better because the
- center power matches the left/right mains. The next step is to match
- the speakers themselves...
-
- |> Obviously, there's a lot of other factors, like the room size (pretty
- |> small in this case, perhaps 9' x 12'), but I'm wondering what's better
- |> in the general case -- a smaller or larger ratio?
- |>
-
- In the general case, my personal opinion is a smaller ratio is better.
- I happened to see, but not audition :-(, a $10,000+ THX approved system
- that amplified ALL channels to 250 watts. Of course, you can compensate
- for power disparity (moderately) by adjusting speaker position and seating
- position in the room, and then fine tuning the output levels of each of
- the channels using a built-in pink noise generator. In the absence of
- that, you can use the laser disc LD-101: A Video Standard, which includes
- a chapter on surround sound calibration and speaker set-up.
-
- |> Thanks for any & all info. If anyone out there owns one of these suckers
- |> and wants to contribute reviews, I'm Ross Perot. :-) My budget's around
- |> $400.
- |>
-
- There are numerous a/v amplifiers in your price range. Look into
- Yamaha and Denon, in particular. They're the best I've heard for under
- $2000.
-
- |> Bob
- |> bobsoron@world.std.com
- |> "With Velcro, gravity is obsolete" -- Mister Boffo
- |>
-
- --
- __ ___
- /\ \ \ \ Anshu Prasad stud1b53@bnr.ca
- /--\ \/_/ Ottawa, Ontario, CANADA
- /_/ \_\ All opinions are my own, not my employer's, BNR Ltd
-
-