home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.audio
- Path: sparky!uunet!mnemosyne.cs.du.edu!nyx!tlode
- From: tlode@nyx.cs.du.edu (trygve lode)
- Subject: Re: speaker phasing
- Message-ID: <1993Jan23.001907.6524@mnemosyne.cs.du.edu>
- Sender: usenet@mnemosyne.cs.du.edu (netnews admin account)
- Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
- References: <1993Jan21.203132.15782@microplex.com> <C18Fow.38w@world.std.com>
- Distribution: na
- Date: Sat, 23 Jan 93 00:19:07 GMT
- Lines: 21
-
- In article <C18Fow.38w@world.std.com> DPierce@world.std.com (Richard D Pierce) writes:
- >In article <1993Jan21.203132.15782@microplex.com> fff@microplex.com (Fred Fierling) writes:
- >>Do speaker manufacturers follow a standard for speaker phasing and terminal
- >>colours? In other words, if the red terminal is made positive with respect
- >>to the black can you assume the speaker cones move in the same direction
- >>regardless of manufacturer?
- >
- >As a general rule, yes. There are also explicit and de-facto standards
- >that say a positive voltage applied to the positive terminal of a driver
- >will cause the cone to move outwards.
-
- Hmmmmm...I was under the impression that it wasn't nearly so universal
- a standard. Since it's fairly common for the tweeter of a two-way system
- to be wired with a polarity that's the reverse of the woofer, this gives
- the manufacturer the choice of which driver should move outwards when a
- positive voltage is applied to the red terminal; usually they pick the
- woofer (which seems sensible to me anyway) but not always--the Apogee
- Stage, for example, is wired the other way around with the woofer
- "backwards."
-
- Trygve
-