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- Newsgroups: rec.audio.car
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!scott.skidmore.edu!jreiser
- From: jreiser@scott.skidmore.edu (Jason Reiser... Asleep)
- Subject: Re: Crossover impedance
- Message-ID: <1992Nov19.215448.13606@scott.skidmore.edu>
- Organization: Skidmore College, Saratoga Springs NY
- References: <BxyDDp.K0B@news.cso.uiuc.edu>
- Date: Thu, 19 Nov 1992 21:54:48 GMT
- Lines: 29
-
- jsc52962@uxa.cso.uiuc.edu (Jeffrey S. Curtis) writes:
- > I have two mono, two-way passive crossovers (xo pt. is 3kHz, -12dB/
- > octave). The box says that the crossovers are "8 ohms". I assume
- > that this means that to an amplifier, they appear as 8 ohm loads.
- > But how is the power actually distributed? Specifically, if I have
- > 30 watts into 4 ohms being delivered to this crossover which calls
- > itself 8 ohms, which then sends the signal to a 4 ohm woofer and a
- > 4 ohm tweeter, what power is delivered to the woofer and to the
- > tweeter?
-
- You've got the concept a bit confused...
- Actually, the crossover is not a load and as such will not have any
- particular impedance. The impedance listed on the crossover is
- instead the speaker impedance that will give standard performance of
- -12db/octave at 3kHz. If you use this with 4 ohm speakers, you will
- alter the crossover points.
- As for power delivered through a crossover, the crossover shouldn't
- absorb any power... save a small loss to heat... but if this crossover
- were wired to an 8 ohm woofer and 8 ohm tweeter via a 30x2 amp, each
- speaker would see 30 watts in the appropriate frequency range for that
- speaker.
-
- Hope that helps,
- - Jason
- --
- ---------------------------------------------------------------
- \ Jason A. Reiser \ Send E-Mail to jreiser@scott.skidmore.edu \
- \ Skidmore College \ Saratoga Springs, NY 12866 \ 518-581-6580 \
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