Steve Stone wrote:
> My 3ooM has the base, 250 watt Infinity system. (I think it was 250
> watts) There was a higher output system available as an option.
From the LHS/300M/LH service manual:
DESCRIPTION AND OPERATION / AUDIO SYSTEMS
There are four different system combinations available on the LH models.
They are a Base, Midline, Infinity l, and Infinity ll system.
BASE SYSTEM
The Base System includes:
² AM-FM stereo radio with cassette player.
² Two 6.5 inch round, full-range speakers in the front doors.
² Two 6 x 9-inch, full-range speakers mounted in the rear shelf panel.
MIDLINE SYSTEM
The Midline System includes:
² AM-FM radio with cassette player.
² AM-FM stereo radio with CD/cassette.
² A compact 120 watt power amplifier with four output channels.
² Two 2.5 inch, round single-cone speakers in the lower front corners
of the front door windows.
² Two 6.5 inch, round single-cone speakers in the front doors.
² Two 6 x 9-inch, coaxial speakers mounted in the rear shelf panel.
INFINITY l SYSTEM
The Infinity l System includes:
² AM-FM stereo radio with cassette player and 4 disc in-dash CD
changer.
² AM-FM stereo radio with CD and cassette player.
² A 240 watt Infinity power amplifier with six output channels
² One 2.5 inch, round single-cone, spatial imaging speaker in the
center of the instrument panel.
² Two 2.5 inch, coaxial speakers in the lower corners of the front
door windows.
² Two 6.5 inch, round single-cone speakers in the front doors.
² Two 6 x 9-inch, single-cone speakers mounted in the rear shelf panel.
INFINITY ll SYSTEM
The Infinity ll System includes:
² AM-FM stereo radio with cassette player and 4 disc in-dash CD changer.
² A 360 watt power amplifier with nine output channels, one for each
speaker location.
² One 2.5 inch, round single-cone, spatial imaging speaker in the center
of the instrument panel.
² Two 2.5 inch, coaxial speakers in the lower corners of the front door
windows.
² Two 6.5 inch, round single-cone speakers in the front doors.
² Two 6 x 9-inch, single-cone speakers mounted in the rear shelf panel.
² Two 2.5 inch, round speakers mounted in the rear doors.
=================
So basically, do you / we have speakers mounted in the rear door
panels. Off hand - I don't know if I have those or not.
Also from the manual - a table showing speaker impedances:
MIDLINE 2.5” FRONT OR WINDOW SPEAKER 13 - 16 OHMS
INFINITY 2.5” FRONT OR WINDOW SPEAKER 3 - 5 OHMS
MIDLINE - ALL OTHER SPEAKERS 6.5 - 8.5OHMS
INFINITY - ALL OTHER SPEAKERS 2 - 3 OHMS
According to a diagram, the rear door speaker is located immediately
infront of the inside door handle.
There's no drawings showing the speakers themselves.
> The size is "standard". 6 1/2 inch round speakers are easy to come
> by. 2 ohm speakers that can handle that bass output are a bit
> harder to find, unless maybe you check out a local music shop
> that handles guitar amps.
I think that it's no big deal to use 4-ohm speakers. Impedance is
usually a function of frequency - so you're not going to find any
speakers that have a flat impedance profile anyways.