Audioplex MATCHIT SERIES Installation Manual

MATCHIT 200/300/600 (TM) IMPEDANCE CORRECTOR
The MATCHIT (TM) is a high quality, reasonable cost device that solves the problem often encountered when
the speakers you wish to use have a lower impedance than your amplifier can accommodate. It employs a tri-filar
wound transformer with taps which allow selection of the desired impedance to the amplifier while maintaining a
flat frequency response for optimum sound reproduction.
As provided, the MATCHIT (TM) doubles the impedance of the speaker as seen by the amplifier; a 6 Ohm
speaker will appear as 12 Ohms to the amplifier, or a 4 Ohm speaker will appear as 8 Ohms. This means that any
speaker presently on the market can be used safely with any amplifier or receiver, including those that cannot
normally operate with any speakers of lower than 8 Ohms impedance.
Since a transformer is used to achieve a safe impedance load, there is no heat or power loss in the use of the
MATCHIT (TM). There is a 3 dB level drop to the speaker, but no amplifier output is wasted as heat.
The MATCHIT (TM) is very small, only 2 1/2" long and 1 1/2" wide and 1 1/2" high. It has 2-screw connectors
at each end, and mounting holes for convenient mounting. It can be located at the amplifier output or the speaker
input terminals, or anywhere between, as convenient. One MATCHIT (TM) is required for each speaker channel.
Power rating Peak Watts: 216, 300 or 600 watts. RMS Rating: 72, 100 or 200 Watts. The MATCHIT (TM) is
factory wired to double the speaker impedance; adjustable taps are provided to multiply the speaker impedance by 4,
8, or even 16 times if needed to parallel multiple pairs of speakers across the amplifier output.
NOTE: After soldering is complete, please install the self adhesive foam sheet to the back of the circuit board.
This will eliminate the possibility of accidental short circuits.
Your AUDIOPLEX TECHNOLOGY Matchit (TM) is covered by a Lifetime warranty against any defects in
workmanship and materials. Any defects will be remedied without charge for labor or parts.
Damage incurred by shipping or accident is not considered to be a defect, and not covered by this warranty.
AUDIOPLEX TECHNOLOGY, is not responsible for defective operation caused by abuse or by modification or
service by any unauthorized person or agency.
The unit must be properly installed and operated according to instructions for the warranty to apply. Any
necessary servicing must be done by AUDIOPLEX TECHNOLOGY. The unit must be returned expenses prepaid,
with written authorization from the company. The product must be shipped with the proof of purchase and in the
original carton and packing material to avoid damage.
This warranty gives you specific legal rights. You may have other rights which vary from state to state.
INSTALLATION MANUAL
TECHNOLOGY
WARRANTY
(Patent Pending)
2000 - 10/4/00