Crown XFMR4, XFMR8 User Manual

XFMR

Features

The Crown XFMR-4 and XFMR-8
are rack-mountable transformers to
provide impedance matching between
amplifier outputs and “constant
voltage” loudspeakers. This unit allows
amplifiers without direct 70Vrms or
100Vrms output capability to drive
distributed speaker systems designed
to operate at those voltages.

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• Transformers provide four and eight
channels of impedance matching for
constant voltage operation

• Provides 70Vrms and 100Vrms
output when used only with Com­Tech DriveCore™ Series of amplifiers

• Allows amplifiers without direct
constant voltage capability to be
easily integrated into distributed
systems

• “Jumper” cables are provided to
easily incorporate the XFMR unit with
a ComTech DriveCore amplifier

XFMR

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XFMR-4

XFMR-8

Performance Specications

Output Connectors

Frequency Response
(at 70Hz to 15kHz)

Insertion (Core) Loss
(at 70VAC)

Max Input Levels

Physical Specications

Width

Height

Depth

Weight

XFMR-4 XFMR-8

Pluggable barrier block connectors that accepts up to

14 AWG wire

+/-1.0 dB +/-1.0 dB

≤1.0 dB max ≤1.0 dB max

32Vrms 32Vrms

19 in. (48.3 cm) 19 in. (48.3 cm)

1.72 in. (4.4 cm) 1.72 in. (4.4 cm)

15.6 in. (39.7 cm) 15.6 in. (39.7 cm)

17lbs (7.7kg) 23.6lbs (10.7kg)

Figure 1. 70V Output

Minimum 40Ω per channel

for 70V output

Figure 2. 100V Output

Minimum 80Ω per channel

for 100V output

Specifications subject to change without prior notice. Latest information available at www.crownaudio.com. Crown offers a three-year, no-fault, fully transferable warranty for every new Crown amplifier – an unsurpassed industry standard. With this unprecedented no-fault protection, your new Crown

amplifier is warranted to meet or exceed original specifications for the first three years of ownership. During this time, if your amplifier fails, or does not perform to original specifications, it will be repaired or replaced at our expense. In most cases, the only things not covered by this warranty are those

losses normally covered by insurance and those caused by intentional abuse. Plus, the coverage is transferable, should you sell your amplifier. See your authorized Crown dealer for full warranty disclosure and details. For customers outside of the USA, please contact your authorized Crown distributors for
warranty information or call 574-294-8200. © 2015 Crown Audio®, Inc.