Crown Audio TP-170V User Manual

TP-170V

he Crown® TP-170V is a rack-mountable
panel with autoformers to provide imped­ance matching between amplifi er outputs

T

and “constant voltage” loudspeakers. This unit
allows amplifi ers without direct 70V or 100V
output capability to drive distributed speaker
systems designed to operate at those voltages.

The TP-170V is constructed of sturdy steel, and
hinged on one side to allow easy access to the
inside connections.

For more details about the Crown TP-170V,
contact Crown Customer Service at
800-342-6939 or 574-294-8200. Also, visit the
Crown Audio website at www.crownaudio.com.

Specifi cations

Output connectors: One fi ve-pole terminal strip

per channel with touch-proof cover. Accepts up
to 10 AWG terminal forks.

Frequency Response: +/- 0.5 dB (20 Hz to 20
kHz).

Insertion (Core) Loss: 0.41 dB max (70VAC at
50 Hz).

Dimensions:

19 in (48.3 cm) wide (including hinge)

7.23 in (18.4 cm) high

1.45 in (3.7 cm) deep.

Weight: 12.75 lbs (5.78 kg).

CONSTANT-VOLTAGE TRANSFORMER PANEL

Features

• Four autoformers per panel provide four channels of impedance matching for Constant-Voltage opera­tion

• Provides 100V output in Dual mode when used with CTs 600, CTs 1200, CTs 4200 and CTs 8200 ampli­fi ers

• Allows amplifi ers without direct Constant-Voltage capability to be easily integrated into distributed
systems

• Convenient hinged rack mounting allows easy access to connections

Installing the TP-170V

CAUTION: Before you begin, make sure your
amplifi er is disconnected from the power
source, with the power switch in the “off”
position and all level controls turned com­pletely down (counterclockwise).

Use a standard 19-inch (48.3-cm) equipment
rack (EIA RS-310B) to install the TP-170V.

Connect the Grounding Strap

Connect the TP-170V grounding strap to a rack
rail or rack ground, and be sure the rack is
grounded to an AC mains safety ground. (Test
the AC mains ground to make sure it is reli­able). If you are not using a rack, be sure to
connect the TP-170V grounding strap to an AC
mains safety ground and mount the unit in a
metal box for safety. Insulate the TP-170V from
the box.

CAUTION: Do not remove the grounding strap
or leave it unconnected.

Choose Output Wire and Connectors

Crown recommends using professionally con­structed, high quality, two- or four-conductor,
heavy gauge speaker wire and connectors. You
may use terminal forks or bare wire for your
output connectors. The TP-170V terminal strips
accept up to 10 AWG terminal forks which fi t
over a #8 screw.

CAUTION: Use insulated terminal forks to pre­vent shorting against the touch-proof cover
plate.

To connect TP-170V outputs, fi rst remove the
touch-proof cover plate covering the output
terminal strip by removing the three screws
which hold it in place. To prevent the possibility
of short-circuits, wrap or otherwise insulate
exposed loudspeaker cable and connectors.
Reinstall the cover plate.

Wire Your System

Refer to the chart in Figure 1 to determine the
proper transformer tap to use, based on the
rated output power of your amplifi er and the
desired constant-voltage of your system. Then
wire the connections as shown in the corre­sponding wiring diagram in Figs. 2 through 4.

CAUTION: Never use shielded cable for output
wiring.

Figure 1. Voltage In / Voltage Out Chart

TP-170V

Figure 2. 40V Input, 70V Output

Figure 3. 50V Input, 70V Output

Crown’s Three-Year, No-Fault, Fully Transferable Warranty

Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampli­fi er product—an unsurpassed industry standard. With this unprecedented No-Fault protection,
your new Crown amplifi er product is warranted to meet or exceed original specifi cations for the
fi rst three years of ownership. During this time, if your unit fails, or does not perform to original
specifi cations, it will be repaired or replaced at our expense. About the only things not covered
by this warranty are those losses normally covered by insurance and those caused by intentional
abuse. And the coverage is transferable, should you sell your unit.

See your authorized Crown dealer for full warranty disclosure and details. For customers outside
of the USA, please contact your authorized Crown distributor for warranty information or call
574-294-8200.

Figure 4. 70V Input, 100V Output

Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: [phone]
FAX: [phone]FAX
www.crownaudio.com

Specifi cations subject to change without prior notice. Latest
information available at www.crownaudio.com.

Crown and Crown Audio are registered trademarks of Crown
International. Other trademarks are the property of their
respective owners. Printed in U.S.A.

© 2005 Crown Audio

7/05 135054-2B

®

, Inc.