Manual
The modes DUAL/Stereo or PARAL-
LEL/Mono can be selected via the Input
Routing Switch. Furthermore, the PRECISI-
ON SERIES power amplifiers can also be
operated in “Mono Bridged” mode. The front
panel accommodates the dB-calibrated input
Gain controls which are designed as espe-
cially precise and safe-to-operate detented
potentiometers. The LED display provides
information about the power amplifers’ ope-
rating status. For the two channels, they
demonstrate readiness to operate, whether
there is a signal at the input or output, when
the Limiters have been activated and whether
one of the protective features has been
triggered. The power outputs Channel A,
Channel B and Bridged Out are available on
Speakon connectors. The rear side of the unit
accommodates the ON/OFF switches for the
integrated Hi and Lo cut filters, a groundlift
switch which separates the housing from the
circuit ground thus helping to prevent hum
loops and the operating modes selector to
mono bridged operation. They also feature
extremely quiet fans with front-to-rear airflow,
facilitating operation in large and narrow
amplifier racks.
# SERVICE INFORMATION
WARNING: No user serviceable parts inside.
Extremely hazardous voltages and currents
may be encountered within the chassis. The
servicing information contained within this
document is only for use by Electro-Voice
Authorized warranty repair stations and qua-
lified service personnel. To avoid electric
shock DO NOT perform any servicing other
than that contained in the Operating instruc-
tions unless you are qualified to do so.
Otherwise, refer all servicing to qualified
service personnel.
NOTICE: Modification to Electro-Voice pro-
ducts is not recommended. Such modificati-
ons shall be at the sole expense of the
person(s) or company responsible, and any
damage resulting therefrom shall not be co-
vered under warranty or otherwise.
#.1 ELECTRO-VOICE UNIFORM LIMITED
WARRANTY STATEMENT
Electro-Voice products are guaranteed
against malfunction due to defects in materi-
als or workmanship for a specified period, as
noted in the individual product-line state-
ment(s) below, or in the individual product
data sheet or owner’s manual, beginning with
the date of original purchase. If such malfunc-
tion occurs during the specified period, the
product will be repaired or replaced (at our
option) without charge. The product will be
returned to the customer prepaid. Exclusions
and Limitations: The Limited Warranty does
not apply to: (a) exterior finish or appearance;
(b) certain specific items described in the
individual product-line statement(s) below, or
in the individual product data sheet or owner’s
manual; (c) malfunction resulting from use or
operation of the product other than as speci-
fied in the product data sheet or owner’s
manual; (d) malfunction resulting from mi-
suse or abuse of the product; or (e) malfunc-
tion occurring at any time after repairs have
been made to the product by anyone other
than Electro-Voice or any of its authorized
service representatives. Obtaining Warranty
Service: To obtain warranty service, a custo-
mer must deliver the product, prepaid, to
Electro-Voice or any of its authorized service
representatives together with proof of
purchase of the product in the form of a bill
of sale or receipted invoice. A list of authori-
zed service representatives is available from
MARK IV AUDIO Deutschland
Hirschberger Ring 45
D - 94315 Straubing
Postfach 0254 D- 94302 Straubing
Tel.: ++49 (0)9421/7060
Fax: ++94(0)9421/706265
MARK IV AUDIO (Europe) AG
Keltenstr. 5
CH-2563 Ipsach
Tel.: ++41 (0)32-516833
Fax: ++41 (0)32-511221.
Incidental and Consequential Damages
Excluded: product repair or replacement
and return to the customer are only reme-
dies provided to the customer. Electro-Voi-
ce shall not be liable for any incidental or
consequential damages including, without
limitation, injury to persons or property or
loss of use. Some states do not allow the
exclusion or limitation of incidental or con-
sequential damages so the above limitati-
on or exclusion may not apply to you.
Other Rights: This warranty gives you spe-
cific legal rights, and you may also have
other rights which vary from state to state.
Electro-Voice Electronics are guaranteed
against malfunction due to defects in materi-
als or workmanship for a period of three (3)
years from the date of original purchase.
Additional details are included in the Unifom
Limited Warranty statement.
#. 2 TECHNICAL ASSISTANCE
For applications assistance or other technical
information, contact the Applications Engi-
neer. You can call or write:
MARK IV AUDIO Deutschland
Hirschberger Ring 45
D - 94315 Straubing
Postfach 0254 D- 94302 Straubing
Tel.: ++49 (0)9421-7060
Fax: ++49 (0)9421-706265
MARK IV AUDIO (Europe) AG
Keltenstr. 5
CH-2563 Ipsach
Switzerland
Tel.: ++41 (0)32-516833
Fax: ++41 (0)32-511221
Specifications subject to change without
notice