Electro-Voice Precision P1200 - User Manual

P1200
Precision Series
TM
Power Amplifier
• 370 watts per channel
at 8 ohms, 550 watts per
channel at 4 ohms, 650
watts per channel at 2 ohms
• Compact, two-rack-space
chassis
• Neutrik Speakon
®
output
connectors allow use of
heavy-gauge speaker wire
for low-loss connections
• Three-year parts-and-labor
warranty
SPECIFICATIONS
Conditions:
1. 0 dBu = 0.775 V rms.
2. Dual-mode ratings are for each channel,
both operating, unless noted.
3. 120-volt ac line voltage maintained
throughout testing.
Continuous Rated Output Power (20-
20,000 Hz at less than 0.1% THD, both
channels driven per EIA RS-490),
Dual Mode, 2 Ohms:
600 watts
Bridged Mode, 4 Ohms:
1,200 watts
Dual Mode, 4 Ohms:
500 watts
Bridged Mode, 8 Ohms:
1,000 watts
Dual Mode, 8 Ohms:
350 watts
Continuous Rated Output Power (1 kHz,
1% THD, both channels driven per EIA
RS-490),
Dual Mode, 2 Ohms:
650 watts
Bridged Mode, 4 Ohms:
1,300 watts
Dual Mode, 4 Ohms:
550 watts
Bridged Mode, 8 Ohms:
1,100 watts
Dual Mode, 8 Ohms:
370 watts
Power Bandwidth
(+0/–1 dB, reference 1 kHz),
Dual Mode, 4 Ohms:
20-20,000 Hz
Bridged Mode, 8 Ohms:
20-20,000 Hz
Dual Mode, 8 Ohms:
20-20,000 Hz
Frequency Response
(–1 dB, reference 1 kHz/1 watt):
10-30,000 Hz
Voltage Gain, 1 kHz, Input Level Controls
Full Clockwise, Constant-Gain Option:
1
26 dB
Input Sensitivity, 1 kHz, Dual Mode for 550
Watts into 4 Ohms:
0 dBu (775 mV)
Maximum Input Level (reference 1 kHz):
+20 dBu (7.75 V)
Input Impedance (per channel,
20-20,000 Hz), Balanced:
20 kilohms
Phase Response (at rated power, any
mode, 10-30,000 Hz):
±22.5 degrees
THD Plus Noise at 1 kHz (at rated power,
measurement bandwidth 80 kHz):
<0.01%
IMD (SMPTE) (60 Hz/7 kHz, typical, at
rated power; see Figure 2):
<0.01%
Rise Time (10% to 90% at rated power,
any mode):
<2.5 microseconds
Slew Rate, Any Mode:
>30 V/microsecond
Damping Factor, Any Mode:
>300
Amplifier Protection:
Excessive output voltage; shorted loads;
excessive phase shift; rf interference;
overtemperature; excessive back EMF;
In-rush current limiter
Load Protection:
Start-up/shutdown transients; dc fault;
infrasonic signals; low ac line voltage;
nonlinear signal limiter
Output Topology:
True complementary symmetry with
ungrounded collectors (no mica insulators
means better heat transfer)
Output Devices,
Total Number: 20 devices
P
d
(max) Rating: 250 watts
I
c
(collector current): 16 amps dc
T
j
(max): 200 °C (392 °F)
Controls and Switches,
Rear:
Hi-Lo-Cut Filter(On/Off); Bridged Mode
switch (Bridged/Normal); Limiter mode
(Fast/Slow); Circuit ⊥ To Chassis
Switch (Grounded/Ungrounded); Input
Routing (Parallel Mono or Dual Stereo)
Front:
Two calibrated input level controls;
power switch
Front-Panel Indicators:
Five LED’s per channel (10 total) for power
on, input signal; output signal; limiter
on and protect on
Connections,
Input:
3-pin female XLR-type connectors for
each channel in parallel with a 3-pin
male XLR-type output connector for
easy signal routing; the XLR connec-
tors are wired according to the IEC 268
standard: pin 1 shield, pin 2 positive,
pin 3 negative
Output:
Neutrik Speakon
®
NL4MP for channels
A, B and for bridged mode
Power:
14-gauge, 3-wire, permanently attached
power cable;
Operating Voltage:
120 V, 60 Hz ac
__________________
1. Configured for constant-gain option, all Precision Series
TM
amplifiers, regardless of power rating, have a maximum
voltage gain of 26 dB.

Summary

Specifications

Continuous Rated Output Power

Details continuous rated output power for dual and bridged modes across different impedances and THD.

Frequency Response and Bandwidth

Covers frequency response and power bandwidth specifications for the amplifier.

Protection and Limiter Features

Explains amplifier and load protection circuits and limiter functions.

Controls and Switches

Details front and rear panel controls and switches for amplifier operation.

Input and Output Connections

Details the type and configuration of input and output connectors.

Description

Amplifier Design and Performance

Overview of the amplifier's high-quality design, power delivery, and thermal management.

Protection and Limiter Circuits

Details sophisticated protection circuits and built-in limiters for speaker safety.

Input;Output Connectivity and Routing

Describes electronically balanced XLR connectors, input routing, and Neutrik Speakon outputs.

Architects and Engineers Specifications

General Amplifier Requirements

Specifies dual-channel, solid-state design, true-complementary-symmetry output, and line voltage compatibility.

Protection and Control Features

Details sensing circuitry for protection and modern limiter circuit with switchable time constants.

Performance Specifications

Lists key performance metrics including input voltage, rated output power, frequency response, damping factor, and THD.

Uniform Limited Warranty

Warranty Coverage and Exclusions

Details coverage against defects in materials/workmanship and common exclusions.

Obtaining Warranty Service

Provides instructions on how to obtain warranty service, including proof of purchase.

Electro-Voice Precision P1200 Specifications

General

Brand	Electro-Voice
Model	Precision P1200
Category	Amplifier
Language	English