Crest audio PL9001 SPECIFICATIONS

Power Specifications 8Ω Stereo 4Ω Stereo 2Ω Stereo 8Ω Bridged 4Ω Bridged

1kHz, 0.01% THD+N 1000W 1800W 2500W 3600W 5000W 20Hz-20kHz, 0.1% THD+N 950W 1700W 2400W 3400W 4800W

Figures are watts per channel, both channels driven.

Preliminary Product Description

The Crest Audio PL9001 professional power amplifier is designed to achieve unsurpassed sonic performance and longterm reliability – even when operating under extreme stress - in touring or fixed installation applications. The PL9001 provides high power output coupled with true clarity, and is well-suited for high-powered subwoofers and passive full range systems.

Absolute sonic accuracy is the hallmark of every Crest amplifier. Bass is solid and defined to the limits of audibility, with ample current reserves delivered by an “over-engineered” power supply and advanced Class H circuitry. Wide-bandwidth output devices assure detailed, transparent high frequency response. And, thanks to Crest’s exclusive IGM circuit, the PL9001 will drive 2Ω loads safely without compromise in performance.

Construction and Quality Control

The PL9001 is built exclusively in Crest’s own USA manufacturing facility, with internal components selected for premium quality and proven durability. Each modular subassembly is pre-tested, and once assembled, the PL9001 receives a rigorous “hot room” burn-in before thorough final pre-shipment checkout on precision test equipment.

PL9001 Features

• Crest’s legendary “overbuilt” power supply

• Toroidal power transformer

• Latest generation of high-speed, wide-bandwidth output devices

• Twin tunnel cooling with back-to-front air flow

• Dual, variable speed DC fans

• Massive, extruded aluminum heat sinks

• Balanced XLR and 1/4-inch (TRS) inputs

• 2 pair of 5-Way Binding Post Outputs

• External switches for stereo/parallel/bridged mono mode, Pin 2/3 hot (+),

ground lift, and gain/input sensitivity

• TourClass®protection circuits:

- ACL (Active Clip Limiting) prevents speaker damage with gentle gain reduction at clip threshold.

- IGM (Instantaneous Gain Modulation) monitors speaker loads to detect conditions that may overstress output devices, allowing safe operation into nominal 2Ω impedances.

- AutoRamp gradually increases gain to attenuator setting level when amplifier is turned on.

- TourClass protection also includes comprehensive thermal management, short circuit, DC voltage, turn-on/off transient, current inrush and sub/ultrasonic input protection.

• Recessed, stepped attenuators

• Front panel circuit breaker switch

• Modular construction

• Three-year warranty

4Ω Stereo PL3301 PL4601 PL6001 PL7001 PL8001

1kHz, 0.01% THD+N 250W 435W 600W 900W 1200W 20Hz-20kHz, 0.1% THD+N 200W 400W 500W 800W 1100W

Power Specs: Other PL Series Power Amplifiers

PL9001

POWER AMPLIFIER

v. 1.2 3/5/98

Crest Audio Inc.

100 Eisenhower Dr., Paramus NJ 07652 USA

TEL: 201.909.8700 FAX: 201.909.8744

http://www.crestaudio.com

PL9001 POWER AMPLIFIER

PRELIMINARY SPECIFICATIONS

1kHz, 0.03% THD+N 20Hz-20kHz, 0.1% THD+N

1000W 950W 1800W 1700W 2500W 2400W 3600W 3400W 5000W 4800W 99V 140V 20Hz-20kHz, -3dB@150kHz 20Hz-20kHz, -.2dB/+.2dB ACL, IGM, AutoRamp, short circuit, DC voltage, turn-on/off transient, current inrush, sub/ultrasonic input. <0.03% <0.01% 800:1 > - 70dB .775V standard (switchable; see table below) X115 standard (switchable; see table below) >20kΩ/>10kΩ

-115dB > - 80dB H Female XLR (pin 2+, switchable for pin 3+), TRS (tip+) 2 pair of 5-way output binding posts 144,000 µF

100V-240V, 50-60Hz

3.0A

12.0A

25.0A

36.0A 7125 BTU/hr 9450 BTU/hr Back-to-front via 2 rear panel mounted variable-speed DC fans (filters removable without tools) Front Panel: 2 attenuators; Rear Panel Switches: signal ground lift, mode select, gain select, XLR input pin 2/3 hot (+) Clip/Limit, Signal, Temp/DC, Active Steel chassis, 16 gauge. Double thickness in rack ear areas.

5.25" x 19" x 17.85" / 133 x 483 x 454mm 82 lbs. (37.23 kg.), 77 lbs. (34.96 kg.) 3 years, parts & labor

8Ω Stereo Power 4Ω Stereo Power

2Ω Stereo Power 8Ω Bridged Mono Power 4Ω Bridged Mono Power

Max RMS Output Voltage

(each channel)

Peak Output Voltage (each channel)

Frequency Response (+0 / -0.3dB, 1W/8Ω)

Power Bandwidth (rated power at 4Ω, 1% THD+N)

TourClass®Protection

THD+N

(rated power at 4Ω, 1kHz)

SMPTE IMD (rated power at 8Ω, 60Hz & 7kHz)

Damping Factor (10-400Hz at 8Ω)

Input CMRR (1kHz)

Input Sensitivity (rated power at 8Ω )

Voltage Gain

Input Impedance (balanced/unbalanced)

Hum and Noise

(“A” weighted, full power, 4Ω)

Crosstalk (“A” weighted, full power, 4Ω)

Class

Input Connectors

(per channel)

Output Connectors (per channel) (market dependent)

Filter Storage

Power Supply

(factory configured)

Idle Current Draw 120V

1/8 Power Curr. Draw

(typical music, 120V/4Ω)

1/3 Power Curr. Draw (continuous music, 120V/4Ω)

Max Curr. Draw (circuit breaker rating, 120V/4Ω)

Thermal Emissions (1/8 Power, 4Ω) Thermal Emissions (1/3 Power, 4Ω)

Cooling

Controls

LED Indicators

(per channel)

Construction

Dimensions

(Height x Width x Depth)

Gross Weight, Net Weight

Warranty

Gain Sens

Configurable Gain/Sensitivity Options Factory Standard X115 .775V

Option 1 X40 2.24V Option 2 X20 4.47V

Architect’s & Engineer’s Specifications

The power amplifier shall have two channels. At 8 ohms, 20Hz

- 20kHz, 0.1% THD+N, it shall deliver a minimum of 950 watts per channel. At 4 ohms, 20Hz - 20kHz, 0.1% THD+N, it shall deliver a minimum of 1700 watts per channel. In bridged mono mode with an 8 ohm load, 20Hz - 20kHz, 0.1% THD+N, it shall deliver a minimum of 3400 watts. The amplifier shall have circuitry to protect itself from output short circuits, thermal overload or other adverse load conditions. The amplifier shall protect speaker loads from DC voltage on outputs. The amplifier shall have active clip limiting and impedance sensing circuitry. Output relays shall protect the speakers from amplifier failure. Two rear panel mounted variable speed DC fans (filters detachable without tools) shall provide back to front air flow through the chassis. Each channel shall have a standard (factory-set) input sensitivity of .775 volt, and shall be fitted with an external switch which allows the gain to be altered to X20 or X40. The hum and noise level shall be 115 dB below rated output, “A” weighted. SMPTE IMD shall be less than 0.01% at rated power, 60Hz and 7kHz. The amplifier shall have a class H output stage. The frequency response shall be 20Hz-20kHz, +0,

-0.3dB (1W 8Ω). The amplifier will operate at 100V-240V, 50-60 Hz AC (configured at factory). Maximum current draw shall not exceed 36 amperes at 120VAC (limited by front panel breaker). Front panel indicators shall include Active, Protect, Signal, and Clip LED’s for each channel. Front panel attenuators shall be recessed and detented. Rear panel input connectors shall be female TRS, and XLR type, rear-panel switchable for pin 2 (factory setting) or pin 3 positive. Output terminations shall be 2 pair of 5-way output binding posts. Rear panel switches for ground lift, Stereo/ Parallel/ Bridged Mono mode, XLR polarity and gain selection shall also be provided. A rear-panel AC mains cord having an appropriate AC plug for the intended operating voltage shall be provided. The packaging of the amplifier shall allow for standard rack mounting without requiring space between similar units. Optional rack mount handles will be available. Dimensions shall be 19" (483mm) wide, 5.25" (133mm) high and 17.85" (454mm) deep. The amplifier shall weigh 77 lbs. (34.96 kg.) net, and shall be designated the Crest Audio model PL9001 .

Rear View

Power figures are watts per channel, both channels driven. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification.

+ +

A B

Designed & manufactured in the USA by:

Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

XLR Pin +

2 3

GAIN

40x

20x

dBu