The pe series – Ashly PE-Series User Manual

Page 4

Page - 4

Operator Manual – PE Series Amplifiers

The PE Series

PE-Series (Protea Enabled) amplifiers are high-power, high-efficiency, lightweight
amplifiers incorporating the latest amplifier technologies. Each amplifier can be controlled
and monitored through the Ethernet port using Protea

Software™ included on the CD that

came with the amplifier (visit Ashly.com to check for software updates). Protea

gives users

access to many features, including: input attenuation, channel mute, channel polarity, input
level, output voltage, output current, clipping, temperature, and monitoring for power on/off.

The series provides a wide power range of 400 to 1900 watts per channel at 4 ohms (20Hz-
20kHz, 0.05% THD). All models will drive 2, 4 or 8 ohm loads. Each models is 2RU,
weighs 20 pounds and utilizes a state-of-the-art, efficient, high speed switched mode power
supply. DC voltage control of the input level and remote power on/off are among the many
standard features.

PE-Series Power Ratings

Stereo

Mono Bridged

Parallel-Mono

Model

3800

1,100W

1,900W

3,800W

3000

9,00W

1,500W

3,000W

2400

7,00W

1,200W

2,400W

1800

5,00W

900W

1,800W

1200

3,00W

600W

1,200W

1,300W

800

200W

400W

800W

Input connections are via XLR/TRS Neutrik Combo, and 6-pin Euroblock connectors. XLR
male connectors are also provided for looping to additional amplifiers.

Output connectors are locking Neutrik Speakon on all models (models 800 & 1200 also have
screw terminal strips with safety covers). Switches on the rear panel include: selectable High
Pass Filters, Clip Limiter, Ground Lift, Gain and Operation Mode.

Protection

PE-Series Amplifiers come standard with several protection circuits:

Clip Limiter – On overdrive the clip detection triggers the Attack-Release

Circuit delivering control voltage for gain reduction.

SOA Protection - If the power transistors leave their Safe Operation Area, the

SOA-protection switches back the current rail of the respective channel.

DC Protection - Each output is monitored for DC voltage. If thresholds are

exceeded, the corresponding channel will be muted. Minor DC occurrences
(once resolved) will return the amplifier to normal. If the DC condition is
severe the amplifier will enter standby.

DC Servo - PE-Series has a DC Servo to prevent DC Offset at the output.

Over Current Protection - Is controlled in the output stage.

Thermal Protection - When the internal temperature is below 40°C the fan

runs at its slowest speed. Above 40°C the speed is increased until it reaches its
maximum value. If the temperature exceeds 85°C, the input on that channel is
reduced. If the temperature exceeds 100°C, the power supply is switched off.

Mains Protections – protection within the power supply includes: Inrush

Current Limitation, Mains Over Voltage Detection, Mains Failure Detection,
and Fuse Protection

Important Safety

Instructions – 2

Introduction - 3

The PE Series - 4

Protection

Physical Description - 5

Installation - 6

Operation - 8

Troubleshooting - 9

Spec Table - 10

Measurements - 11

Dimensions - 12

Warranty - 13