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PEMA Models

4125

8125

4250

8250

Continuous Average Power: Output Per Channel, Low Z Models, Stereo 

Mode, 20Hz–20kHz, 1%THD, All Channels Driven
4 Ohms

125W

125W

250W

250W

8 Ohms 

75W

75W

150W

150W

Low Z Output: Bridge Mode, 20Hz–20kHz, 1% THD, All Channels Driven
8 Ohms 

250W

250W

500W

500W

70V, 100V Distributed Output: 20Hz–20kHz, 1% THD, All Channels Driven
70V (per channel)

125W

125W

250W

250W

100V (per channel)

125W

125W

250W

250W

Line Current Draw: 120V, All Channels Driven
Standby Mode

190mA

290mA

190mA

290mA

Idle (no signal)

590mA

565mA

540mA

565mA

1/8 Max Power, Pink Noise, All Channels Driven
Typical

1.70A

2.78A

2.85A

5.0A

1/3 Max Power, Sine Wave, All Channels Driven
Maximum

3.72A

5.78A

3.00A

5.50A

Thermal Dissipation: BTU/hr, All Channels Driven
Standby Mode

46.7

63.8

46.7

63.8

Idle (no signal)

123

187

123

187

1/8 Max Power, Pink Noise, All Channels Driven
Typical

232

444

341

700

1/3 Max Power, Sine Wave, All Channels Driven
Maximum

251

481

378

775

Signal to Noise
20Hz–20kHz, Unweighted >102dB 

>102dB 

>105dB

>105dB

PEMA™ sets a new industry benchmark for value-engineered 

zone sound systems. By seamlessly merging our powerful, 

open-architecture DSP functionality paired amplifier per-

formance inside a two-rack space unit, PEMA lowers overall 

system cost, occupies less space, improves energy efficiency, 

and both speeds and simplifies system installation and  

programming. Four and eight amplifier channel versions 

are available at both 125 and 250 Watts per channel.  

Full 96kHz performance is available on 32-bit SHARC  

processors for utterly transparent audio.

PEMA changes the way consultants and integrators approach 

sound system design. With only the addition of input sources 

and output speakers, PEMA delivers an elegant solution with 

less cabling, less rack space, and less installation time, using 

proven DSP and amplifier technology that will awe clients 

with its simplicity, sophistication, and reliability.

In addition to DSP algorithms such as ambient noise compen-

sation, advanced automatic feedback suppression, automatic 

mixer, and a full complement of filters, EQs, delays, and the 

like, PEMA offers DSP control of the amplifier functionality 

as well: selection of bridge-mode operation, HPF settings for 

constant voltage system networks, stereo-linking of channel 

pairs, MIC/LINE/TEL-PAGE functions on channel 1, full control 

of ducking priorities, and full-range remote-gain control 

capability.

PEMA’s I/O count and formats are ideal for small to mid-sized 

installations. Each variant has eight balanced input channels 

that are software selectable for mic or line levels. The first 

channel may also be set for a transformer isolated, TEL-PBX 

level. Additionally there are eight pairs of summed-mono RCA 

connectors optimized for consumer line level devices. Eight 

preamp auxiliary outputs allow integrators to route  

signals from the matrix mixer to anywhere the system  

requires. 

As a member of the respected Protea™ DSP lineage, 

PEMA is remarkably easy to program and deploy. All set  

up is accomplished using standard 10/100 Ethernet  

protocol and our Protea™ ne Software on a PC platform.  

Hot-plug DSP placement allows users to insert any function 

into any channel block, even when running live audio.  

Automatic DHCP network IP configuration reduces network 

set up time. Lockable front panel controls and multi-level  

software security with password access guarantee a tamper-

proof audio system.

PEMA Features:
• CobraNet® and Dante® network audio fully supported 

• 8-in x 8-out sophisticated matrix mixing

• 8 built-in mic pre’s

• Gain sharing automatic microphone mixing (Automixer)

• Automatic feedback suppression

• Ambient noise compensation

• Dedicated telephone/PBX input

• Dual RCA and balanced euroblock inputs

• Post DSP AUX line level outputs

• Stereo summed to mono

• Event scheduling (RTC)

• Adjustable HP/LP filters

• Built-in pink/white noise & sine wave generator

• Full suite of Ashly Protea™ DSP

• Hot-plug DSP placement

• 96kHz or 48kHz sample rate

• 32-Bit SHARC DSP

• 24-Bit A/D–D/A audio resolution

• 15V phantom power for mic inputs

• Full control using Ashly software over 10/100 baseT Ethernet

• Easy and intuitive user interface

• Automatic DHCP network IP configuration

•  Euroblock connectors for preset recall, DC remote level  

control and serial data control

•  External control via Ashly standard wall remotes, Ashly  

Ethernet wall remotes or Ashly Remote iPad® App

• Level control via variable DC control voltage

• Stand-By mode activation via contact closure

• Multi-level Security 

•   Safety/Compliance: 

c

TUV

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, CE, FCC, RoHS

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4250

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8125

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8250 

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Front Panel LED Indicators

Unit Status

POWER

Blue

Switch: On, Off

STANDBY

Yellow

Standby, flashing

PROTECT

Red

On, Off

DISABLE

Yellow

On, Off

COM

Green

On, for Ethernet data or Device ID

Each Channel 

SIGNAL LEVEL

Red

Clip/Mute

Yellow

-6dB

Green

-18dB, -12dB

BRIDGE

Green

Per Channel

TEMP

Yellow

Per Channel

CURRENT

Green

Per Channel: Proportional to output

70V Rated

100V Rated

5-Year Warranty

Hand-built in 

Webster, NY 

Ashly Audio, Inc.

847 Holt Road 

Webster, NY 14580 USA

+1-800-828-6308 US toll free 

+1-585-872-0010 tel 

+1-585-872-0739 fax

[email protected] 

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[email protected] 

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www.ashly.com 

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© 2014 All features, specifications and graphical representations are subject to change or improvement without notice. 

Ashly Audio is a division of Jam Industries, Ltd. DS-1 1213

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