Ashly Pema4125 User manual

PEMA Models 4125 8125 4250 8250

Connuous 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 Dissipaon: 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 funconality paired amplier per-

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

system cost, occupies less space, improves energy eciency,

and both speeds and simplies system installaon and

programming. Four and eight amplier channel versions

are available at both 125 and 250 Was per channel.

Full 96kHz performance is available on 32-bit SHARC

processors for uerly transparent audio.

PEMA changes the way consultants and integrators approach

sound system design. With only the addion of input sources

and output speakers, PEMA delivers an elegant soluon with

less cabling, less rack space, and less installaon me, using

proven DSP and amplier technology that will awe clients

with its simplicity, sophiscaon, and reliability.

In addion to DSP algorithms such as ambient noise compen-

saon, advanced automac feedback suppression, automac

mixer, and a full complement of lters, EQs, delays, and the

like, PEMA oers DSP control of the amplier funconality

as well: selecon of bridge-mode operaon, HPF sengs for

constant voltage system networks, stereo-linking of channel

pairs, MIC/LINE/TEL-PAGE funcons on channel 1, full control

of ducking priories, and full-range remote-gain control

capability.

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

installaons. Each variant has eight balanced input channels

that are soware selectable for mic or line levels. The rst

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

level. Addionally there are eight pairs of summed-mono RCA

connectors opmized 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 Soware on a PC plaorm.

Hot-plug DSP placement allows users to insert any funcon

into any channel block, even when running live audio.

Automac DHCP network IP conguraon reduces network

set up me. Lockable front panel controls and mul-level

soware security with password access guarantee a tamper-

proof audio system.

PEMA Features:

• CobraNet® and Dante® network audio fully supported

• 8-in x 8-out sophiscated matrix mixing

• 8 built-in mic pre’s

• Gain sharing automac microphone mixing (Automixer)

• Automac feedback suppression

• Ambient noise compensaon

• 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 lters

• 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 resoluon

• 15V phantom power for mic inputs

• Full control using Ashly soware over 10/100 baseT Ethernet

• Easy and intuive user interface

• Automac DHCP network IP conguraon

• 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 acvaon via contact closure

• Mul-level Security

• Safety/Compliance: TUV, CE, FCC, RoHS

pema4125

pema4250

pema8125

pema8250

pema

™

protea-equipped

media amplifier

Front Panel LED Indicators

Unit Status

POWER Blue Switch: On, O

STANDBY Yellow Standby, ashing

PROTECT Red On, O

DISABLE Yellow On, O

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: Proporonal 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

info@ashly.com u

sales@ashly.com u

www.ashly.com u

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

Ashly Audio is a division of Jam Industries, Ltd.



Note: 0dBu = 0.775 VRMS

Input Sensivity (Low Z models) 3.2dBu (4125/8125) 6.2dBu (4250/8250)

7.2dBu (70V/100V models)

Voltage Gain

26dB (Low Z models), 32dB (70V models)

35dB (100V models)

Damping Factor >250 (8 Ohm load, <1kHz)

Distoron

<0.5% (SMPTE, typical)

<0.5% (THD-N, typical, 8 Ohm,

10dB below rated power, 20Hz–20kHz)

Channel Separaon -80dB (dB from full output, 1kHz)

Frequency Response 20Hz–20kHz, +/-1dB

Mic/Line Input Impedance 4.8k Ohms

Mic/Line Maximum Input Level +21dBu

Mic/Line Preamp Gain 0, +20dB, +40dB, +60dB

Mic/Line Phantom Power +15V, switchable ch. 1-4, 5-8

Summed Mono

3.16k Ohm (

Input Impedance)

+11dBu (

Maximum Input Level)

Channel 1 TEL-PBX 3.9k Ohm (Input Impedance)

+21dBu (Maximum Input Level)

Preamp Output Maximum Level +8dBu

AUX Output Maximum Level +20dBu

pema 8250 Rear Panel

pema

™

protea-equipped media amplifier



1 Euro connector balanced input, selectable for Mic, Line or TEL-PBX

7 Euro connector balanced inputs, soware selectable for Mic or Line

8 pairs of unbalanced, summed mono RCA connectors opmized

for consumer line level (-10dBu) devices

8 Euro connector Preamp/Aux outputs

4 or 8 Euro connector speaker outputs

CobraNet® and Dante® Digital I/O opons

Weights and Dimensions

Dimensions 19”W x 3.5”H x 15.5”D (483mm x 89mm x 394mm)

Unit Weight 4125/4250: 18.5lbs (8.4kg)

8125/8250: 20lbs (9.09kg)

Shipping Weight 4125/4250: 26lbs (12kg) 8125: 27lbs (12kg)

8250: 28lbs (13kg)

Environmental 40-120 deg. F, (4-49 deg, C) (noncondensing)

Remote Accessories

WR-1 2-Channel Level Control

WR-1.5 Level and Preset Recall

WR-2 Four-Posion Switch

WR-5 Programmable Selector

neWR-5 Programmable Network Remote

FR-8 8-Channel Network Fader Remote

FR-16 16-Channel Network Fader Remote

RD/RW-8C Serial Data Fader Remote

Ashly Remote Remote Control Applicaon for Apple® iPad®

PEMA uses Neutrik®

Components

Power Requirements

AC Mains 120VAC or 240VAC, ±10%

50–60Hz

Power Cable Connector 15A Edison, 3-Prong IEC

Rear Panel

Controls

Ethernet 10/100, Channel 1 TEL-PBX

Switch, Remote Standby, Preset Recall

(4), Remote Level (8), Remote Data

Connectors (each channel) Input: Euroblock

Output: Euroblock



All DSP funcons can be linked to 1 of 16 link groups



Input Source Select Opons Analog, Auto (Net, AES3, Analog)

Brick Wall Limiter

Threshold -20dBu to +20dBu

Rao Innite

Aack 0.2ms/dB to 50 ms/dB

Release 5ms/dB to 1000ms/dB

Compressor

Threshold -20dBu to +20dBu

Rao 1.2:1 to

∞

Aack 0.2 to 50ms

Release 5ms/dB to 1000ms/dB

Detector Peak/Average

Aenuaon Bus 2 available

Metering In, Out, Aenuaon, Graphical

Autoleveler Controls

Target Level -40dBu to +20dBu

Acon Gentle, normal, aggressive, user dened

Maximum Gain 0dB to +22dB

Metering Input, Gain, Aenuaon

Rao 1.2:1 to 10:1

Threshold Below Target -30dB to 0dB

Gain Increase/Decrease Rate 5ms/dB to 1000ms/dB

Hold Time 0-6 sec

 Output Only

Max Gain -20dB to +20dB

Min/Base Gain -40dB to +20dB

Gain Change Rate 0.2s/dB to 20s/dB

Link Group 16 available

ANC Input Channel 1-4 or 1-8

Noise Threshold -40dBu to +20dBu

Program/Ambient Gain Rao 0.3:1 to 3:1

Metering Input level, Aenuaon, Average noise

High/Low Priority, Trigger, Filibuster, Ducked Program

Trigger Threshold -80dBu to +20 dBu

Ducking Release 5ms/dB to 1000ms/dB

Ducking Depth 0dB to -30dB, -

∞

Enable Ducking at Matrix Mixer

Yes

Metering Input

Gate

Threshold -80dBu to +20dBu

Range o, 100dB to 0dB

Aack 0.2ms/dB to 50ms/dB

Release 5ms/dB to 1000ms/dB

Metering Key Signal, Gate LED, Graphical

Advanced Gate Controls

Key Engage Enable Yes

Key Frequency 20Hz–20kHz

Key Bandwidth 0.016 to 3.995 Octave

Gain

Gain (with/without VCA) -50dB to +12dB, o, polarity invert

Digital VCA Groups 4 available

Remote RD8C Gain Enable per channel, 0dB to -

∞

WR-5 (neWR-5) Remote Gain 0 to -50dB, Mute

31-Band Graphic

Filter Type Constant Q or proporonal

Bandwidth 0.499oct to 0.25oct

Parametric 2,4,6, or 10 Band

Frequency 20-20kHz

Level -30dB to +15dB

Q Value 0.016 to 3.995 Octave

Hi/Low Shelf 6/12 dB/oct

Frequency 20Hz–20kHz

Level -15dB to +15dB

All Pass

Frequency 20Hz–20kHz

Variable Q HP/LP

Frequency 20Hz–20kHz

Q Value 3.047 to 0.267

Notch/Bandpass

Frequency 20Hz–20kHz

Q Value 92.436 to 0.267

Only available with 48kHz sampling rate

Filters 12

In/Out per lter Yes

Lock per lter and global lock Yes

1) Measured 20Hz – 20kHz unweighted using AES17 LPF @ 48kHz sample rate.

3) Analog in to analog out measured using internal master clock.

4) Zero noise or signal amplitude variaon introducted in digital domain.

5) Latency of network audio link is addional to latency of digital audio processor.

Audio professionals nd our

Protea™ DSP to be

very

intuive and easy to navigate—and you will too. No

need to aend a one-week training class away from

home to learn our soware. Common sense layout

of controls and features, on-line help, or a visit to

the Technical Support page on our website provides

answers to all of your quesons.

Filter Modes Float, Restricted, Manual

Filter Type Notch, Parametric

Filter Frequency Range 20Hz to 20kHz

Notch Filter -

∞

Parametric Filter +15dB to -30dB

Filter Bandwidth 0.016 to 3.995 Octave

Detector Sensivity 5 levels

Float Time 5 minutes to 24 hours

2 Way, 3 Way, 4 Way Crossover & High Pass/Low Pass Filters

Bessel & Buerworth Filters 12/18/24/48 dB/oct

Linkwitz-Riley Filter 12/24/48 dB/oct

Frequency O, 20Hz–20KHz

@ 48kHz Sampling Rate (Input Time, Distance & Temperature)

Speaker Delay 0–21ms

Delay 0–682ms

@ 96kHz Sampling Rate (Input Time, Distance & Temperature)

Speaker Delay 0–10.6ms

Delay 0–341ms

Audio Metering Tool

Range -60dBu to +20dBu

Increments 1dB

Peak Hold Indicator Yes

Pink noise, White noise, Sine wave

Signal Level O, -50dBu to +20dBu

Sine Wave Frequency 20Hz–12kHz

Matrix Mixer

Gain (0.5dB increments) O, -50 to +12dB

Mute Per channel

Auto-mixer Enabled Per channel

Global Auto-mixer Response 0.01sec to 2sec

Enable Ducking at Mixer Yes

Ducking LED Per channel, if enabled

Metering Level, auto-mixer level

Processors

Input A/D, Output D/A 24 bit

DSP Processors 32-bit oang point

Sample Rates 48kHz, 96kHz

Propagaon Delay @ 48kHz: 1.42ms

Propagaon Delay @ 96kHz: 0.71ms

digital Signal proceSSing for pema™

Protea is compable with Microso® Windows 8, 7 (Vista/XP) 32 & 64 bit systems.

Pema 4125

The powered digital signal processor shall consist of eight inputs and four power amplier outputs with the ability to assign any input to any output. Each input channel shall include a summed stereo (RCA, +11dB

maximum) and mic/line gain stage (3-pin Euroblock, +21dB maximum) capable of 0, +20dB, +40dB, and +60dB of gain with +15V phantom power when selected. Summed stereo input impedance shall be 3.16k Ohms

unbalanced and mic/line input impedance shall be 4.8k Ohms acve balanced. Channel One shall include a transformer-isolated TEL-PBX select. Each input and output shall have individual mute capability. Each input

and output shall have six processing blocks congurable for Dynamics (ambient noise compensaon, compressor/limiter, auto-leveler, ducker, gate), Gain (including Group VCA and remote gain), Equalizaon (31-band

graphic, parametric x 10, feedback suppressor), Crossover, Delay, Metering, and Signal Generator (sine wave, pink noise, white noise). The roung stage shall allow the user to assign an input to any or a combinaon

of outputs and separately adjust how much signal level goes to each output (matrix mixer). The matrix mixer shall also have selectable gain-sharing automac mixing capability. Each input stage shall have an addion-

al preamp output (post DSP) on the back panel (3-pin Euroblock). Four powered outputs shall deliver 75W @ 8 Ohms, 125W @ 4 Ohms (7.62mm Euroblock), and channel pairs can be bridged for 250W @ 8 Ohms.

Frequency response shall be ±1dB 20Hz to 20kHz. Signal-to-Noise shall be greater than 102dB, 20Hz – 20kHz unweighted. LED indicators shall show signal level (-18, -12, -6), clip/mute, bridge, over temperature and

over current condions. Output levels shall be adjusted by front panel volume controls when enabled. Full programming and control of the unit shall be from the rear panel RJ-45 jack connected to a 10/100BASE-T

Ethernet LAN connected to a PC running Ashly’s Protea NE Soware. Thirty internal presets (scenes) shall be standard and four scenes shall be accessible via contact closure. The powered digital processor shall have

Cobranet and Dante factory opon. A back panel contact closure shall place the unit in “Standby” reducing power consumpon when idle. The power switch shall be enabled or disabled as needed. Five password

user names and eight levels of security shall be available. A temperature dependent speed-controlled axial fan shall maintain the correct operang temperature. The unit shall weigh 18.5 lbs net and mount in a

standard 19” rack using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema4125

Pema 4250

al preamp output (post DSP) on the back panel (3-pin Euroblock). Four powered outputs shall deliver 150W @ 8 Ohms, 250W @ 4 Ohms (7.62mm Euroblock), and channel pairs can be bridged for 500W @ 8 Ohms.

standard 19” rack using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema4250

Pema 4125.70

al preamp output (post DSP) on the back panel (3-pin Euroblock). Four powered outputs shall deliver 125W @ 70V (7.62mm Euroblock), and channel pairs can be bridged for 250W @ 140V. Frequency response shall

be ±1dB 20Hz to 20kHz. Signal-to-Noise shall be greater than 102dB, 20Hz – 20kHz unweighted. LED indicators shall show signal level (-18, -12, -6), clip/mute, bridge, over temperature and over current condions.

Output levels shall be adjusted by front panel volume controls when enabled. Full programming and control of the unit shall be from the rear panel RJ-45 jack connected to a 10/100BASE-T Ethernet LAN connected

to a PC running Ashly’s Protea NE Soware. Thirty internal presets (scenes) shall be standard and four scenes shall be accessible via contact closure. The powered digital processor shall have Cobranet and Dante

factory opon. A back panel contact closure shall place the unit in “Standby” reducing power consumpon when idle. The power switch shall be enabled or disabled as needed. Five password user names and

eight levels of security shall be available. A temperature dependent speed-controlled axial fan shall maintain the correct operang temperature. The unit shall weigh 18.5 lbs net and mount in a standard 19” rack

using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema4125.70

Pema4250.70

al preamp output (post DSP) on the back panel (3-pin Euroblock). Eight powered outputs shall deliver 250W @ 70V (7.62mm Euroblock), and channel pairs can be bridged for 500W @ 140V. Frequency response shall

levels of security shall be available. A temperature dependent speed-controlled axial fan shall maintain the correct operang temperature. The unit shall weigh 18.5 lbs net and mount in a standard 19” rack using

2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema4250.70

pema

architect & engineering SpecS

pema

architect & engineering SpecS

Pema8125

The powered digital signal processor shall consist of eight inputs and eight power amplier outputs with the ability to assign any input to any output. Each input channel shall include a summed stereo (RCA, +11dB

al preamp output (post DSP) on the back panel (3-pin Euroblock). Eight powered outputs shall deliver 75W @ 8 Ohms, 125W @ 4 Ohms (7.62mm Euroblock), and channel pairs can be bridged for 250W @ 8 Ohms.

dard 19” rack using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema8125

Pema8250

al preamp output (post DSP) on the back panel (3-pin Euroblock). Eight powered outputs shall deliver 150W @ 8 Ohms, 250W @ 4 Ohms (7.62mm Euroblock), and channel pairs can be bridged for 500W @ 8 Ohms.

dard 19” rack using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema8250

Pema8125.70

al preamp output (post DSP) on the back panel (3-pin Euroblock). Eight powered outputs shall deliver 125W @ 70V (7.62mm Euroblock), and channel pairs can be bridged for 250W @ 240V. Frequency response shall

eight levels of security shall be available. A temperature dependent speed-controlled axial fan shall maintain the correct operang temperature. The unit shall weigh 20 lbs net and mount in a standard 19” rack

using 2 spaces (3.5” high).

The powered digital processor shall be an Ashly PEMA Protea Equipped Media Amplier model pema8125.70

Pema8250.70

al preamp output (post DSP) on the back panel (3-pin Euroblock). Eight powered outputs shall deliver 250W @ 70V (7.62mm Euroblock), and channel pairs can be bridged for 500W @ 70V. Frequency response shall