Ashly PEMA 8250 8-Channel Amplifier with Protea DSP & CNM-2 CobraNet Option Card

PEMA sets a new industry benchmark for value-engineered zone sound systems. By seamlessly merging our powerful, open-architecture DSP functionality paired amplifier performance 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 compensation, 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 8250: Architect & Engineering SpecsThe powered digital signal processor shall consist of eight inputs and eight power amplifier 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 active 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 configurable for Dynamics (ambient noise compensation, compressor/limiter, auto-leveler, ducker, gate), Gain (including Group VCA and remote gain), Equalization (31-band graphic, parametric x 10, feedback suppressor), Crossover, Delay, Metering, and Signal Generator (sine wave, pink noise, white noise). The routing stage shall allow the user to assign an input to any or a combination of outputs and separately adjust how much signal level goes to each output (matrix mixer).

he matrix mixer shall also have selectable gain-sharing automatic mixing capability. Each input stage shall have an addition-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. 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 conditions. 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 Software. 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 option. A back panel contact closure shall place the unit in "Standby" reducing power consumption 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 operating 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 Amplifier model pema8250


Protea Digital Signal Processing for PEMAProtea is compatible with Microsoft Windows 8, 7 (Vista/XP) 32 & 64 bit systems. Audio professionals find our Protea DSP to be very intuitive and easy to navigate-and you will too.