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Ashly PEMA Series Four-Channel 250W 100V Protea-Equipped Media Amplifier

SKU: ASPEMA425010 MFR: PEMA 4250.10
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Key Features

  • Deliver pristine audio with this Ashly power amplifier, perfect for pro audio setups.
  • This 4-channel amplifier provides a robust 250W output at 100V, ideal for large venues.
  • Enjoy built-in Protea DSP for precise audio shaping, enhancing your sound quality.
  • Achieve superior signal-to-noise ratio, ensuring clear, noise-free audio amplification.
  • Use the flexible input impedance options for seamless integration with various audio sources.
  • Benefit from the amplifier's reliability, backed by Ashly's 5-year limited warranty.
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Special Order?Estimated to Ship: 08/18/2025
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Ashly PEMA 4250.10 Specifications

Amplifier

Amplifier

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  • Channels

    4

  • Constant Voltage

    100V (per channel): 250W; 20Hz-20kHz, 1% THD, All Channels Driven

  • Line Current Draw: Standby Mode

    190mA

  • Line Current Draw: Idle (no signal)

    540mA

  • Line Current Draw: Typical

    2.85A (1/8 power pink noise)

  • Line Current Draw: Maximum

    6.00A (1/3 power pink noise)

  • Thermal Dissipation: Standby Mode

    46.7 BTU/hr

  • Thermal Dissipation: Idle (no signal)

    123 BTU/hr

  • Thermal Dissipation: Typical

    341 BTU/hr (1/8 power pink noise)

  • Thermal Dissipation: Maximum

    378 BTU/hr(1/3 power pink noise)

  • Signal to Noise

    >105dB (20Hz-20kHz, Unweighted)

  • Input Sensitivity

    7.2dBu

  • Voltage Gain

    35dB

  • Damping Factor

    >250 (8 Ohm load, <1kHz)

  • Distortion

    <0.5% (SMPTE, typical)
    <0.5% (THD-N, typical, 8 Ohm, 10dB below rated power, 20Hz-20kHz)

  • Channel Separation

    -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 Channel 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

  • 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

  • LED Indicators: Unit Status

    Power: Switch: On, Off (Blue)
    Standby: Standby, flashing (Yellow)
    Protect: On, Off (Red)
    Disable: On, Off (Yellow)
    COM: On, for Ethernet data or Device ID (Green)

  • LED Indicators: Each Channel

    Signal level: Clip/Mute (Red); -6dB (Yellow) and -18dB, -12dB (Green)
    Bridge: Per Channel Pair (Green)
    Temp: Per Channel (Yellow)
    Current: Per Channel: Proportional to output (Green)

  • Audio Connections

    1 Euro connector balanced input, selectable for Mic, Line or TEL-PBX
    7 Euro connector balanced inputs, software selectable for Mic or Line
    8 pairs of unbalanced, summed mono RCA connectors optimized for consumer line level (-10dBV nominal) devices
    8 Euro connector Preamp/Aux outputs
    4 Euro connector speaker outputs
    CobraNet and Dante Digital I/O options

  • AC Mains

    120VAC or 240VAC, +/-10% 50-60Hz

  • Power Cable Connector

    15A Edison, 3-Prong IEC

  • Airflow

    IN through sides, OUT through front

  • Environmental

    40 to 120 deg. F (4 to 49 deg. C) noncondensing

  • Input Source Select

    Analog, Auto (Net, AES3, Analog)

  • Brick Wall Limiter: Threshold

    -20dBu to +20dBu

  • Brick Wall Limiter: Ratio

    Infinite

  • Brick Wall Limiter: Attack

    0.2ms/dB to 50 ms/dB

  • Brick Wall Limiter: Release

    5ms/dB to 1000ms/dB

  • Compressor: Threshold

    -20dBu to +20dBu

  • Compressor: Ratio

    1.2:1 to infinite

  • Compressor: Attack

    0.2 to 50ms

  • Compressor: Release

    5ms/dB to 1000ms/dB

  • Compressor: Detector

    Peak/Average

  • Compressor: Attenuation Bus

    2 available

  • Compressor: Metering

    In, Out, Attenuation, Graphical

  • AutoLeveler Controls: Target Level

    -40dBu to +20dBu

  • AutoLeveler Controls: Action

    Gentle, normal, aggressive, user defined

  • AutoLeveler Controls: Maximum Gain

    0dB to +22dB

  • AutoLeveler Controls: Metering

    Input, Gain, Attenuation

  • AutoLeveler Controls: Ratio

    1.2:1 to 10:1

  • AutoLeveler: Threshold Below Target

    -30dB to 0dB

  • AutoLeveler Controls: Gain

    5ms/dB to 1000ms/dB (Increase/Decrease Rate)

  • AutoLeveler Controls: Hold Time

    0-6 sec

  • Ambient Noise: Max Gain

    -20dB to +20dB

  • Ambient Noise: Min/Base Gain

    -40dB to +20dB

  • Ambient Noise: Gain Change Rate

    0.2s/dB to 20s/dB

  • Ambient Noise: Link Group

    16 available

  • Ambient Noise: ANC Input Channel

    1-4 or 1-8

  • Ambient Noise: Noise Threshold

    -40dBu to +20dBu

  • Ambient Noise:Program/Ambient Gain Ratio

    0.3:1 to 3:1

  • Ambient Noise: Metering

    Input level, Attenuation, Average noise

  • Ducking: Trigger Threshold

    -80dBu to +20 dBu

  • Ducking: Ducking Release

    5ms/dB to 1000ms/dB

  • Ducking: Ducking Depth

    0dB to -30dB, infinity

  • Ducking: Enable Ducking at Matrix Mixer

    Yes

  • Ducking: Metering

    Input

  • Gate: Threshold

    -80dBu to +20dBu

  • Gate: Range

    Off, 100dB to 0dB

  • Gate: Attack

    0.2ms/dB to 50 ms/dB

  • Gate: Release

    5ms/dB to 1000ms/dB

  • Gate: Metering

    Key Signal, Gate LED, Graphical

  • Key Engage Enable

    Yes

  • Key Frequency

    20Hz to 20kHz

  • Key Bandwidth

    0.016 to 3.995 Octave

  • Gain (with/without VCA)

    -50dB to +12dB, off, polarity invert

  • Gain Digital VCA Groups

    4 available

  • Remote RD8C Gain

    Enable per channel, 0dB to infinity

  • WR-5 (neWR-5) Remote Gain

    0 to -50dB, Mute

  • EQ: File Type

    .csv, .fir (Output only, 48kHz only, 2-384 Taps)

  • EQ: 31-Band Filter Type

    Constant Q or proportional

  • EQ: Bandwidth

    0.499oct to 0.25oct

  • EQ: Parametric 2,4,6, or 10 Band

    Frequency: 20-20kHz
    Level: -30dB to +15dB
    Q Value: 0.016 to 3.995 Octave

  • EQ: Hi/Low Shelf 6/12 dB/oct

    Frequency: 20Hz-20kHz
    Level: -15dB to +15dB

  • EQ: All Pass

    Frequency: 20Hz-20kHz

  • EQ: Variable Q HP/LP

    Frequency: 20Hz-20kHz
    Q Value: 3.047 to 0.267

  • EQ: Notch/Bandpass

    Frequency: 20Hz-20kHz
    Q Value: 92.436 to 0.267

  • Feedback Suppressor: Filters

    12

  • Feedback Suppressor: In/Out per filter

    Yes

  • Feedback Suppressor:Filter & global lock

    Yes

  • Feedback Suppressor: Filter Modes

    Float, Restricted, Manual

  • Feedback Suppressor: Filter Type

    Notch, Parametric

  • Feedback Suppressor: Filter Frequency

    Range 20Hz to 20kHz

  • Feedback Suppressor: Notch Filter

    Infinity

  • Feedback Suppressor: Parametric Filter

    +15dB to -30dB

  • Feedback Suppressor: Filter Bandwidth

    0.016 to 3.995 Octave

  • Feedback Suppressor:Detector Sensitivity

    5 levels

  • Feedback Suppressor: Float Time

    5 minutes to 24 hours

  • Crossover: 2/3/4 Way & HP/LP Filters

    Bessel & Butterworth Filters: 12/18/24/48 dB/oct
    Linkwitz-Riley Filter: 12/24/48 dB/oct
    Frequency: Off, 20Hz-20KHz

  • Speaker Delay at 48kHz Sampling Rate

    0-21ms (Input Time, Distance & Temperature)

  • Delay at 48kHz Sampling Rate

    0-682ms (Input Time, Distance & Temperature)

  • Speaker Delay at 96kHz Sampling Rate

    0-10.6ms (Input Time, Distance & Temperature)

  • Delay at 96kHz Sampling Rate

    0-341ms (Input Time, Distance & Temperature)

  • Audio Metering Tool: Range

    -60dBu to +20dBu

  • Audio Metering Tool: Increments

    1dB

  • Audio Metering Tool: Peak Hold Indicator

    Yes

  • Signal Level

    Off, -50dBu to +20dBu

  • Sine Wave Frequency

    20Hz-12kHz

  • Matrix Mixer: Gain (0.5dB increments)

    Off, -50 to +12dB

  • Matrix Mixer: 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

  • Input A/D, Output D/A

    24 bit

  • DSP Processors

    32-bit floating point

  • Sample Rates

    48kHz, 96kHz

  • Propagation Delay at 48kHz

    1.42ms

  • Propagation Delay at 96kHz

    0.71ms

General

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  • Dimensions (WxHxD)

    19 x 3.5 x 16.84" (48.26 x 8.89 x 42.77cm)

  • Weight

    23.5 lbs (10.66kg)

About Ashly PEMA 4250.10

Explore the pinnacle of audio amplification with the PEMA Series Four-Channel 250W 100V Protea-Equipped Media Amplifier, a state-of-the-art solution designed for the discerning audio professional. This advanced media amplifier sets a new industry standard, offering a powerful and high-quality audio experience within a compact two-rack space unit.

The PEMA Series is engineered to deliver unparalleled sound quality with full 96kHz performance on 32-bit SHARC processors, ensuring utterly transparent audio that satisfies even the most critical listeners. With the inclusion of CobraNet and Dante network audio support, and now with Dante Transmit, this amplifier is at the forefront of digital audio networking, allowing for seamless integration into modern sound systems.

The amplifier's built-in DSP is a testament to its advanced capabilities, providing users with a sophisticated 8-in x 4-out matrix mixing, FIR filter capabilities, and a full suite of Ashly Protea DSP tools. The 8 built-in mic preamps, gain sharing automatic microphone mixing, and automatic feedback suppression are just a few features that make this amplifier efficient and versatile for various audio environments.

Efficiency is further enhanced with features like ambient noise compensation, dedicated telephone/PBX input, and dual RCA and balanced euroblock inputs. Post DSP AUX line level outputs, stereo summed to mono, and event scheduling capabilities add to the flexibility of this robust system.

The PEMA Series is not only powerful but also user-friendly, with an intuitive interface that simplifies system installation and programming. It offers full control using Ashly software over a 10/100 baseT Ethernet connection, making it easy to adjust settings from a remote location. Hot-plug DSP placement and automatic DHCP network IP configuration streamline the setup process, ensuring a quick and secure integration into any audio system.

Security is paramount, and the PEMA Series addresses this with multi-level security features, including lockable front panel controls and password access to prevent unauthorized adjustments. The amplifier's I/O count and formats are ideal for small to mid-sized installations, with eight balanced input channels that are software selectable for mic or line levels, and eight pairs of summed-mono RCA connectors.

As part of the respected Protea DSP lineage, the PEMA Series amplifier is remarkably easy to program and deploy, offering hot-plug DSP placement and full-range remote-gain control capability. Whether you're controlling the system via Ashly standard wall remotes, Ethernet wall remotes, or the Ashly Remote iPad App, you have the power to tailor the audio experience to your exact specifications.

In summary, the PEMA Series Four-Channel 250W 100V Protea-Equipped Media Amplifier is a durable, efficient, and high-quality choice for professionals seeking an elegant solution that simplifies installation while delivering sophisticated, reliable performance. With its advanced features and powerful DSP, this amplifier is a game-changer in the realm of professional audio amplification.

Ashly PEMA 4250.10 Features

  • CobraNet and Dante network audio fully supported, Dante Transmit now available.
  • FIR Filter capable
  • 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: TUV, CE, FCC, RoHS

Warranty Information

This product has a limited warranty of 60 months for parts and 60 months for labor.

Product Documents

User Manual

Key Features

  • Deliver pristine audio with this Ashly power amplifier, perfect for pro audio setups.
  • This 4-channel amplifier provides a robust 250W output at 100V, ideal for large venues.
  • Enjoy built-in Protea DSP for precise audio shaping, enhancing your sound quality.
  • Achieve superior signal-to-noise ratio, ensuring clear, noise-free audio amplification.
  • Use the flexible input impedance options for seamless integration with various audio sources.
  • Benefit from the amplifier's reliability, backed by Ashly's 5-year limited warranty.

What's in the box:

  • Ashly PEMA Series Four-Channel 250W 100V Protea-Equipped Media Amplifier
  • Ashly 5 Year Limited Warranty