954.100 - Power Dynamics PMDA4120 4-Channel Amplifier 100V 4x 120W

The Power Dynamics PMDA4120 is a compact 1U Class-D amplifier engineered for 100V line multi-zone public address systems. Delivering 4 x 120W across four independent zones, each with its own volume control, it offers flexible routing and crystal-clear audio for commercial environments. Lightweight, energy-efficient and packed with protection circuitry, it is the ideal backbone for background music and paging in venues that demand reliable, low-maintenance performance.

$799.00

The Power Dynamics PMDA4120 is a compact 1U Class-D amplifier engineered for 100V line multi-zone public address systems. Delivering 4 x 120W across four independent zones, each with its own volume control, it offers flexible routing and crystal-clear audio for commercial environments. Lightweight, energy-efficient and packed with protection circuitry, it is the ideal backbone for background music and paging in venues that demand reliable, low-maintenance performance.

The Power Dynamics PMDA4120 is a four-channel 100V line amplifier built for demanding commercial sound installations that require independent zone control and rock-solid reliability.

Designed in a slim 1U chassis, this Class-D powerhouse delivers 4 x 120W of clean audio across four separate zones, each with its own dedicated volume control. Whether you are feeding background music to different floors of a shopping centre, paging in a school, or distributing sound through a hotel, the PMDA4120 gives you precise level management without the need for extra hardware.

Advanced switching technology keeps power consumption extremely low while generating minimal heat, making it perfect for 24/7 operation in racks where ventilation is limited. An automatic standby mode further reduces energy use by powering down after one minute of no signal, waking instantly when audio returns.

Four balanced line inputs, each with independent gain adjustment and a selectable 70Hz high-pass filter, allow simple integration with mixing consoles, media players and paging microphones. Rear-panel dip switches offer fast preset configuration, while Euroblock speaker outputs with locking screws ensure secure, tamper-proof connections in permanent installs.

Comprehensive protection circuitry guards against short circuits, overload, overheating, clipping and DC faults, giving venue owners and installers total peace of mind. At just 6.45kg and only 44mm high, the amplifier slides easily into any standard 19" rack, leaving plenty of room for additional gear.

  • 4-Zone public address system
  • High efficiency Class-D power amplifier
  • Lightweight and compact 1U design
  • Automatic standby feature
  • Four channel separate speaker outputs (4-16Ω/100V)
  • Rated power output of 4x 120W
  • 4 balanced inputs per channel with separate gain control
  • High pass filter option at 70Hz on all channels
  • Convenient dip switch pre-setting on rear panel
  • Complete short circuit, overload, high temp and clip protection
  • Ground lift switch
  • Euro block screw terminals with lock possibility
  • Suitable for 19" rack mounting

More Information
Additional Information

Product Color: Black

Output Power (RMS): 480W

Impedance: 8 Ohm, 100V

Frequency Response: 20Hz - 20,000Hz / 70Hz - 10,000Hz

Signal-to-Noise Ratio: >80dB

Power Supply: 100-240VAC 50/60Hz

Input Level (Line): 750mV

Total Harmonic Distortion (THD): <0.1%

Power Consumption: 0.324 - 0.395A

Dimensions (L x W x H): 375 x 482 x 44mm

Weight: 6.45kg

Included Accessories: Power cable

Main Sub Category Audio

Sales FAQ - Frequently Asked Questions

Here you'll find answers to our most asked questions about our sales products. Still can't find quite what you're looking for, or have something we should know? Send us an email, we're happy to help!

  • Q1: Do you ship to my country?

    A1: Most likely, you can see what countries we ship to in the drop-down at the checkout.

  • Q2: Can i get a demo of the equipment?

    A2: While we do do sales, we are predominantly a hire company so we do have some stock on hand but we dont have a storefront. If you'd like to get a demo on some equipment please call and we'll arrange an appointment to see the equipment if we have it available.

  • Q3: What are the accepted payment methods?

    A3: We accept online card payment with MasterCard, VISA or direct deposit.

  • Q4: Does the price include GST?

    A4: Our online prices displayed all include GST and are shown in AUD currency.

  • Q5: When do I receive my order?

    A5: Most orders are dispatched from Melbourne but some orders are dispatched from warehouses located in different states of Australia, sometimes items are sourced directly from suppliers. Delivery time will depend on the shipping country and address.

  • Q6: Do I have to pay international taxes and duties?

    A6: Your order may be subject to import duties and taxes, which are levied once a shipment reaches your country. We cannot control and is not responsible for any duties/taxes applied to your package upon delivery. You will be responsible for paying additional charges for customs clearance. Customs policies vary widely from country to country; please contact your local customs office for further information.

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