Biamp MA120 120W Rack-Mount Mixer Amplifier 100V & 4 Ohm
The Biamp MA120 is a 120W Class D Mixer Amplifier with four priority levels, a dedicated emergency input, paging mic input with chime, two mic/line inputs with phantom power, four stereo line inputs, VOX mute and both 100V line and 4 Ohm low-impedance operation — stepping up from the MA60 with greater power and expanded input capability for larger professional installations.
The Biamp MA120 is the high-power model in the Biamp MA Series of single-channel mixing amplifiers — stepping up from the MA60 with 120W of continuous output power, two mic/line inputs with phantom power and four stereo line inputs for larger commercial installation scenarios requiring greater amplification capability and more source connectivity. Sharing the same comprehensive priority routing system, emergency input, paging capability and intuitive front panel design as the MA60, the MA120 delivers the same ease of use and professional feature set at double the output power — making it the ideal choice for larger retail, hospitality, education, corporate and public venue environments where greater coverage area or higher output levels are required from a single-channel mixing amplifier.
Four Priority Levels & Expanded Input Configuration
The MA120 provides four priority levels for audio routing — a dedicated emergency input for life safety and building system integration, a paging input with contact closure and chime for announcement and paging applications, two balanced mic/line inputs with 48V phantom power for microphone and line-level sources, and four stereo line inputs summed to mono for background music players and other stereo source devices. The expanded input count over the MA60 — with two phantom-powered mic inputs and four stereo line inputs — provides comprehensive source connectivity for more complex installation scenarios where multiple microphones and music sources need to be managed from a single amplifier. A 24V priority output overrides local volume controls when activated, and a mute all switch on the emergency input provides immediate system muting in emergency situations. A VOX mute function automatically reduces background music when a microphone signal is detected.
120W Class D Efficiency & Fanless Operation
The MA120's Class D amplifier topology delivers efficient, reliable 120W output from a compact 2U rack-mount enclosure without the need for a cooling fan — ensuring completely silent operation for noise-sensitive installation environments. An internal universal power supply (100–240V AC) enables straightforward installation in any mains environment, and an auto standby mode reduces power consumption when the system is not in use.
Biamp MA120 Key Features:
- 120W Class D Single-Channel Amplifier: Continuous 120W output at both 100V line and 4 Ohm low-impedance for larger speaker system installations.
- Four Priority Levels: Emergency input, paging input, two mic/line inputs and four stereo line inputs with hierarchical audio routing.
- Dedicated Emergency Input with Mute All Switch: Immediate system muting and emergency message override for life safety integration.
- Paging Input with Contact Closure & Chime: Attention-grabbing chime and priority paging capability for announcement applications.
- 2 x Balanced Mic/Line Inputs with 48V Phantom Power: Dual phantom-powered inputs for flexible microphone and line-level source connectivity.
- 4 x Stereo Line Inputs (Mono Summed): For background music players and multiple stereo source devices.
- 24V Priority Output: Overrides local volume controls for consistent paging and emergency message levels.
- VOX Mute: Automatically reduces background music when a microphone signal is detected.
- Tone Control: Adjustable tonal shaping for the output signal.
- 100V Line & 4 Ohm Operation: Compatible with both distributed 100V and direct low-impedance speaker systems.
- Fanless Convection Cooling: Silent operation for noise-sensitive installation environments.
- Auto Standby Mode: Reduces power consumption when the system is not in active use.
- Internal Universal Power Supply: 100–240V AC for straightforward installation in any mains environment.
- 2U 19" Rack Mountable: Standard rack installation for professional commercial audio systems.
- 5-Year Biamp Warranty: Backed by Biamp Systems' comprehensive manufacturer warranty.
- CE Marked, UL Listed & RoHS Compliant: Meets professional installation regulatory requirements.
Biamp - Premium Speakers & Amplifiers
View our shipping and delivery information below. All prices include VAT.
Important notice for non-UK orders: Any order being shipping outside of the UK will incur an import tax. See below for more information.
Cut-off Times
Orders must be placed before 3:30pm to guarantee same-day dispatch. Any orders placed after this time are not guaranteed to be shipped the same day, and are more likely to be shipped the next working day.
To guarantee Saturday Delivery, orders must ideally be placed before 2pm.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
Orders placed over the weekend or Friday after cut-off will be processed and shipped the following Monday (or Tuesday during bank holidays).
Mainland UK Delivery Charges
Note: Next-day services are classed as working days (Mon-Fri) and do not include weekends. Please choose Saturday delivery if you require the item over the weekend.
Please also note orders with a high number of boxes may be subject to an additional charge.
All delivery options will be available at the checkout stage. Please ensure you add a mobile number to your order for tracking information.
Offshore & International
We ship to Scottish Highlands, Islands, Ireland and the EU. Please see the table below for base prices. Please note that these prices are subject to change based on the number of boxes.
The following postcodes fall under 'Highlands & Islands', and are subject to the above rates/lead time.
- Scottish Highlands: FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40 (excluding PA38), PH19-26, PH30-41, PH49-50
- Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA38, PA41-49, PA60-78, PH42-44, ZE1-3
If a UK Mainland next-day service is selected at checkout, please be aware that it won't be sent on that service.
If you require a next-day service to Northern Ireland and the highlands, get in touch so we can assist further.
EU Import Tax
Any goods shipped outside of the UK, over a certain value, will incur an import tax. The cost and rate will depend on the country and the order value.
This is a legal requirement and MUST be paid prior to delivery in order to receive your goods. You will be contacted by the courier once the order is dispatched to pay the fee.
Failure to pay import tax when applicable will result in the order being shipped back to Audio Volt. Any returned goods sent back to us due to non-payment of import tax are NOT ELIGIBLE for a refund on the shipping charge.
You can obtain an import duty estimate here.
Delivery Notes
On delivery, you must inspect the goods carefully for damage as Audio Volt is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Audio Volt of such within three working days from the date of delivery.
60 Day Returns Policy
We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:
- Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product's return.
- Contact our Customer Services Team on 02476 369890 (or email info@audiovolt.co.uk). We will then send you an RMA number and a returns form, which needs to be completed and sent back with the returned item(s).
- If the order has been unpacked, re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.
- When returning an item, please obtain a proof of postage receipt from the courier.
Returned items must be mailed within 10 days of when the RMA number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.
Please note: our returns policy is quite straightforward, but there are a number of conditions that we ask our customers to comply with before applying:
- It is your responsibility to request a return. If you don't tell us you want to make a return, we don't know. Once you do tell us, we will do everything we can to action it.
- If you have not requested a return within 60 days of receiving an order, we will assume that you are intending to keep it, and we will not authorise a return.
- We always refund the payment according to how the original purchase was made and aim to do so within 72 hours of the return being received by us.
- Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.
- Delivery charges will not be refunded unless the delivered goods are faulty.
- Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.
- Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369890 if you believe your item has developed a fault.
Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Audio Volt to process the return quickly.
Any Questions?
If you have any questions about our returns policy, please telephone us on 02476 369890 or email us at info@audiovolt.co.uk.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
