Dynacord U30:1M 30W Half-Rack Mixer Amplifier 4Ω / 8Ω / 100V
The Dynacord U30:1M is a compact 30W Half-Rack Mixer Amplifier with 4 inputs, phantom power, VOX ducking, EMG override, 2-tone chime and support for 4Ω, 8Ω, 70V and 100V operation — ideal for background music and voice announcement installations in bars, restaurants, retail, education and hospitality environments.
The Dynacord U30:1M is a 30W Class D mixer amplifier designed for small to medium-sized commercial installations where quality, performance and reliability are paramount. Ideal for background music and voice announcement applications across bars, restaurants, retail outlets, educational institutions, houses of worship, museums, galleries, transport hubs and conference centres, the U30:1M delivers a comprehensive feature set in a remarkably compact half-rack 1U enclosure — opening up a wide range of installation possibilities even in space-constrained environments.
Included brackets facilitate single and dual rack-mount configurations, and desktop and under-counter installations are equally viable. When rack-mounted side by side, two U30:1M units occupy a single rack unit — effectively doubling both channel count and output power within the same rack space.
Versatile 4-Input Configuration
The U30:1M provides four input channels covering a wide range of source types. Inputs 1 and 2 are balanced mic/line inputs with switchable 48V phantom power — Input 1 also features contact override with 2-tone chime for attention-grabbing paging alerts, whilst Input 2 includes VOX ducking that automatically reduces background music volume when a voice signal is detected, ensuring clear voice communication without manual intervention. Inputs 3 and 4 are unbalanced stereo RCA line inputs for media players and other consumer audio sources, converted to mono internally. A dedicated EMG input accepts both line-level and 100V signals for emergency message override, ensuring critical announcements are always heard clearly above all other audio sources.
Full Impedance Flexibility & DSP
The U30:1M supports 4Ω, 8Ω, 70V and 100V speaker operation — selectable via DIP switch — for complete compatibility with both low-impedance and distributed 100V speaker systems. Bass and treble shelving EQ of ±12dB provides tonal shaping of the output signal, and two high-pass filters — a permanently active 70Hz filter and a switchable 120Hz filter — allow unwanted low-frequency content to be removed from the signal path for cleaner, more focused audio reproduction through installed speakers.
Comprehensive Protection & Status Monitoring
The U30:1M incorporates a comprehensive protection suite including audio limiters, high temperature, DC, HF, short circuit and over-current protection on the amplifier, alongside mains over/under voltage protection, inrush current limiting, mains over-current and high-temperature protection on the switching mode power supply. Front-panel status LEDs provide clear at-a-glance indication of power, signal, peak, call and protection status, and a remote power OFF contact closure input enables remote standby activation for energy-efficient operation when the system is not in use. Fanless convection cooling ensures silent operation across an operating temperature range of -5°C to +45°C.
Dynacord U30:1M Key Features:
- 30W Class D Amplifier: Efficient, fanless amplification for small to medium commercial installations.
- Half-Rack 1U Enclosure: Two units mount side by side in a single rack unit — doubling channel count and output power within the same rack space.
- 4 Inputs: 2 x balanced mic/line with phantom power, 2 x unbalanced stereo RCA line inputs.
- Switchable 48V Phantom Power: Per mic/line input for condenser microphone use.
- VOX Ducking (Input 2): Automatically reduces background music volume when a voice signal is detected.
- Contact Override with 2-Tone Chime (Input 1): Attention-grabbing chime and priority override for paging applications.
- EMG Override Input: Line and 100V emergency message input — ensures critical announcements are always heard.
- 4Ω, 8Ω, 70V & 100V Speaker Operation: DIP switch selectable for full low-impedance and distributed system compatibility.
- Bass & Treble Shelving EQ: ±12dB at 150Hz and 5kHz for tonal shaping of the output signal.
- 70Hz (Permanent) & 120Hz (Switchable) High-Pass Filters: Remove unwanted low-frequency content from the signal path.
- Remote Power OFF: Contact closure input for remote standby activation and energy efficiency.
- Front-Panel Status LEDs: Power, signal, peak, call and protection status indication.
- Comprehensive Protection: Audio limiters, thermal, DC, HF, short circuit, over-current and mains protection.
- Fanless Convection Cooling: Silent operation for noise-sensitive installation environments.
- Flexible Mounting: 19" rack, half-rack, desktop, under-counter and side-by-side dual configurations.
- Operating Temperature -5°C to +45°C: Suitable for a wide range of commercial installation environments.
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.
