Audio Technica ATW-1421 System 20 PRO Dual Body-Pack Wireless Mic System 2.4GHz
The Audio Technica ATW-1421 is a System 20 PRO Dual Body-Pack 2.4GHz Digital Wireless Microphone System comprising the ATW-R1440 4-channel half-rack receiver chassis and two ATW-T1401 body-pack transmitters — delivering 24-bit/48kHz audio, AES128 encryption and scalability to 20 simultaneous channels for live performance, presentation and commercial audio applications.
The Audio Technica ATW-1421 is a complete dual body-pack wireless microphone system from the System 20 PRO range — offering the same self-managing, plug-and-play 2.4GHz digital wireless platform as the ATW-1422 but configured with two ATW-T1401 body-pack transmitters for use with lavalier microphones, headworn microphones and instrument cables.
Operating in the 2.4GHz band, the system is completely free from TV interference and operates without the need for frequency licensing — making it ideal for permanent installations, live events, houses of worship, theatres, fitness studios, conference rooms, educational facilities and any application where reliable, discreet wireless audio is required. With 24-bit/48kHz audio quality, AES128 encryption and up to 20 simultaneous channels, the ATW-1421 delivers professional wireless performance in a versatile body-pack configuration at an accessible price point.
ATW-R1440 4-Channel Half-Rack Receiver Chassis
The ATW-R1440 is a half-rack receiver chassis capable of receiving up to four transmitters simultaneously, with each receiver channel pairable with up to four different transmitters for instant switching between different transmitter configurations without re-pairing. The half-rack chassis is supplied with both short and long rack ears — two long ears can be combined as a joining plate to secure two chassis in a single full rack space. Receiver units can be docked in the chassis or mounted remotely at up to 100m away via Ethernet cable, providing added installation flexibility where the chassis cannot be positioned in the ideal RF reception location. Up to five chassis can be linked using the included RJ12 cable, creating a stable multichannel system supporting up to 20 simultaneous channels. The chassis System ID Display shows RF signal level, system ID, transmitter battery level and system link status at a glance.
Standard & HD Operating Modes
The system offers two selectable operating modes — Standard mode (10 channels) minimises latency to just 2.8ms for live performance applications where timing is critical, whilst HD mode (20 channels) maximises channel count to 20 simultaneous systems for large-scale installations and events. Both modes operate at 24-bit/48kHz audio sampling throughout.
ATW-T1401 Body-Pack Transmitter
The two included ATW-T1401 body-pack transmitters feature a water and sweat-resistant cW-style locking 4-pin connector for secure connection to a wide range of Audio-Technica lavalier microphones, headworn microphones and instrument cables — with a DC bias output on Pin 4 (+10V) for condenser microphone compatibility. True diversity dual antennas built into the transmitter ensure reliable RF signal reception, and an OLED display provides clear readout of key settings and alerts. A slide-to-mute switch provides convenient on/off control without powering down the transmitter. Both transmitters are paired and ready to use out of the box, accepting two AA batteries for up to 15 hours of operation on alkaline batteries (up to 29 hours on lithium), and include charging terminals compatible with Audio-Technica ATW-CHG3 and ATW-CHG3N charging docks when used with NiMH rechargeable batteries.
Wireless Manager Software & AES128 Encryption
Seamless setup and centralised management — including multiple UHF, 2.4GHz and DECT wireless systems simultaneously — is provided by Audio-Technica's Wireless Manager software. Transmitter status, audio level, remaining battery time and other system information can be monitored from a single screen, with the ability to configure, monitor and save device settings as projects for rapid deployment and recall. AES128 encryption comes standard on all transmissions for security and reliable operation, and Syslog protocol compatibility provides integration with wider network management systems.
Audio Technica ATW-1421 Key Features:
- Complete Dual Body-Pack Wireless System: ATW-R1440 4-channel half-rack receiver chassis and two ATW-T1401 body-pack transmitters — paired and ready to use out of the box.
- 2.4GHz Plug-and-Play Operation: Completely free from TV interference and frequency licensing requirements.
- 24-bit/48kHz Digital Audio: Professional audio quality in both Standard and HD modes.
- Standard Mode (10 Channels, 2.8ms Latency): Minimised latency for live performance applications.
- HD Mode (20 Channels, 6.7ms Latency): Maximum channel count for large-scale installations and events.
- Up to 5 Chassis Linked Simultaneously: Scalable to 20 simultaneous channels via RJ12 cable linking.
- Remote Receiver Mounting: Receiver units mountable up to 100m away via Ethernet cable.
- Each Channel Pairs with Up to 4 Transmitters: Instant switching between transmitter configurations without re-pairing.
- cW-Style Locking 4-Pin Connector: Water and sweat-resistant connection for lavalier mics, headworn mics and instrument cables.
- DC Bias Output (+10V): Condenser microphone compatibility via Pin 4.
- True Diversity Dual Antennas: Built into both body-pack transmitters for reliable RF performance.
- OLED Displays: On both receiver chassis and body-pack transmitters for clear status readout.
- Up to 15 Hours Battery Life (Alkaline) / 29 Hours (Lithium): Extended operation for all-day use.
- NiMH Rechargeable Battery Compatible: Works with ATW-CHG3 and ATW-CHG3N charging docks (sold separately).
- AES128 Encryption: Standard security for all wireless transmissions.
- Audio-Technica Wireless Manager Software: Centralised management of multiple wireless systems from a single screen.
- Auto-Lock Function: Prevents unintended transmitter operations during use.
- Syslog Protocol Compatible: Integration with wider network management systems.
- Half-Rack Chassis with Joining Plate Option: Two chassis combinable into a single full rack space.
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120dB Dynamic Range: Exceptional headroom and clarity for professional wireless audio.
Audio-Technica
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.
