AKG WMS40M2INSTBDUS25A-C - US25A/C Instrumental Band UHF Wireless System with 2 Beltpacks and Receiver

AKG WMS40 Mini2 Instrumental Set US25A/C - Dual UHF Instrument Wireless System with 2 PT40 Mini Bodypacks and SR40 Mini Dual Receiver

The AKG WMS40 Mini2 Instrumental Set US25A/C is a plug-and-play , two-channel UHF wireless system for guitar, bass, and other instruments with a 1/4" (6.3mm) output jack. It includes the SR40 Mini Dual receiver , two PT40 Mini bodypack transmitters , and two AKG MKG L instrument cables . It operates on the fixed frequencies US25A 537.500 MHz and US25C 539.300 MHz , with non-diversity operation and HDAP technology for clear, stable audio. Each bodypack offers up to 30 hours of battery life on a single AA battery, and the receiver provides two balanced 1/4" TRS outputs (one per channel) with adjustable mic-to-line level. The set is optimized for quick deployments in venues, schools, houses of worship, and corporate events where simplicity, reliability, and low operating costs are valued.

Main features

• Dual configuration : SR40 Mini Dual with two integrated receivers and 2× PT40 Mini (one beltpack per channel).
• Fixed frequencies : US25A 537.500 MHz and US25C 539.300 MHz (combined A/C band).
• Instrument connectivity : 2× MKG L (mini XLR 3-pin → 6.3 mm jack).
• Battery life : Up to 30 hours per belt pack with 1 x AA battery; On/Off/Mute switch and gain control on the PT40 Mini.
• Receiver outputs : 2 × balanced 6.3 mm jack (TRS), adjustable mic/line level; typical output at nominal deviation: 500 mV rms .
• Indicators : Per channel on receiver Power , RF OK (signal) and AF Clip (audio), plus volume control per channel.
• Operating range : up to ≈20 m line of sight (unobstructed surroundings).
• Audio : bandwidth 40 Hz–20 kHz , SNR ≈110 dB(A) , THD ≈0.8 % , FM modulation.
• Technology : HDAP for defined sound and consistent dynamic response.
• Power : Universal 12V DC switching power supply with US/UK/EU adapters.

User benefits

• Play untethered : Two independent channels for using two instruments at once or a player + compatible headband/lavalier.
• Ultra-fast setup : power on, adjust volume/gain, and you're done; no menus or scanning required.
• Lower operating costs : up to 30 h with 1×AA reduces battery changes during rehearsals and live sessions.
• Easy integration : Balanced TRS outputs with switchable mic/line level for mixers, interfaces or amplifiers.

Use cases

• Guitar and bass in venues, local tours, music schools, and places of worship.
• Bands and duos that require two simultaneous channels with minimal setup time.
• AV installations in classrooms, gyms or hotels that require reliable wireless instrument signal.

Frequently Asked Questions

• Can I use two instruments at the same time? Yes, each PT40 Mini operates on its own channel (A or C) with a dedicated output on the receiver.
• Does it support headbands/lavaliers? Yes, any AKG capsule compatible with a 3-pin mini XLR .
• Does it have an XLR output? No; the SR40 Mini Dual offers two balanced 6.3 mm TRS outputs (one per channel) with adjustable level.
• How many simultaneous systems can I use? The WMS40 Mini series recommends up to three simultaneous channels combining non-overlapping bands.

Compatibility and notes

The US25A/C frequencies (537.5/539.3 MHz) are designated for specific regions. Before launching, please check the spectrum regulations applicable in your country/region and the availability of these frequencies.

Description for projects

AKG WMS40 Mini2 Instrumental Set US25A/C Dual Analog UHF Wireless System : SR40 Mini Dual receiver with 2 balanced 1/4" TRS mic/line level outputs ; 2 PT40 Mini transmitters with 3-pin mini XLR input, gain control, and On/Off/Mute switch; 2 MKG L cables . Specifications: US25A 537.5 MHz & US25C 539.3 MHz (fixed), 40 Hz–20 kHz , SNR ≈110 dB(A) , THD ≈0.8 % , FM modulation, no-diversity , typical range ≈20 m LOS , 12 V DC power supply (universal supply).