AKG WMS40MINSTRSETUS25A - UHF Instrument Band US 25 to 537.500 MHz Wireless System with Bodypack and Receiver

AKG WMS40 Mini Instrumental Set US25A - UHF Wireless Instrument System 537.500 MHz with PT40 Mini Bodypack, SR40 Mini Receiver and MKG L Cable

The AKG WMS40 Mini Instrumental Set US25A is a fixed-channel analog UHF wireless system designed for guitars, basses, and other instruments with a 1/4" (6.3mm) output jack. It operates in the US25A band (537.500 MHz) and comes ready-to-use with the SR40 Mini receiver , PT40 Mini bodypack , and MKG L instrument cable (mini XLR to 1/4" (6.3mm) jack). It offers plug-and-play operation, up to 30 hours of battery life on a single AA battery , and a wide 40 Hz–20 kHz audio response that preserves instrument tone. The receiver features a balanced 1/4" (6.3mm) TRS output with switchable mic-to-line level and status LEDs; the bodypack adds gain control and an on/off/mute switch. It is compatible with the AKG MicroMics family and can be combined with other WMS40 Mini sets on different frequencies for simultaneous operation.

Main features

• US25A Frequency: Fixed channel at 537.500 MHz for immediate start without scanning.
• Crystal-clear audio: HDAP technology and 40Hz–20kHz bandwidth.
• Exceptional battery life: up to 30 hours with 1xAA in the pouch.
• Receiver connectivity: 6.3 mm balanced jack output (TRS) , adjustable microphone to line level.
• Indicators and control: Power / RF OK / AF Clip LEDs and front volume control.
• Compatibility: 3-pin mini XLR input on the beltpack for AKG instruments, headbands and lavaliers.
• Typical range: up to ≈30 m line of sight.
• Compact and robust desktop non-diversity receiver .

Benefits for the musician

• Faithful and stable tone : full range and balanced output to minimize noise when connecting to mixers or interfaces.
• Setup in seconds : plug in, turn on, and tap. No complex menus or pairing.
• Fewer battery changes : autonomy reduces interruptions and operating costs.
• Versatile System : The beltpack accepts multiple AKG capsules (instrument, headband, lavalier) via mini XLR.

Use cases

• Guitar and bass in venues, rehearsals, music schools, and places of worship.
• Shared backline and mobile gigs where speed and reliability are paramount.
• AV installations requiring a simple and stable wireless instrument line.

Frequently Asked Questions

• Can I use multiple systems at the same time? Yes, by combining WMS40 Mini sets on different frequencies (e.g., US25A/US25B/US25C/US25D) for simultaneous operation.
• Does the receiver have an XLR output? The SR40 Mini features a single balanced 6.3 mm jack (TRS) output with adjustable level.

Compatibility and usage notes

The PT40 Mini's mini XLR connector accepts the included MKG L cable and other AKG accessories. To operate multiple channels, use WMS40 Mini variants with non-overlapping frequencies. Important: Check the spectrum usage regulations in your country/region before commissioning.

Description for projects

AKG WMS40 Mini Instrumental Set US25A (537.500 MHz) fixed-channel analog UHF wireless instrument system. Includes SR40 Mini receiver with balanced 1/4" (6.3 mm) TRS output, adjustable mic/line level, and status LEDs; PT40 Mini transmitter with 3-pin mini XLR input, gain control, and On/Off/Mute switch; MKG L cable (mini XLR → 1/4" (6.3 mm) jack). Typical specifications: audio 40 Hz–20 kHz , SNR 110 dB(A) , THD 0.8% , RF ≈10 mW , range ≈30 m LOS . Dimensions SR40 Mini 133 × 43 × 132 mm , 581 g ; PT40 Mini 60 × 75.5 × 30 mm , ≈60 g . Power supply: 1×AA (belt pack) and universal switching power supply (receiver).