AKG WMS40M2INSTBDUS25B-D - US25B/D Instrumental Band UHF Wireless System with 2 Beltpacks and Receiver

AKG WMS40M2INSTBDUS25B-D - US25B/D Dual Instrumental UHF Wireless System with 2 PT40 Mini Beltpacks, SR40 Mini Dual Receiver and MKG L Cables

The AKG WMS40M2INSTBDUS25B-D is the dual instrument set in the WMS40 Mini series, ready for guitar, bass or other instruments with a 1/4" output. It incorporates two PT40 Mini bodypack transmitters , the SR40 Mini Dual receiver in an ultra-compact chassis and two AKG MKG L cables (mini-XLR 3-pin → 1/4" jack). This version works on the US25B/D frequency combination (two fixed channels, 537.900 MHz and 540.400 MHz ), simplifying coordination to use both channels at the same time. The system stands out for its extraordinary autonomy of up to 30 hours per bodypack with a single AA battery, its clear sound with HDAP technology and its plug & play operation for stages, rehearsals, classrooms or mobile backline.

Main features

• Complete dual set for instrument : SR40 Mini Dual + 2× PT40 Mini + 2× MKG L cable (mini-XLR 3p → 6.3 mm jack) + universal power supply with US/UK/EU adapters.
• US25B/D band with two fixed frequencies : US25B 537.900 MHz and US25D 540.400 MHz (each receiver channel works on one of them).
• SR40 Mini Dual Receiver : integrates two independent receivers and offers two balanced 6.3 mm jack (TRS) outputs —one per channel— with RF OK and AF Clip indicators.
• PT40 Mini Transmitters : 3-pin mini-XLR input, gain control and 30h of autonomy with 1×AA.
• System Audio : FM modulation, 40–20,000 Hz (typ.), HDAP technology for natural and stable sound.
• Global Power : 110–240V with regional adapters included for international touring and installations.

Product benefits

• Two channels ready to play : connect two instruments or set up main + reserve with factory-compatible frequencies.
• Ready to install : Fixed channels, bright LEDs and standard 6.3mm outputs make it easy to integrate into amps, pedalboards or mixers.
• Minimal operating costs : up to 30 hours per belt pack with one AA; fewer battery changes during very long gigs.
• Ultra-compact form factor : small, robust receiver fits into any lightweight rack, flycase or stage table.

Use cases

• Live with guitar/bass: freedom of movement without modifying the instrument.
• Rehearsal and education : two channels for teacher + student or to alternate instruments.
• Mobile backline for corporate events or light tours that require quick setup.

Frequently Asked Questions

What's in the box? 1x SR40 Mini Dual, 2x PT40 Mini, 2x MKG L cables, switching power supply with US/UK/EU adapters, and AA batteries to get started.

Can I use pedals and amps as usual? Yes. Connect each output of the SR40 Mini Dual to your chain (pedalboard/amp/mixer) as if it were the output of a wired receiver.

What range and stability can I expect? The system uses FM modulation with HDAP technology and level control; standard practice with the WMS40 Mini is reliable use at typical stage distances and direct line of sight, optimizing levels to avoid clipping .

Description for projects

AKG WMS40 Mini2 Instrumental US25B/D UHF wireless system with SR40 Mini Dual receiver (two built-in receivers; two balanced 1/4" jack outputs ; RF OK/AF Clip indicators; 110–240 V power supply with adapters) and two PT40 Mini transmitters (3-pin mini-XLR; gain control; up to 30 h with 1×AA). Includes two MKG L cables . Fixed frequencies US25B 537.900 MHz and US25D 540.400 MHz . Typical system specifications: FM modulation, 40–20,000 Hz , HDAP technology.