AKG WMS40MINSTRSETUS45B - US45B 661.100 MHz Instrument Band UHF Wireless System with Bodypack and Receiver

AKG WMS40 Mini Instrumental Set US45B - UHF Instrument Wireless System 661.100 MHz with PT40 Mini Bodypack and SR40 Mini Receiver

The AKG WMS40 Mini Instrumental Set US45B (661.100 MHz) is a plug & play UHF wireless solution for guitars, basses and other instruments with a 1/4" (6.35mm) output jack. The set includes the SR40 Mini receiver , PT40 Mini bodypack and AKG MKG L instrument cable , delivering clear audio, easy operation and an extraordinary battery life of up to 30 hours on a single AA battery . Its US45B 661.100 MHz frequency is fixed channel, ideal for installations and events that require stability without complex setups. HDAP (High Definition Audio Performance) technology optimizes intelligibility and dynamic response, while the compact receiver allows easy integration into mixers, interfaces or amplifiers via its balanced 1/4" (6.35mm) TRS output.

Main features

• Complete set for instrument : SR40 Mini + PT40 Mini + AKG MKG L cable.
• US45B Frequency : Fixed channel at 661.100 MHz , prepared for direct use without channel scanning.
• Long battery life : up to 30 hours with 1×AA in the PT40 Mini belt pack.
• Wide audio response : 40 Hz–20 kHz to preserve the natural tone of the instrument.
• Professional connectivity : Balanced 6.3mm TRS jack output on the receiver, with adjustable microphone-to-line level.
• Typical operating range : up to 30 m line of sight.
• Compact receiver with status indicators (power, RF OK, AF Clip) and front volume control.
• HDAP technology for clear, consistent sound.
• Compatibility : The belt pack accepts AKG microphones and instruments with a 3-pin mini XLR connector.
• Multi-system capability : can be combined with other frequencies in the series (US45A/US45C) to work with up to 3 simultaneous systems in the same environment.

User benefits

• Setup in seconds : power on, connect the MKG L, and tap. No complex menus or pairing required.
• Less maintenance : long battery life reduces battery changes and downtime.
• Faithful tone : Full audio band and balanced output to minimize noise when sending the signal to mixing consoles or interfaces.
• True Portability : Lightweight desktop receiver (approx. 133 × 43 × 132 mm), easy to integrate into racks with accessories.
• Stage stability : Fixed UHF channel with clear RF indicators and audio clip for quick level adjustments.

Use cases

• Electric guitar and bass in rehearsal rooms, small/medium stages, and mobile gigs.
• Shared backline or rotating musicians where simplicity and speed of change are critical.
• AV installations in hotels, gyms, educational centers, or places of worship that require a compatible instrument mic/bodypack or headworn/lavalier mic.

Frequently Asked Questions

• Can I use multiple systems at the same time? Yes. By combining different frequencies in the series (e.g., US45A/US45B/US45C), up to three systems can be used simultaneously in the same space.
• Does it work with AKG headset or lavalier microphones? Yes, as long as they use the 3-pin mini XLR connector.

Description for projects

Fixed-channel UHF wireless instrument system, AKG WMS40 Mini Instrumental Set US45B , frequency 661.100 MHz . Includes SR40 Mini receiver with balanced 6.3 mm TRS output jack and volume control; PT40 Mini body-pack transmitter with 3-pin mini XLR connector , typical RF power 10 mW , runtime up to 30 h with 1×AA; MKG L instrument cable . System audio response 40 Hz–20 kHz , typical range ≈30 m , non-diversity receiver with RF/AF indicators. Receiver dimensions approx. 133 × 43 × 132 mm .