Audibax AHP-100A - Active in-ear personal monitor with volume control and belt clip

Audibax AHP-100A - Active in-ear personal monitor with volume control and belt clip

The Audibax AHP-100A is an active in-ear personal monitor (bodypack headphone amplifier) ​​designed to provide clear and reliable monitoring for stage performances, rehearsals, and audiovisual production. Its XLR/1/4" combo input accepts monitor mixes from a mixing console's auxiliary send or a headphone output, and the 1/8" (3.5 mm) stereo headphone output allows you to listen with any standard IEM or headphones. It features a front-mounted volume control (which also turns the unit off when fully counterclockwise), an internal stereo/mono switch to suit different setups, and a belt clip for hands-free use. It operates on two 1.5V AAA batteries and offers a flat frequency response of 20 Hz–20 kHz with low distortion.

Main features

• Versatile connectivity: 1 XLR/6.35 mm combo input (line/headphones) and 1 3.5 mm stereo mini-jack headphone output .
• Control and usability: volume potentiometer with on/off function and power/battery indicator LED .
• Internal stereo/mono switching: selectable via internal switch depending on the source (aux/stereo).
• Professional portability: belt clip and quick access to the battery compartment via sliding button.
• Audio quality: 20 Hz–20 kHz , distortion ≤1%, signal-to-noise ratio ≥ −70 dB, sufficient power for multiple headphone impedances.
• Compact format: only 40 × 40 × 120 mm and 200 g in weight.

Product benefits

• Coherent listening in any environment: convert stage or headphone mixes into stable, high-quality personal monitoring.
• Total connection flexibility: works with both mono aux sends and stereo headphone outputs, without additional equipment.
• Simple operation: single volume control with integrated power off and LED signaling.
• Mobility and organization: pocket-sized format with clip, ideal for musicians, technicians and creators who need freedom of movement.

Use cases

• Live and rehearsal: in-ear monitoring for vocalists and musicians from the console's auxiliary send.
• Audiovisual production and streaming: personal listening for presenters, camera operators or technicians.
• Studio and recording room: individual return when there is no dedicated headphone distribution.

Frequently Asked Questions

• Does it work in stereo? Yes. An internal switch allows you to choose mono (for aux sends) or stereo (for headphone outputs or other stereo sources).
• What power does it need? 2 AAA 1.5V batteries . No power adapter required.
• What connectors does it support? XLR/6.35 mm combo input and 3.5 mm stereo mini-jack headphone output.
• Does it work with any IEM? It is compatible with most IEMs/headphones; check the output power according to your impedance (indicative values ​​below).

Connectivity and performance

• Input impedance: ~20 kΩ (XLR) / ~10 kΩ (TRS).
• Indicative output power: 90 mW ×2 @16 Ω; 61mW ×2 @32Ω; 43mW ×2 @62Ω; 32 mW ×2 @100 Ω.
• Gain specifications (according to data sheet): “Magnification” 5× / 1.3× and “Gain” 14 dB / 2 dB (internal manufacturer references).

Usage recommendations

• Adjust the mono/stereo selector before connecting the headphones to avoid imbalances.
• Start with the volume at the minimum and gradually increase it to protect your hearing.
• Use new alkaline batteries or equivalent quality NiMH rechargeable batteries (1.2–1.5 V) to maximize runtime.

Project description

Active in-ear personal monitor with 1 XLR/6.35 mm combo input , 1 3.5 mm mini-jack headphone output ; internal mono/stereo switching ; frequency response 20 Hz–20 kHz ; input impedance ~20 kΩ (XLR) / ~10 kΩ (TRS); THD ≤1% ; SNR ≥ −70 dB ; output up to 90 mW ×2 @16 Ω (see impedance table); power supply 2 × AAA (1.5 V); dimensions 40 × 40 × 120 mm; weight 200 g; includes belt clip.