LD Systems HPA 1 Amplifier for Headphones and Wired IEM
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LD Systems HPA 1 Amplifier for Headphones and Wired IEM
The LD Systems HPA 1 is a high-performance headphone amplifier designed to deliver superior sound quality for stage, studio, and home recording environments. It stands out as an optimal solution for wired in-ear monitoring, providing crystal clear audio and a robust build that ensures longevity and reliability. This compact unit is encased in a rugged, ergonomically shaped plastic housing with a soft-touch surface and practical belt clip, making it easy to use on the go.
Among its versatile features, the HPA 1 offers both locking XLR connectors for stereo signal L/R input and a balanced 3.5 mm stereo jack AUX input. This allows for parallel use of clicks or playback, enhancing its functionality. The amplifier is equipped with protection circuits to safeguard against excessive input levels, ensuring safe and stable operation. For fixed installations, the HPA 1 can be connected to a network adapter via a hollow pin socket with a negative internal contact.
Whether you're a musician, audio engineer, or home recording enthusiast, the LD Systems HPA 1 delivers precise volume and balance control, ensuring distortion-free playback with its built-in limiter. The switchable mono sum feature produces a focused sound, making this device an indispensable tool for any audio setup.
Key Features
- Compact and powerful headphone amplifier
- Ideal for wired in-ear monitoring
- Balanced XLR inputs L/R
- 3.5 mm AUX input for click and playback
- Precise volume and balance controllers
- Built-in limiter for distortion-free playback and feedback protection
- Switchable mono sum for a focused sound
- Ultra stable housing with soft-touch surface
- Practical belt clip for direct on-body operation
- Connection for a 9 V DC adapter
Specifications
- Inputs: 2
- AUX In: Stereo
- Input connectors: 3.5 mm stereo jack (AUX In), XLR-F (L + R Input, balanced)
- Input impedance: 10000 (3.5 mm jack) Ohm(s), 6000 (XLR In) Ohm(s)
- Input sensitivity: -6 (3.5 mm jack) dBV, 3 (XLR In) dBu
- Max. input level: 7 (3.5 mm jack) dBV, 16 (XLR In) dBu
- Protection circuits: Audio Limiter, Max. Input leveling, Power OFF - Mute relay
- Headphones outputs: 1
- Headphones outputs: 3.5 mm TRS
- Power Output (1% THD @ 33 Ohm Load): 2 x 1,65 Vrms
- Minimum connected impedance: 16 (per channel) Ohm(s)
- Freq. response: 20 - 40000 Hz
- Total Harmonic Distortion (THD): 0.04%
- Controls: Balance L/R, Power / Volume, Stereo/Mono (Focus) switch
- Indicators: Battery (low battery: red), Peak (Amber), Power LED (Power ON: green), Signal (green)
- Operating voltage: 9 V block, 9 V DC power supply
- Max. Current: Nom. 0.07 A / Max. 0.15
- Cabinet material: Plastic
- Cabinet surface: Soft-touch
- Cabinet Color: Black
- Width: 80 mm
- Height: 42.5 mm
- Depth: 133 mm
- Weight: 0,155 kg
Package Contents
- LD Systems HPA 1 Amplifier for Headphones and Wired IEM
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