PreSonus HP4 – Compact 4-Channel Headphone Distribution Amplifier

The PreSonus HP4 offers powerful, clean headphone monitoring in a compact 1/3U rack-friendly housing. With individual level control, mono summing, and monitor output options, it’s ideal for studios, rehearsal rooms, and live sessions where multiple listeners need reliable, high-quality sound.

Key Features

• Four powerful headphone outputs: Each channel delivers up to 130 mW into 60 Ω—ample volume for nearly any headphone.
• Individual level control and mono summing: Adjust mix per listener and switch each channel to mono as needed.
• Balanced line I/O and monitor control: Two balanced ¼″ TRS inputs and outputs, with level adjustment and mute for monitor outputs.
• Daisy-chain capability: Loop your signal into another HP4 or HP60 for expanded distribution without extra cables.
• Compact and sturdy design: Metal chassis takes up only 1/3 rack space and includes sealed, detented rotary controls.

Customer Benefits

The HP4 simplifies multi-user headphone setups with clean, individual control and flexible routing options. Its compact build makes it easy to deploy in tight studio racks or on desktop surfaces, helping your sessions sound focused and organized.

Quick Specs

• Headphone outputs: 4 × ¼″ stereo, 130 mW per channel (60 Ω load)
• Frequency response (HP outputs): 20 Hz – 20 kHz ±0.5 dB
• Input channels: 2 × balanced ¼″ TRS
• Monitor outputs: 2 × balanced ¼″ TRS with level control and mute
• Controls: Volume per headphone, mono switch per channel, monitor level and mute
• Daisy-chain: Monitor outputs feed additional HP4 units or amplifiers
• Power: External 12 V DC power supply (included)
• Dimensions: Approx. 14 cm × 14 cm × 4.5 cm
• Weight: Approx. 2.3 kg

What’s in the Box

• PreSonus HP4 amplifier
• 12 V DC power supply

Use Cases / Ideal For

Fantastic for tracking sessions, rehearsal spaces, or group listening scenarios—where you want every listener to have independent control and high-quality output without overcomplication.

Compatibility

Easily integrates into setups via balanced TRS connections from mixers, interfaces, or audio desks. Its monitor outputs also allow cascading to expand for larger headphone setups.

Pros & Cons

✅ Pros:

• Powerful, clean headphone distribution for multiple users
• Individual volume and mono control per channel
• Compact, rack-mountable build
• Expandable designs via daisy-chaining

⚠️ Cons:

• Requires external power supply—no internal PSU
• Single mix feed—no independent mixing per headphone output

The PreSonus HP4 offers efficient, powerful headphone monitoring across multiple users—a straightforward and durable solution for collaborative audio environments at Soundium.