Pro-Ject Head Box DS3 B – Ultra-Powerful Fully Balanced Headphone Amplifier

The Pro-Ject Head Box DS3 B is a no-compromise headphone amplifier built for audiophiles who need serious power with absolute control. Featuring a fully balanced, discrete amplifier design, it delivers exceptional drive, ultra-low noise, and refined detail for even the most demanding headphones.

Key Features

• Fully balanced, discrete amplifier topology: Ensures maximum channel separation, minimal distortion, and uncompromised signal purity
• High-output power stage: Delivers up to 1500 mW of balanced power for effortless control over demanding headphones
• Balanced and single-ended headphone outputs: Supports 4.4 mm Pentaconn, 4-pin XLR, 6.3 mm, and 3.5 mm connections
• RCA and XLR analogue inputs: Integrates seamlessly into both balanced and unbalanced hi-fi systems
• Full aluminium chassis: Rigid enclosure provides effective shielding, stability, and long-term durability

Customer Benefits

Head Box DS3 B allows high-end headphones to perform without limitations. Its powerful yet controlled amplification improves dynamics, imaging, and low-level detail, while the fully balanced architecture keeps the sound clean and composed even at higher listening levels.

Quick Specs

• Dimensions: 20.6 x 7.0 x 19.4 cm
• Weight: 1.43 kg (without power supply)
• Max output power: 1500 mW (32 Ω), 560 mW (300 Ω)
• Headphone impedance support: Min. 8 Ω
• Inputs: RCA, XLR
• Headphone outputs: 3.5 mm, 6.3 mm, 4.4 mm balanced, 4-pin balanced XLR

What’s in the Box

• Pro-Ject Head Box DS3 B headphone amplifier
• External power supply

Use Cases / Ideal For

Ideal for audiophiles and headphone enthusiasts using high-impedance or low-sensitivity headphones. Well suited for reference listening setups, desktop hi-fi systems, and high-performance balanced signal chains.

Compatibility

Compatible with balanced and single-ended headphones and analogue source components such as DACs, streamers, and preamplifiers via RCA or XLR connections.

Pros & Cons

✅ Pros:

• Exceptional power reserves for demanding headphones
• True fully balanced, discrete amplifier design
• Excellent channel separation and very low noise floor
• Premium aluminium construction with refined aesthetics

⚠️ Cons:

• No digital inputs or internal DAC
• Larger footprint than entry-level headphone amplifiers

The Pro-Ject Head Box DS3 B represents a serious step into high-end headphone amplification. With class-leading power, balanced precision, and robust build quality, it’s a compelling choice for listeners who demand absolute performance from their headphones.