PROJECT Head Box RS
PROJECT Head Box RS
PROJECT Head Box RS
PROJECT Head Box RS
PROJECT Head Box RS
PROJECT Head Box RS

PRO-JECT Head Box RS

PROJECT Head Box RS. High-end headphone amplifier

Discontinued product.

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RS series high-end headphone amplifier

The brand's top model is a reference headphone amplifier with a fully balanced tube preamp section (6922 dual triode tubes) and class A output. It has both balanced and unbalanced inputs, as well as balanced and balanced connectors. by-pass for using the input signal with other components.

The volume control consists of an exact volume control with the resistance compensated between the left and right channels.

A special output impedance selector allows the output impedance to be adjusted in three steps 5, 20 and 50 ohms to better match the performance between the amp and headphones. Some experiments with different output impedance selector positions are highly recommended to get the best sound experience from your headphones.

An advanced multi-stage power supply with four different output voltages is used to achieve the best possible S / N for playback - which comes from detail, dynamics and imaging with any dynamic headphone!

• Fully balanced dual mono design

• Tube pre-section

• Class A output stage

• Switchable output impedance for maximum performance

• Low distortion design.

• Low noise components for better dynamics and detail

• Output: 6.3 mm connector

• All metal housing in silver or black

• Optional upgrade: lRS Uni 1 (or 4) power supply to further enhance the quality of the sound.

Technical data:

Line input / output 1 pair RCA / phono and 1 pair XLR

Headphone jack 6.3 mm

Output power 350 mW / 32 ohms, 60 mW / 300 ohms

Crosstalk -58dB

Signal-to-noise ratio -99dB

Frequency response 30Hz - 20kHz / (+ 0.2dB; -0.05dB)

THD (IMD) 0.17% (XLR in, 5 ohm output impedance setting, 32 ohm load)

Gain 9 dB

Power supply 20V / 3A DC

Power consumption 1.3A DC

Dimensions W x H x D 206 x 72 x 200 (209) mm (D with terminals)

2150G Weight (without power supply)