Pro-ject Head Box DS2 B

Fully balanced high end headphone amplifier

Brand:

Enough power to drive demanding headphones
Dual mono design principle
Four gain settings to match any headphone
Three current settings to deliver best sonics
Single ended (6.3 mm) and balanced (4 Pin XLR) headphone output
Both outputs usable simultaneously
Phase inverter built in at input stage to convert unbalanced signal to a balanced one for superior sound
Powerstage realized by two TPA6120A2 chips
BLUE ALPS potentiometer for best volume control
Optionally with wooden side panels
Available in silver or black

Output power	2 x 550 mW (in 33 Ohms, both channels driven)
SNR	98 dB (A weighted, full output)
THD +N	< 0.02%
Gain (unbalanced)	0, 3, 9,12 dB (no load)
Gain (balanced)	6, 9, 15, 18 dB (no load)
Frequency response	20 Hz – 20 kHz (+/- 0.2 dB)
Analogue Inputs	1 pair RCA/Cinch
	1 pair XLR
Headphone output	1 x 6.3 mm (unbalanced)
	1 x 4 Pin XLR (balanced)
Analogue loop outputs	1 pair RCA/Cinch
	1 pair XLR
Recommended headphone impedances	8 – 600 Ohms
Trigger in/out	12 V
Power supply	18 V / 1A DC
Standby power consumption	< 0.5 W
Dimensions W x H x D	206 x 71 x 218 mm (Alu)
	240 x 72 x 218 mm (Wood)
Weight	1461 g (Alu) without power supply
	1940 g (Wood) without power supply