Parameter	Specification	Limit	Units	ments
Power Output:	1 Channel Driven	Max average rms power, 20-20 kHz
	500	5%	mW	32 Ω headphones
	500	5%	mW	50 Ω headphones
	500	5%	mW	100 Ω headphones
	300	5%	mW	200 Ω headphones
	200	5%	mW	300 Ω headphones
	120	5%	mW	600 Ω headphones
	6 Channels Driven
	250	5%	mW	32 Ω headphones
	250	5%	mW	50 Ω headphones
	250	5%	mW	100 Ω headphones
	200	5%	mW	200 Ω headphones
	100	5%	mW	300 Ω headphones
	120	5%	mW	600 Ω headphones
(Note: Above values produce loudness levels of 120 dB in most headphones)
Headphone Impedance Range	32-600	10%	Ω	For best performance
Inputs: Type	Active Balanced/Unbalanced
.....Connectors	1/4" TRS			Balanced
.....Impedance	20k	1%	Ω
.....Maximum Level	+20	1	dBu
Outputs: Type	(6) Stereo Amplifiers			(6) Outs front + (6) Outs rear
.....Connectors	1/4" TRS			Tip = Left, Ring = Right
.....Impedance	0.25	typ.	Ω	Headphone Outputs
Overall Gain Range	Off to +20	1	dB
LED Threshold: Signal Present	-20	1	dBu	Input Level
Ultrasonic Filter	20 kHz, 6 dB/octave	5%	Hz	Linear phase
Frequency Response	20-20 kHz	+0/-3	dB
THD+Noise @ 1 kHz	0.002	.002	%	150 mW / 200 Ω
THD+Noise 20-20 kHz	0.02	.01	%	150 mW / 200 Ω
IM Distortion (SMPTE)	0.03	.01	%	60 Hz / 7 kHz, 4:1, 150 mW / 200 Ω
Signal-to-Noise Ratio	-96	2	dB	re 150 mW / 200 Ω, A-weighted
Mean Time Between Failure	20,500		Hrs	Mil Hdbk-217D, Section V
Unit: Agency Listing				UL/cUL/CE
.....Line Voltage	100-240 VAC, 50/60 Hz		VAC	12W Max Power
Unit: Construction	All Steel
.....Size	1.75"H x 19"W x 5.3"D		(1U)	(4.4 cm x 48.3 cm x 13.5 cm)
.....Weight	5 lb			(1.9 kg)
Shipping Size	4.25" x 20.3" x 13.75"		(1U)	(11 cm x 52 cm x 35 cm)
.....Weight	9 lb			(4.1 kg)
Note: 0 dBu = 0.775 Vrms