Model
640/641
1260/1261
A n a l o g I n p u t s
6 t o t a l
1 2 t o t a l
Connectors
Euroblock (Line and Mic); RCA (Source);
S/PDIF (1260/1261 only)
Type
Electronically balanced/RF filtered
Impedance
> 50 k
Ω
Balanced; > 75k
Ω
Unbalanced
Max Input Line Level
+20dBu Mic/Line; +12 dBu RCA
CMRR
> 40dB, typically >55dB @ 1kHz
Mic Pre Gain
30 to 60dB
Mic EIN
< 118dB, 22Hz-22kHz, 150
Ω
Mic Phantom Power
15V
A n a l o g O u t p u t s
4
6
Connectors
Euroblock
Type
Electronically balanced/RF filtered
Impedance
120
Ω
Balanced; 60
Ω
Unbalanced
Max Output Level
+20dBu
A / D P e r f o r m a n c e
Type
dbx Type IV
TM
conversion system
Dynamic Range line
> 113dB A-weighted; > 110dB unweighted
Type IV Dynamic Range
> 119dB A-weighted, 22kHz BW;
> 117dB unweighted, 22kHz BW
S y s t e m P e r f o r m a n c e
Dynamic Range
112dB A-weighted; 109dB unweighted
THD+N
0.003% typical at +4dBu, 1 kHz, 0dB gain
Frequency Response
20Hz-20kHz, +/–0.5dB
Interchannel Crosstalk
> 80dB typical
Crosstalk input to output
> 80dB
Propogation Delay
0.6 msec
Operating Voltage
100-120 VAC,
100-240VAC
200-240 VAC 50/60 Hz
50/60 Hz
Power Requirements
29 Watts
P h y s i c a l
Weight
6.8 lbs (3.1 kg); Shipping weight 8.8 lbs (4.0 kg)
Dimensions
1.75 in. H x 5.75 in. D x 19 in. W
S a f e t y A g e n c y C e r t i f i c a t i o n s
UL 60065, IEC 60065, EN 55013, E 60065