22
HELIX BOARD 12 PLUS
Microphone Preamp E.I.N.
(150 ohms terminated, max gain)
<-129.5 dBm
THD
(Any output, 1KHz @ +14dBu, 20Hz to 20KHz,
channel inputs)
<0.005%
CMRR (1 KHz @ -60dBu, Gain at maximum)
80 dB
Maximum Level
Mic preamp input
+10 dBu
All other input
+22 dBu
Balanced output
+28 dBu
Impedance
Mic preamp input
2 K ohms
All other inputs (except insert)
10 K ohms
RCA 2T output
1.1 K ohms
Equalization
3-band, +/-15 dB
Low EQ
80 Hz
Mid EQ
2.5 KHz
Hi EQ
12 KHz
Low cut filter
75Hz (-18dB/oct)
Power Requirement
(external power supply, depends on region)
100VAC, 120VAC, 220~240VAC, 50/60Hz
Physical
Net Weight
2.9 kg (6.4 lbs)
Dimensions (WxHxD)
245.4 x 86 x 271.3 mm
(9.7” x 3.4” x 10.7”)