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12
IMPACT 8.4/12.4/16.4/24.4/8.4X/12.4X/16.4X/24.4X
IMPACT 8.4(X)
IMPACT 12.4(X)
IMPACT 16.4(X)
IMPACT 24.4(X)
S/N ratio, ref to +4” not
98145.451
>90 dB
>90 dB
>90 dB
>90 dB
Microphone Preamp E.I.N. (150
ohms terminated, max gain)
<-129.5 dBm
<-129.5 dBm
<-129.5 dBm
<-129.5 dBm
THD (Any output, 1KHz @
+14dBu, 20Hz to 20KHz, channel
inputs)
<0.005%
<0.005%
<0.005%
<0.005%
CMRR
(1 KHz @ -60dBu, Gain
at maximum)
80dB
80dB
80dB
80dB
Maximum Level
Mic Preamp Input
+10dBu
+10dBu
+10dBu
+10dBu
All Other Input
+22dBu
+22dBu
+22dBu
+22dBu
Unbalanced Output
+22dBu
+22dBu
+22dBu
+22dBu
Balanced Output
+28dBu
+28dBu
+28dBu
+28dBu
Impedance
Mic Preamp Input
2 K ohms
2 K ohms
2 K ohms
2 K ohms
All Other Input (except insert)
10 K ohms
10 K ohms
10 K ohms
10 K ohms
All other output
100 ohms
100 ohms
100 ohms
100 ohms
RCA 2T Output
1.1 K ohms
1.1 K ohms
1.1 K ohms
1.1 K ohms
Equalization
3-band, +/-15dB
3-band, +/-15dB
3-band, +/-15dB
3-band, +/-15dB
Low EQ
80Hz
80Hz
80Hz
80Hz
Mid EQ (mono channel)
100-8k Hz,
sweepable
100-8k Hz,
sweepable
100-8k Hz,
sweepable
100-8k Hz,
sweepable
Mid EQ (stereo channel)
800, 3k Hz
800, 3k Hz
800, 3k Hz
800, 3k Hz
Hi EQ
12 kHz
12 kHz
12 kHz
12 kHz
Low cut filter (on mono channel)
75 Hz (-18 dB/oct)
75 Hz (-18 dB/oct)
75 Hz (-18 dB/oct)
75 Hz (-18 dB/oct)
Low pass filter on main mono
output
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
Built-in Switching Power Sup-
ply
100-240 VAC,
50/60 Hz
100-240 VAC,
50/60 Hz
100-240 VAC,
50/60 Hz
100-240 VAC,
50/60 Hz
Net Weight
7.2 kg (15.9 lbs)
8.7 kg (19.2 lbs)
10.5 kg (23.1 lbs)
13.5 kg (29.7 lbs)
Dimensions (WxHxD)
510x112x437.2
mm
(20”x4.4”x17.2”)
642x112x437.2
mm
(25.3”x4.4”x17.2”)
774x112x437.2
mm
(30.5”x4.4”x17.2”)
1038x112x437.2
mm
(40.9”x4.4”x17.2”)