Focusrite ISA828 MKII Pre Amp 8 Channel
Product Information
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Specifications
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MIC INPUTS
Gain Range
0dB to +30dB (30-60 switch disabled) and +30dB to +60dB (30-60 switch enabled) in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
+7dBu, min gain, medium Z
Frequency Response (20Hz – 20kHz)
20Hz – 20kHz ±0.2dB, min gain, medium Z
THD + N
-91dB (0.0028%) @ -1dBr, min gain, medium Z
EIN
-123dBu ‘A’-Weighted (typical)
Signal-To-Noise Ratio
122dB ‘A’-Weighted (typical), medium Z
Common-Mode Rejection Ratio
997Hz CMRR: -93dB, min gain, medium Z
Phantom Power
+48V, independently switchable per channel
High-Pass Filter
75Hz knee frequency, 18dB/Octave, independently switchable per channel
Phase
Inverts the phases of the selected input
Frequency Response (10Hz – 110kHz)
10Hz – 110kHz ±1.5dB, min gain, medium Z
WEIGHT AND DIMENSIONS
Weight (Without Accessories)
7.05kg / 15.55lbs
Weight (With Accessories)
7.48kg / 16.49lbs
Height
88mm / 3.46″
Width
482mm / 18.98″
Depth
325mm / 12.80″
LINE INPUTS
Gain Range
-20dB to +10dB in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
+25dBu, min gain, low Z
Frequency Response (20Hz – 20kHz)
20Hz – 20kHz ±0.1dB, min gain, low Z
THD + N
-91dB (0.0028%) @ -1dBr, min gain, low Z
Signal-To-Noise Ratio
122dB ‘A’-Weighted (typical), min gain, low Z
Frequency Response (10Hz – 122kHz)
10Hz – 122kHz ±3dB, min gain, low Z
INSTRUMENT INPUTS
Gain Range
+10dB to +40dB with continuous gain using trim pot
CROSSTALK
Microphone Talkback
-60dB; 20Hz – 20kHz, min gain, medium Z
LINE CROSSTALK
Microphone Talkback
-80dB; 20Hz – 20kHz, min gain, medium Z
INSTRUMENT CROSSTALK
Microphone Talkback
-80dB; 20Hz – 20kHz, min gain, medium Z
FRONT PANEL CONNECTIVITY
Channel Count:
2 Channels In
Instrument Inputs
4 x 1/4″ jack inputs
Instrument Inputs
4 x 1/4″ jack inputs
REAR PANEL CONNECTIVITY
Mic Inputs
Input: 8 x Female XLR
LINE LEVEL
Channel Count
8 In and 8 Out
Input
8 x 1/4″ jack inputs
Output
1 x DB-25 connectors (AES59)
INSERTS
Channel Count
8 In
Input
1 x DB-25 connectors (AES59)
DIGITAL CARD SLOT
Compatible Card
ISA ADN8
PSU
PSU
1 x IEC Input
REAR PANEL INDICATORS
Control Functions
1 x Pot (Meter Trim)
POWER
PSU
1 x Internal, 100-240V, 50/60Hz, consumption 35W.
HEAT PERFORMANCE
Operating Temperature
Operates at up to an ambient temperature of 40 degrees Celsius
FRONT PANEL INDICATORS
Control Functions
16 x Pots (Gain and Trim). 60 Switches (On/Off Switch, 30-60 Gain, +48V, Phase, HPF, Insert, Z In, Input, Meters Pre A-D, Clock Select and Ext. Word Clock)
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