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Focusrite ISA828 ISA Series 8 Channel Microphone Pre Amplifier

$2,699.99
Was $3,124.99 Save: $425.00 (14%)
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SKU: FCR16-AMS-ISA828
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Description

You can enjoy the benefits of Focusrite’s classic heritage sound in many ways, but one of the most cost-effective is with the ISA 828, which includes eight Focusrite transformer-based mic preamps in a compact 2U package, along with front panel instrument ins and rear panel line inputs.

The Focusrite ISA mic preamp is based closely on the original design created by Rupert Neve in 1985 for Sir George Martin’s AIR Studios. Virtually unchanged over the years, the ISA mic preamp delivers the warm, full sound that could be just what you’re looking for – and if you use a significant number of microphones at once, the ISA828 is for you.

Specifications
  • Focusrite ISA828 ISA Series 8 Channel Microphone Pre Amplifier
  • SKU: FCR16-AMS-ISA828
  • Eight ISA series transformer-based preamps
  • Optional eight-channel 192kHz A-D converter
  • Interface easily with Pro Tools and other systems
  • Direct instrument inputs
  • Inserting available on every channel
  • Switchable impedance
  • High pass filter, polarity reverse and phantom power
  • Six LED input meter
  • Eight Lundahl LL1538 mic input transformers

  • Mic Inputs:
    • Gain range: 0 dB to 60 dB in 10 dB steps
    • Input Impedance: Variable, 600?, 1k4?, 2k4?, 6k8?
    • EIN (equivalent input noise): -126 dB measured at 60 dB of gain with 150 Ohm terminating impedance and 22 Hz / 22 kHz bandpass filter
    • Noise at main output with gain at unity (0 dB): -97 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Signal to noise ratio relative to max headroom (9dBu): 106 dB
    • THD at medium gain (30dB): 0.0008% measured with a 1 kHz -20 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency response at minimum gain (0 dB): -0.5 dB down at 10 Hz and –3 dB down at 110kHz
    • Frequency response at maximum gain (60 dB): –3 dB down at 16 Hz and –3 dB down 85 kHz
    • CMRR: 91.8 dB (Channel 1, 1 kHz, maxiumum gain)
    • Crosstalk Channel to Channel: With 10 dB @ 1 kHz input to chA, chB output = 102 dBrA. With 10 dB @ 10 kHz input to chA, chB output = 84 dBrA
  • Line Inputs:
    • Gain range: -20 dB to +10 dB in 10 dB steps
    • Input Impedance: 10 k? from 10 Hz to 200 kHz
    • Noise at main output with gain at unity (0 dB): -96 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Signal to noise ratio relative to max headroom (24 dBu): 120 dB
    • Signal to noise ratio relative to 0dBFS(+22dBu): 118dB
    • THD at unity gain (0dB): 0.001% measured with a 0 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency Response at unity gain (0dB): 0.3 dB down at 10 Hz and –3 dB down at 122 kHz
  • Instrument Inputs:
    • Gain range: 10 dB to 40 dB continuously variable
    • Input Impedance: 1 M? or 300 k?
    • Noise at minimum gain (+10 dB): -90 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Noise at maximum gain (+40 dB): -62 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • THD at minimum gain (+10 dB): 0.002% measured with a 10 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency Response at 10 dB gain with -10 dB input: 10 Hz - 200 kHz +/- 0.6 dB
    • Frequency Response at 40 dB gain with -40 dB input: -2.5 dB down at 10 Hz and 0 dB at 200 kHz
    • Roll off: 18 dB per octave 3 pole filter
    • Frequency: Fixed 75Hz measured at the 3dB down point
  • Weight and Dimensions:
    • Weight: 19.5 lbs
    • Dimensions (W x H x D): 19" (W) x 3.5" (H) x 12" (D) (13.8" depth with heat sink)
  • This item is New
  • 1-Year Manufacturer's Warranty

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Return Policy
You may return this item in its original condition within 14-Days for a refund, minus a 20% restocking fee, and minus any shipping charges we paid to get the item to you.

Description

You can enjoy the benefits of Focusrite’s classic heritage sound in many ways, but one of the most cost-effective is with the ISA 828, which includes eight Focusrite transformer-based mic preamps in a compact 2U package, along with front panel instrument ins and rear panel line inputs.

The Focusrite ISA mic preamp is based closely on the original design created by Rupert Neve in 1985 for Sir George Martin’s AIR Studios. Virtually unchanged over the years, the ISA mic preamp delivers the warm, full sound that could be just what you’re looking for – and if you use a significant number of microphones at once, the ISA828 is for you.

Specifications
  • Focusrite ISA828 ISA Series 8 Channel Microphone Pre Amplifier
  • SKU: FCR16-AMS-ISA828
  • Eight ISA series transformer-based preamps
  • Optional eight-channel 192kHz A-D converter
  • Interface easily with Pro Tools and other systems
  • Direct instrument inputs
  • Inserting available on every channel
  • Switchable impedance
  • High pass filter, polarity reverse and phantom power
  • Six LED input meter
  • Eight Lundahl LL1538 mic input transformers

  • Mic Inputs:
    • Gain range: 0 dB to 60 dB in 10 dB steps
    • Input Impedance: Variable, 600?, 1k4?, 2k4?, 6k8?
    • EIN (equivalent input noise): -126 dB measured at 60 dB of gain with 150 Ohm terminating impedance and 22 Hz / 22 kHz bandpass filter
    • Noise at main output with gain at unity (0 dB): -97 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Signal to noise ratio relative to max headroom (9dBu): 106 dB
    • THD at medium gain (30dB): 0.0008% measured with a 1 kHz -20 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency response at minimum gain (0 dB): -0.5 dB down at 10 Hz and –3 dB down at 110kHz
    • Frequency response at maximum gain (60 dB): –3 dB down at 16 Hz and –3 dB down 85 kHz
    • CMRR: 91.8 dB (Channel 1, 1 kHz, maxiumum gain)
    • Crosstalk Channel to Channel: With 10 dB @ 1 kHz input to chA, chB output = 102 dBrA. With 10 dB @ 10 kHz input to chA, chB output = 84 dBrA
  • Line Inputs:
    • Gain range: -20 dB to +10 dB in 10 dB steps
    • Input Impedance: 10 k? from 10 Hz to 200 kHz
    • Noise at main output with gain at unity (0 dB): -96 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Signal to noise ratio relative to max headroom (24 dBu): 120 dB
    • Signal to noise ratio relative to 0dBFS(+22dBu): 118dB
    • THD at unity gain (0dB): 0.001% measured with a 0 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency Response at unity gain (0dB): 0.3 dB down at 10 Hz and –3 dB down at 122 kHz
  • Instrument Inputs:
    • Gain range: 10 dB to 40 dB continuously variable
    • Input Impedance: 1 M? or 300 k?
    • Noise at minimum gain (+10 dB): -90 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • Noise at maximum gain (+40 dB): -62 dBu measured with a 22 Hz / 22 kHz bandpass filter
    • THD at minimum gain (+10 dB): 0.002% measured with a 10 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
    • Frequency Response at 10 dB gain with -10 dB input: 10 Hz - 200 kHz +/- 0.6 dB
    • Frequency Response at 40 dB gain with -40 dB input: -2.5 dB down at 10 Hz and 0 dB at 200 kHz
    • Roll off: 18 dB per octave 3 pole filter
    • Frequency: Fixed 75Hz measured at the 3dB down point
  • Weight and Dimensions:
    • Weight: 19.5 lbs
    • Dimensions (W x H x D): 19" (W) x 3.5" (H) x 12" (D) (13.8" depth with heat sink)
  • This item is New
  • 1-Year Manufacturer's Warranty
Frequently Asked Questions for this Product:

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Return Policy
You may return this item in its original condition within 14-Days for a refund, minus a 20% restocking fee, and minus any shipping charges we paid to get the item to you.