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Focusrite ISA 828 8 Channel Mic Preamp

#MOIF828-1UK
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£2,449.00
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Repayments from £61.52 per month

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Focusrite ISA 828 Mic Pre Amp

ISA 828 incorporates eight of Focusrite's renowned mic pres in a simple-to-operate 2U enclosure, placing eight mic preamps, instrument inputs and line ins at your fingertips. The original Focusrite mic pre was designed to suit the microphones of the time; today's model makes one small change, adding three additional input impedances to the classic ISA 110 setting, allowing you to match any microphone, old or new, and access a wide range of sounds, from the character and warmth of a vintage mic to the clear transparency of a modern design.

Each mic pre has the option of mic, line or the front-panel instrument input, with variable input impedance to ensure you are getting the best performance from the source. Up to 60dB of gain is available on the four-position rotary and gain range switches, with a further +20dB of continuously variable trim, meaning a huge 80dB of gain is available should it be required. The high-pass filter features variable cut-off frequency between 16 and 420Hz. An array of 6-segment LED meters show peak signal level for the four mic pres, in addition to the four direct inputs to the optional A-D card. Switchable rear-panel insert points allow the use of inline processors such as compression.

  • Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
  • Line inputs with dedicated input connectors and front-panel switch
  • High-pass filters
  • Per-channel six-segment LED peak-level meters
  • Front-panel instrument inputs to first four channels
  • Switchable input impedance including classic ISA 110 setting
  • Switchable insert points when used with A-D card
  • Optional A-D card with up to 192kHz, 24-bit sampling via ADAT or AES3
  • Gain Range (Mic) 0 dB to 60 dB in 10 dB steps
  • Input Impedance (Mic) Variable, 600O, 1k4O, 2k4O, 6k8O
  • Noise At Main Output With Gain At Unity (0 DB) (Mic) -97 dBu measured with a 22 Hz / 22 kHz bandpass filter
  • Signal To Noise Ratio Relative To Max Headroom (9dBu) (Mic) 106 dB
  • THD At Medium Gain (30dB) (Mic) 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) (Mic) -0.5 dB down at 10 Hz and –3 dB down at 110kHz
  • Frequency Response At Maximum Gain (60 DB) (Mic) –3 dB down at 16 Hz and –3 dB down 85 kHz
  • CMRR (Mic) 91.8 dB (Channel 1, 1 kHz, maximum gain)
  • Input Impedance (Line) 10 kO from 10 Hz to 200 kHz
  • Gain Range (Line) -20 dB to 10 dB in 10 dB steps
  • Noise At Main Output With Gain At Unity (0 DB) (Line) -96 dBu measured with a 22 Hz / 22 kHz bandpass filter
  • Signal To Noise Ratio Relative To Max (Line) 120 dB
  • Signal To Noise Ratio Relative To 0dBFS( 22dBu) (Line) 118dB
  • THD At Unity Gain (0dB) (Line) 0.001 measured with a 0 dBu input signal and with a 22 Hz / 22 kHz bandpass filter
  • Frequency Response At Unity Gain (0dB) (Line) 0.3 dB down at 10 Hz and –3 dB down at 122 kHz
  • Gain Range (Instrument) 10 dB to 40 dB continuously variable
  • Input Impedance (Instrument) 1 MO or 300 kO
  • Noise At Minimum Gain ( 10 DB) (Instrument) -90 dBu measured with a 22 Hz / 22 kHz bandpass filter
  • Noise At Maximum Gain ( 40 DB) (Instrument) -62 dBu measured with a 22 Hz / 22 kHz bandpass filter
  • THD At Minimum Gain ( 10 DB) (Instrument) 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 (Instrument) 10 Hz - 200 kHz /- 0.6 dB
  • Frequency Response At 40 DB Gain With -40 DB Input (Instrument) -2.5 dB down at 10 Hz and 0 dB at 200 kHz
  • Roll Off 18 dB per octave 3 pole filter
  • Frequency (Instrument) Fixed 75Hz measured at the 3dB down point
  • Weight 8.84 kg (19.5 lbs)
  • Dimensions (W X H X D) 484mm (W) x 85mm (H) x 305mm (D) (350mm depth with heat sink)

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GAK.CO.UK LTD is registered in England and Wales 04578270. Registered office: 30 - 34 North Street Hailsham East Sussex BN27 1DW GAK.CO.UK LTD acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. GAK.CO.UK LTD is an appointed representative of The Guitar Amp and Keyboard Centre Limited which is authorised and regulated by the Financial Conduct Authority. GAK.CO.UK LTD FCA registration number is 731400. The Guitar Amp and Keyboard Centre Limited FCA registration number is 684977. Credit provided subject to age and status

V12 Retail Finance Limited. Registered in England and Wales 4585692. Registered office: One Arleston Way, Solihull, B90 4LH. Authorised and regulated by the Financial Conduct Authority. Our FCA reference number is 679653.

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