International House of Music
Return Policy | Shipping Policy | Contact Us | View Cart
  Search
Mon-Sat 9am - 6:30pm
Sun 10am - 6pm
Guitars/Bass | Drums & Perc | Keyboards | Computer Audio | Bajo Sextos | Accordions | Accessories | Used Gear
About Us History News Media Press Artists Events Contact Us
  Specials
 Brands
 Top Sellers
 New Products
 Celebrities
 News
  Live Audio
Loudspeakers
Stage Monitors & Headphones
Mixers
Microphones
PA Accesories
Power Amps
Signal Processing
Cases, Racks & Bags
Power Management
Commercial Sound
Portable PA Systems
  DJ & Lighting
DJ Mixers
Turntables
DJ Controllers & Effects
CD/MP3 Players
Intelligent Lighting
LED video screens
LEDS
Stage Lighting & Dimmers
Fog, Bubble and Snow Machines
DJ Lighting
Intelligent Lighting Controllers
DJ Software
Karaoke
Truss and Light Stands
Lighting Control Software
DMX Cables
DJ Accessories
Racks/Cases & Cofins
  Latin Instruments
Accordions
Bajo Quintos
Latin Percussion
Bajo Sextos
Mariachi
  Band & Orchestra
Trombones
Alto Horn
Trumpets
Sousaphone
Saxophones
Flutes
Band Accessories
Woodwind Instrument Mouthpieces
Clarinets
Harmonicas
Tubas
Brass Instrument Mouthpieces
Band Percussion
Piccolos
Baritone
  Drums & Perc
Drum Sets
Electronic Drum Sets
Drum Machines
Electronic Percussion
Latin Percussion
Cymbals
Drum Hardware
Snares
Audio for Drums
Drum Accessories
Drum Sticks
Drum Heads
  Guitars/Bass
Electric Guitars
Acoustic Guitars
Classical Guitars
Bass Guitars
Instrument care
Guitar Amplifiers
Bass Amplifiers
Compact & Twin Pedals
Multi-Effect pedals
Strings
Tuners
Guitar/Bass Accessories
Country Guitars
Ukulele
Pickup's
Ukulele Accessories
  Keyboards
Arranger Workstation
Synthesizers
Keyboard Controllers
Home Keyboards
Sound Modules
Keyboard Accessories
Electronic Pianos & Organs
Keyboard Amplifiers
Expansion Boards
  Computer Audio
Music Software & Plug Ins
Audio Interfaces
MIDI Interfaces
Control Surfaces
Storage & Back Ups
PC Laptops
Computer Accessories & Media
PCI Audio Interfaces
Digital Converters
  Studio & Recording
Multitrack Digital Workstations
Mixers
Microphones
Studio Monitors
Pre-Amps
Signal Processing
CD/DVD Recorders
Acoustic Treatment
Studio Furniture
Studio Essentials
  Accessories
Accordion Accessories
Drum Accessories
Microphone Accessories
Keyboard Accessories
Recording Accessories
Live Audio Accessories
DJ Accessories
Guitar Accessories
Band Accessories
  Video
Switchers
Intercom
Converters
  Studio & Recording > Pre-Amps > Focusrite ISA 828

Focusrite ISA 828

Model Number: ISA 828
Brand:Focusrite
Please Contact Us For Price

Focusrite ISA 828

The ISA828 eight channel microphone pre-amplifier provides eight original ISA transformer-based pre amps in a single robust 2U chassis, offering the Focusrite signature sound at its lowest cost per channel to date.

The eight ISA-series transformer-based microphone pre amps feature the same classic microphone pre-amplifier design as the original ISA110 module from Focusrite's critically acclaimed Forte console (including the original Lundahl L1538 transformer and bespoke zobel network).

The pre-amps are complemented by eight line inputs, eight line outputs and an optional eight channel 192kHz ADC boasting the widest dynamic range of any converter to date. Thanks to its convenient 25 pin D-Type connectors, the ISA828 also integrates quickly and seamlessly with ProTools HD, as well as other popular hard disc recorders and mixing desks.

The microphone input stage additionally includes a variable impedance circuit, allowing the user to switch between four carefully selected input impedance settings. The original ISA110 setting is supplemented by three further impedance settings to either perfectly match the pre-amp with any microphone, thus maximizing level, or to use different settings creatively to shape the sound of the microphone being used.

The four front panel instrument inputs also feature high and low impedance options to provide a comprehensive and accessible DI solution. Insert switches are also featured on every channel, should the need arise to place extra processing between the pre amp and converter. Vintage design 75 Hz / 18dB per octave high pass filters are also provided on every channel, ensuring unwanted low frequencies are effectively eliminated.

The ISA828?s new optional eight-channel 192kHz ADC is the first audio ADC to utilise Texas Instruments Burr-Brown Pro Audio Amplifiers and Flagship Analog to Digital Converter PCM4220 chips. This cutting-edge technology is encompassed within Focusrite?s own custom analogue circuitry to provide eight channels of unparalleled A/D conversion, delivering a dynamic range of 122dB and jitter at less than 250 picoseconds.

Finally, every channel features a six LED input meter, complete with global precise meter trim. Metering has been designed to utilise the same reference points as Digidesign?s Pro Tools HD? system and provides clear and accurate input metering, independent of the DAW.

Key Features

  • Eight ISA series transformer-based pre amps
    In a single robust 2U chassis, offering the classic Focusrite pre at its lowest cost-per-channel to date.
  • New Optional Eight Channel 192kHz ADC
    Embodies cutting-edge conversion technology, incorporating Focusrite analogue circuitry to deliver the best A/D performance on the market, bar none
  • Convenient 25 pin D-Type connectors
    The ISA828 integrates quickly and seamlessly with ProTools HD, as well as other popular hard disk recorders and mixing desks.
  • Switchable Impedance
    Selectable per channel; choose one of four carefully selected input impedances, including the original ISA110 setting, to suit any microphone.
  • Direct Instrument inputs
    Each instrument input features high and low impedance options to provide a comprehensive and accessible DI solution.
  • Inserting available on every channel
    Allows external devices to be inserted between the pre amp and the ADC, using the 25-pin D-type cable.
  • High pass filter, Phase reverse and Phantom power
    Each has a dedicated switch, independent on each channel.
  • Six LED input meter
    Complete with precise meter trim - Designed to utilise the same reference points as Digidesign?s HD?
  • Specifications

    Mic Input Response
    ? Gain range: 0dB to 60dB in 10dB steps
    ? Input Impedance, variable: 600Ω, 1k4Ω, 2k4Ω, 6k8Ω
    ? EIN (equivalent input noise): -126dB measured at 60dB of gain with 150 Ohm terminating impedance and 22Hz/22kHz bandpass filter
    ? Noise at main output with gain at unity (0dB): -97dBu measured with a 22Hz/22kHz bandpass filter
    ? Signal to noise ratio relative to max headroom (9dBu): 106dB
    ? THD at medium gain (30dB): 0.0008% measured with a 1kHz -20dBu input signal and with a 22Hz/22kHz bandpass filter
    ? Frequency response at minimum gain (0dB): -0.5dB down at 10Hz and ?3dB down at 110kHz
    ? Frequency response at maximum gain (60dB): ?3dB down at 16Hz and ?3dB down 85kHz
    ? CMRR: 91.8dB (Channel 1, 1kHz, maxiumum gain)
    ? Crosstalk Channel to Channel: with 10dB@1kHz input to chA, chB output =102dBrA. With 10dB@10kHz input to chA, chB output = 84dBrA

    Line Input Response
    ? Gain range: -20dB to +10dB in 10dB steps
    ? Input Impedance: 10kΩ from 10Hz to 200kHz
    ? Noise at main output with gain at unity (0dB): -96dBu measured with a 22Hz/22kHz bandpass filter
    ? Signal to noise ratio relative to max headroom (24dBu): 120dB
    ? Signal to noise ratio relative to 0dBFS(+22dBu): 118dB
    ? THD at unity gain (0dB): 0.001% measured with a 0dBu input signal and with a 22Hz/22kHz bandpass filter
    ? Frequency Response at unity gain (0dB): 0.3dB down at 10Hz and ?3dB down at 122kHz

    Instrument Input Response
    ? Gain range: 10dB to 40dB continuously variable
    ? Input Impedance: 1MΩ or 300kΩ
    ? Noise at minimum gain (+10dB): -90dBu measured with a 22Hz/22kHz bandpass filter
    ? Noise at maximum gain (+40dB): -62dBu measured with a 22Hz/22kHz bandpass filter
    ? THD at minimum gain (+10dB): 0.002% measured with a 10dBu input signal and with a 22Hz/22kHz bandpass filter
    ? Frequency Response at 10dB gain with -10dB input: 10Hz-200kHz +/- 0.6dB
    ? Frequency Response at 40dB gain with -40dB input: -2.5dB down at 10Hz and 0dB at 200kHz

    High Pass Filter
    ? Roll off: 18dB per octave 3 pole filter
    ? Fixed Frequency 75Hz measured at the 3dB down point

    Weight
    ? 8.84kg
    ? 19.5Ibs

    Dimensions
    ? 484mm (W) x 85mm (H) x 305mm (D) (350mm depth with heat sink)
    ? 19" (W) x 3.5" (H) x 12" (D) (13.8" depth with heat sink)
GOES GOOD WITH...
  Focusrite ISA828 ADC
Model Number: ISA828 ADC
 


This site uses a Secure (SSL) Certificate to protect your information.

View Cart | Return Policy | Shipping Policy | Contact Us

© 2014 iHomi. All Rights Reserved.
* Pricing and Product availability are subject to change without notification



339 S. Broadway Los Angeles, CA 90013
Phone: (213) 628-9161

Web Design by The Web Corner