Focusrite ISA828 MKII

Eight Channels of Legendary Focusrite Preamplification

The Focusrite ISA828 MKII puts eight of Focusrite’s legendary ISA microphone preamps into a compact 2U chassis, giving you amazing sound quality in a unit that’s convenient for your studio or live rig, while being gentle on your budget. The original ISA828 was a huge hit at Sweetwater and certainly a tough act to follow; but Focusrite, as always, rose to the challenge with the ISA828 MKII, which features several improvements such as a new switching power supply that delivers more efficient energy usage, reduced heat generation, and increased operational reliability.

World-class sound and flexibility

The ISA828 MKII features a variable impedance circuit with several settings, and also includes eight line/four instrument inputs with high and low impedance options. Using 25-pin D-type connectors, this preamp is easy to interface with Pro Tools HD rigs, as well as other popular DAWs and mixing desks. Another new feature is a slot for the optional Focusrite ISA ADN8 8-channel A-D card, for high-quality conversion to Dante, ADAT, and AES3 formats at sampling rates of up to 24-bit/192kHz. The preamps are complemented by eight rear-panel line inputs and four front-panel instrument inputs.

Variable impedance and highpass filters

The microphone input stage includes a variable impedance circuit, letting you switch between four carefully selected input impedance settings. The original ISA110 setting is supplemented by three additional impedance settings to perfectly match/creatively mismatch the preamp with any microphone in your locker. 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 each channel, should the need arise to place outboard processing between the preamp and the optional ISA ADN8 converter card. A highpass filter, polarity reverse switch, and 6-segment LED peak level meter are also provided on every channel.

The affordable way to Focusrite your studio

The ISA828 MKII features eight of Focusrite’s classic ISA transformer-balanced preamps in a single robust 2U chassis. The eight preamps feature the same vintage preamplifier design as the original ISA110 module from Focusrite’s critically acclaimed Forte console (including the original Lundahl L1538 transformer). If you’ve been wanting to get the signature Focusrite sound for your studio, the ISA828 MKII is an ideal way to achieve it — at a remarkably low per-channel cost!

Focusrite ISA828 MKII Features:

• 8-channel mic/line preamp with front-panel instrument inputs (channels 1–4)
• Legendary ISA mic preamp design featuring Lundahl LL1538 input transformer
• Switching power supply allows for efficient, cool operation and greater reliability
• Line inputs with dedicated input connectors and front-panel selector switches
• Switchable input impedance, including classic ISA 110 setting
• Slot for optional ISA ADN8 8-channel A-D card (available separately)
• Switchable insert points when used with ISA ADN8 card
• Per-channel highpass filter, polarity reverse, and 6-segment LED peak level meter
• Free Brainworx bx_console re-creation of Focusrite’s ISA 110 and ISA 130 modules

• Preamp Type: Solid State
• Number of Channels: 8
• Phantom Power: Yes
• EQ: Highpass Filter (75Hz, 18dB/Octave, Switchable per Channel)
• Sample Rate: Up to 192kHz
• Bit Depth: Up to 24-bit
• Analog Inputs: 8 x XLR, 12 x 1/4″ (8 Line, 4 Instrument), 1 X 8-Channel DB-25 (8 channels)
• Analog Outputs: 1 x DB-25 (8 channels)
• Frequency Response: 20Hz-20kHz (±0.1dB)
• Software: RedNet Control
• Rack Spaces: 2U
• Power Source: Standard IEC AC cable (included)
• Height: 3.46″
• Depth: 12.80″
• Width: 18.98″
• Weight: 15.55 lbs.