Focusrite ISA 828 MkII 8-Channel Transformer Mic Preamp (Warehouse Deal, Minor marks)
Channels
Talk to our Experts
Talk to our Experts
Have questions about this product? Our team is here to help!
- Call us: (647) 953-1559
- Email: contact@blackoutaudio.com
- Live Chat: Monday-Friday 12:30pm to 7:30pm
Shipping, Returns & Financing
Orders above $199 qualify for Free Standard Shipping.
A few orders are not eligible: items that need specialty shipping (certain cases, stands and other gear that requires special handling), and orders shipping to Newfoundland and Labrador, the Northwest Territories or Nunavut.
Carriers sometimes charge far more for oversized freight to certain locations. In that rare case, we pay most of the extra and ask you to cover a small part.
For international shipping, please request a quote through the contact form.
| Province | Standard Shipping | Express Shipping |
|---|---|---|
| ON | $19 | $39 |
| QC, MB | $29 | $69 |
| Other | $39 | $119 |
Payment & Financing Options
We accept credit and debit cards, Apple Pay, Google Pay, Shop Pay, and PayPal.
Affirm and Sezzle financing are available for most products. For Affirm, select Shop Pay when checking out. Please note that order cancellations or refunds are not available for financed purchases.
Sezzle: eligible customers can split a purchase into 4 interest-free payments over 6 weeks. Approval and payment terms depend on the purchase amount and an eligibility check, may not be available in all provinces or territories, and are shown at checkout. Payment options are provided through Sezzle. For more information, please see sezzle.com/how-it-works.
Affirm: eligible customers can pay over time in monthly instalments. Your rate and available terms depend on an eligibility check based on creditworthiness, your purchase amount, and applicable provincial limits, and may not be available in all provinces or territories. Actual terms, the payment schedule, and any required down payment are shown at checkout. Payment options are provided through Affirm Canada Holdings Ltd. For more information, please see affirm.com/how-it-works.
Description
Warehouse Deal: Minor cosmetic marks on the unit.
The Focusrite ISA 828 MkII is an eight-channel transformer-based mic preamp in a 2U rackmount chassis, featuring eight ISA preamp circuits with Lundahl LL1538 input transformers and a rear-panel expansion slot for the optional ISA ADN8 A-D converter card.
Preamp Controls
Each of the eight channels offers up to 80dB of gain (60dB in 10dB steps, plus 20dB of variable trim) with four-position input impedance switching (600Ω, 1.4kΩ ISA 110, 2.4kΩ, 6.8kΩ). Channels 1 through 4 include front-panel instrument inputs for direct recording of guitars and basses. A 75Hz high-pass filter (18dB/octave) is independently switchable per channel. Rear-panel insert points on every channel allow external processing.
Outputs and Digital Expansion
Analogue outputs are provided on a DB-25 connector (AES59 Tascam Analogue pinout). A second rear-panel DB-25 provides eight additional A-D inputs when the optional ISA ADN8 card is installed, enabling up to 16 channels of A-D conversion from a single unit with Dante, AES3, and ADAT connectivity.
Connectivity
- 8 x XLR mic inputs (rear panel)
- 8 x 1/4" TRS line inputs (rear panel)
- 4 x 1/4" TS instrument inputs (front panel, channels 1-4)
- 8 x balanced analogue outputs (DB-25, AES59 pinout)
- 8 x A-D inputs (DB-25, active with optional ADN8 card)
- Switchable insert points per channel
- Optional ISA ADN8 digital card slot
Specifications
- Mic gain range: 0 to 60dB (10dB steps) + 20dB trim
- Mic input impedance: 600Ω, 1.4kΩ (ISA 110), 2.4kΩ, 6.8kΩ
- Mic EIN: <-123dBu (A-weighted)
- Signal-to-noise ratio: 122dB (A-weighted)
- Frequency response: 20Hz to 20kHz +/-0.2dB
- High-pass filter: 75Hz, 18dB/octave, switchable per channel
- Phantom power: +48V, independently switchable per channel
- Form factor: 2U rackmount
- Power: Internal PSU, 100-240V AC