Detail 01
Eight mic preamps with Lundahl LL1538 transformers
Each of the eight inputs includes this transformer model.
Product detailSKU #1500000338178
FocusriteISA 828 MkII 8-Channel Mic Preamp/DI
1/4
Independent shopping perspective
The Korena take
ISA 828 MkII puts eight microphone preamps into a rack-ready front end for a permanently connected studio setup. Every input uses a Lundahl LL1538 transformer, and each channel can take mic or line sources; channels 1–4 also provide front-panel instrument inputs for immediate access. Variable mic impedance, including an ISA 110 setting, gives engineers additional input choices. High-pass filters, six-segment LED metering, and switchable rear inserts support source setup and inline processor routing. The gain structure reaches 80 dB with variable trim.
Strong match
Who this is for
- Permanent rack installations where mic- and line-level sources remain connected at the same time.
- Sessions needing eight microphone preamps plus front-panel instrument access on channels one through four.
- Routing compressors or EQs through switchable rear-panel insert points.
Consider the trade-offs
When to look elsewhere
- Setups requiring MIDI I/O; no MIDI I/O is provided.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Up to 80 dB gain range
Up to 60 dB of gain is supplemented by up to 20 dB of continuously variable trim.
Detail 03
Variable mic input impedance
Each mic preamp offers impedance choices, including an ISA 110 setting.
Detail 04
Switchable rear-panel inserts
Inline processors such as compressors or EQs can be connected in the signal path.
Detail 05
Six-segment LED meters
Each channel has LED level metering.
Detail 06
Rack-mountable; 3.46 × 18.98 × 12.80 in.
Designed for rack installation with the listed height, width, and depth.
Final check
Know before you order
- 01There is no MIDI I/O.
- 02Instrument inputs are available only on channels 1–4; all channels offer mic or line inputs.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can mic and line sources stay connected together?
Yes. Dedicated mic- and line-level connectors allow all sources to be connected simultaneously.
02How many instrument inputs are on the front panel?
Four: channels 1 through 4 include front-panel instrument inputs.
03Does it provide phantom power?
Yes.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Mic Preamps
- 8
2 detailsConnections & power
- XLR Only Jacks
- 8
- Phantom Power
- Yes
5 detailsSize & weight
- Weight
- 15.55
- Max Bit Depth
- 24-bit
- Depth
- 12.80 inch
- Width
- 18.98 inch
- Height
- 3.46 inch
7 detailsOther
- Aes Ebu Dsub
- 1
- XLR Out
- 0
- Rack Mountable
- Yes
- Max Sampling Rate
- 192kHz
- Metering
- LED meters
- Word Clock I O
- Out
- MIDI I O
- No
