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Focusrite ISA828 MKII Eight Channel Preamp - Used From Focusrite
EIGHT-CHANNEL MIC PRE (no Dante or Optional Digital Card)
$2,150.00
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Manufacturer's Description from Focusrite
The ISA 828 MkII incorporates eight of Focusrite's classic mic preamps, with Lundahl LL1538 transformers on every input. Each channel has the option of mic or line inputs, while inputs 1-4 also feature instrument inputs on the front panel. Each mic pre has variable input impedance, to provide a range of subtly different sonic options when using microphones, including an 'ISA 110' setting, which replicates the impedance of the original Focusrite mic pre.
Up to 60dB of gain is available, with a further +20dB of continuously variable trim, providing a huge 80dB gain range. The high-pass filter has a fixed 75Hz frequency and 18dB / octave roll-off for minimising rumble, stand-borne noise and other low-frequency sounds. The ISA 828 MkII also features per-channel, six-segment LED meters, and switchable rear-panel insert points, which allow the use of inline processors such as compressors or EQs.
Dedicated connectors for mic and line-level inputs allow all sources to be connected simultaneously, making ISA 828 MkII perfect for permanent installation in a rack. A switching power supply allows for efficient, cool operation, without sacrificing sound quality or performance, and increasing reliability over its predecessor. The optional ISA ADN8 analogue-to-digital expansion card provides eight Dante, ADAT and AES3 outputs at sampling rates of up to 24-bit / 192kHz.And as with all Focusrite Pro products, wherever you happen to be in the world, you can rely on a three-year warranty if any Focusrite Pro hardware needs repairing or replacing due to a manufacturing fault.
Features:
- Optional A-D card with up to 192kHz, 24-bit sampling offers high-quality digital audio conversion to Dante, ADAT and AES3
- Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
- Switching power supply design allows for efficient and cool operation
- Front-panel instrument inputs to first four channels
- Line inputs with dedicated input connectors and front-panel select switch
- Switchable input impedance including classic ISA 110 setting
- High-pass filter with fixed 75Hz frequency and 18dB/octave roll-off
- Switchable insert points when used with A-D card
- Per-channel six-segment LED peak-level meters
- As with all Focusrite products, you'll also benefit from a three-year warranty
- Brainworx bx_console Focusrite – exclusive plug-in that faithfully captures the sound, feel and styling of the original Focusrite ISA 110 Equaliser and ISA 130 Dynamics Modules
About Manufacturer
The Focusrite brand was established way back in 1985 and the founding principles of the company were to develop products that sounded more musical, in addition to just measuring well - today,we still carry these founding principles forward in our class-leading and award-winning designs. We measure our success by the success of you, our clients, and you will find Focusrite product prominent in professional and project studios throughout the world. Based just outside of London, we work with the best design talent throughout the world to bring you the tools to enhance the way you work. Our product is made with pride and principle in a highly automated ISO 9002 factory with significant level of test by engineers who themselves are musicians and understand the part our product plays in your process. Our commitment: We understand that how your project sounds to you is your most important concern. We are totally dedicated and focused on designing and manufacturing product that will enable you to achieve this goal. Our design goals are that product should be easy to use, logically designed, give class-leading performance and give years of predictable performance. We strive to continuously improve ourselves in these respects - our principal concern is meeting your expectations. Our focus on quality is all consuming - it rules our daily life.
Specifications
MIC INPUTS
Gain Range
0dB to +30dB (30-60 switch disabled) and +30dB to +60dB (30-60 switch enabled) in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
+7dBu, min gain, medium Z
Frequency Response (20Hz - 20kHz)
20Hz - 20kHz ±0.2dB, min gain, medium Z
THD + N
-91dB (0.0028%) @ -1dBr, min gain, medium Z
EIN
-123dBu 'A'-Weighted (typical)
Signal-To-Noise Ratio
122dB 'A'-Weighted (typical), medium Z
Common-Mode Rejection Ratio
997Hz CMRR: -93dB, min gain, medium Z
Phantom Power
+48V, independently switchable per channel
High-Pass Filter
75Hz knee frequency, 18dB/Octave, independently switchable per channel
Phase
Inverts the phases of the selected input
Frequency Response (10Hz - 110kHz)
10Hz - 110kHz ±1.5dB, min gain, medium Z
WEIGHT AND DIMENSIONS
Weight (Without Accessories)
7.05kg / 15.55lbs
Weight (With Accessories)
7.48kg / 16.49lbs
Height
88mm / 3.46"
Width
482mm / 18.98"
Depth
325mm / 12.80"
LINE INPUTS
Gain Range
-20dB to +10dB in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
+25dBu, min gain, low Z
Frequency Response (20Hz - 20kHz)
20Hz - 20kHz ±0.1dB, min gain, low Z
THD + N
-91dB (0.0028%) @ -1dBr, min gain, low Z
Signal-To-Noise Ratio
122dB 'A'-Weighted (typical), min gain, low Z
Frequency Response (10Hz - 122kHz)
10Hz - 122kHz ±3dB, min gain, low Z
INSTRUMENT INPUTS
Gain Range
+10dB to +40dB with continuous gain using trim pot
CROSSTALK
Microphone Talkback
-60dB; 20Hz - 20kHz, min gain, medium Z
LINE CROSSTALK
Microphone Talkback
-80dB; 20Hz - 20kHz, min gain, medium Z
INSTRUMENT CROSSTALK
Microphone Talkback
-80dB; 20Hz - 20kHz, min gain, medium Z
FRONT PANEL CONNECTIVITY
Channel Count:
2 Channels In
Instrument Inputs
4 x 1/4" jack inputs
Instrument Inputs
4 x 1/4" jack inputs
REAR PANEL CONNECTIVITY
Mic Inputs
Input: 8 x Female XLR
LINE LEVEL
Channel Count
8 In and 8 Out
Input
8 x 1/4" jack inputs
Output
1 x DB-25 connectors (AES59)
INSERTS
Channel Count
8 In
Input
1 x DB-25 connectors (AES59)
DIGITAL CARD SLOT
Compatible Card
ISA ADN8
PSU
PSU
1 x IEC Input
REAR PANEL INDICATORS
Control Functions
1 x Pot (Meter Trim)
POWER
PSU
1 x Internal, 100-240V, 50/60Hz, consumption 35W.
HEAT PERFORMANCE
Operating Temperature
Operates at up to an ambient temperature of 40 degrees Celsius
FRONT PANEL INDICATORS
Control Functions
16 x Pots (Gain and Trim). 60 Switches (On/Off Switch, 30-60 Gain, +48V, Phase, HPF, Insert, Z In, Input, Meters Pre A-D, Clock Select and Ext. Word Clock)
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