Focusrite : ISA 828 MkII Focusrite

EIGHT-CHANNEL MIC PRE AND OPTIONAL A-D CARD WITH DANTE, 192kHz, 24-bit, Phantom Power : +48V

หมายเลขสินค้า : ISA 828 MkII

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EIGHT-CHANNEL MIC PRE AND OPTIONAL A-D CARD WITH DANTE, 192kHz, 24-bit, Phantom Power : +48V

ไมค์ปรีแอมป์ 8 ชาแนล สุด classic มาพร้อมกับ Lundahl LL1538 transformers ในทุกช่อง Input โดยช่อง Input ที่ 1-4 สามารถใช้เป็น instrument inputs ได้ มีความละเอียดสูงสุดอยู่ที่ 24-bit/192kHz และมี Phantom Power +48V

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.

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 : +25dBu, min gain, medium Z
Frequency Response : (10Hz - 122kHz): 10Hz - 122kHz ±3dB, unity 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: -65dB, 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

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 = 470O, High = 2.4MO
Max. Input Level : +18dBu, min gain, low Z
Frequency Response (20Hz - 20kHz) : 20Hz - 20kHz ±0.1dB, min gain, low Z
Frequency Response (10Hz - 110kHz) : 10Hz - 110kHz ±1.2dB, min gain, low Z
THD + N : -83dB (0.0071%) @ -1dBr, min gain, low Z
Signal-To-Noise Ratio : 100dB 'A'-Weighted (typical), min gain, low Z

INSTRUMENT INPUTS

CROSSTALK

Microphone Talkback : -80dB; 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

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)

ISA 828 MkII - User Manual - English.pdf

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