Focusrite Single Channel Classic ISA Mic Preamp/DI ISA One

 Focusrite Single Channel Classic ISA Mic Preamp/DI ISA One

A single-channel, transformer-based microphone preamp is designed by Focusrite named as ISA One. It is based on the original ISA 110 preamp that formed the foundation of each channel of the legendary Forte console. The ISA One is featured with the classic vintage topology and includes a custom Zobel network and the L1538 Lundahl transformer.  

The unit is included with a line input on XLR and 1/4" TRS phone jacks in addition to switchable input impedance settings for the microphone preamp. A dedicated gain control, a 1/4" TRS output for routing to an amplifier, active or passive impedance switch, and an independent XLR output on the rear is featured in an independent DI channel.  

• Classic single-channel Focusrite microphone preamp with Independent DI
• Ideal for both engineers and demanding performers alike, featuring independent gain control, an output for routing to an amp, an independent XLR output on the rear and routing to the optional ADC
• Four, carefully selected, switchable input-impedance levels (including the original ISA 110 setting), to match or enhance the performance of any microphone
• Headphone output with volume control can feed either a sum of the two inputs to the headphones output, or an external stereo cue mix (such as a stereo mix feed from an interface) via two TRS Jack inputs on the rear of the unit
• Optional stereo 192 kHz analog-to-digital conversion card utilizes cutting-edge conversion technology and Focusrite analog circuitry to deliver the highest A/D performance with a dynamic range of 119 dB
• Dedicated insert point allows the user to place extra processing such as an EQ or compressor, between the preamplifier or DI and the optional converter

Focusrite ISA ONE Specs

• Number of Channels: Single
• Inputs: 1 x XLR Microphone 1 x XLR Line 1 x 1/4" TRS phone Line 1 x 1/4" TRS phone Instrument 1 x 1/4" TRS phone External Input 1 x 1/4" TRS phone Cue Left 1 x 1/4" TRS phone Cue Right 1 x 1/4" TRS phone Return
• Output: 1 x XLR Line 1 x XLR DI 1 x 1/4" TS DI Thru 1 x 1/4" TRS phone Send 1 x 1/4" TRS phone Headphone
• Phantom Power: 48V
• Multi Function: No
• Gain Range: Mic: 0dB to 60dB in 10dB steps with 20dB of variable gain Line: -20dB to +10dB in 10dB steps with 20dB of variable gain
• Maximum Output Level: Not specified by manufacturer
• Frequency Response: 16Hz to 118kHz, -3.0dB @ maximum gain
• Noise: Mic SNR: 106dB Line SNR: 120dB
• Dimensions (WxDxH): M8.7 x 10/11.4 x 4.1" (220 x 254/290 x 104 mm)
• Weight: 8.6 lbs (3.9 kg)

Packaging Info

• Package Weight: 12.9 lb
• Box Dimensions (LxWxH): 16.2 x 15.5 x 9.3"