Unleash your audio creativity with the Focusrite ISA-ONE Professional Mic Preamplifier! This amazing device brings you Focusrite's renowned ISA transformer-based preamp in a rugged yet portable chassis, all at an incredibly affordable price.
• Classic Vintage Sound: It features the classic vintage microphone preamplifier topology from the original ISA110 module, which was the cornerstone of Focusrite's legendary Forté console.
• Flexible Connectivity: Comes with a line input, an independent D.I. channel, dedicated gain control, active or passive impedance switch, a TRS Jack output for routing to an amp, and an independent XLR output at the rear. Ideal for engineers mixing guitar signals and performers seeking a classic solution for both guitar and vocals.
• Upgrade Option: You can choose to upgrade with an optional digital card that offers the best A-D performance in its class, with a dynamic range of 118dB.
Whether you're a professional audio engineer or a passionate musician, the Focusrite ISA-ONE is here to take your recordings to the next level. Its specifications include:
Mic Input Response: Gain range from 0dB to 60dB in 10dB steps plus 20 dB of variable gain. Input Impedance can be switched between 600 Ohms, 1400 Ohms, 2400 Ohms, and 6800 Ohms. EIN is -126dB at 60dB of gain. Noise at main output with gain at unity is -97dBu. Signal to noise ratio relative to max headroom is 106dB. THD at medium gain is 0.0009%. Frequency response at minimum gain is -0.5dB down at 10Hz and -3dB down at 125kHz. Frequency response at maximum gain is -3dB down at 16Hz and -3dB down 118kHz. CMRR is 98dB. Crosstalk between channels is very low.
Line Input Response: Gain range from -20dB to +10dB in 10dB steps plus 20 dB of variable gain. Input Impedance is 10k from 10Hz to 200kHz. Noise at main output with gain at unity is -96dBu. Signal to noise ratio relative to max headroom is 120dB. Signal to noise ratio relative to 0dBFS is 118dB. THD at unity gain is 0.001%. Frequency Response at unity gain is -0.3dB down at 10Hz and -3dB down at 200kHz.
Instrument Input Response: Gain range from 10dB to 40dB continuously variable. Input Impedance can be set to high (greater than1M) or low (greater than 300k). Noise at minimum gain is -92dBu. Noise at maximum gain is -62dBu. THD at minimum gain is 0.001%. Frequency Response at 10dB gain with -10dB input is 10Hz-100kHz +/- 0.6dB. Frequency Response at 40dB gain with -40dB input is -2.5dB down at 10Hz and 0dB at 100kHz.
High Pass Filter: Roll off at 18dB per octave with a 3 pole filter and a fixed frequency of 75Hz measured at the 3dB down point.
Meters: Moving coil (MC) meter is factory calibrated to 0VU = +4dBu with 1kHz sinewave. Can be adjusted to allow 0VU to equal +10dBu to +26dBu. Peak LED meters are calibrated in the detent position for 0dBFS = +22dBu and can also be adjusted. Routing for meters is well-defined.
Front and Rear Connectivity: Analogue Channel Inputs include Mic input (XLR x 1), Line input (XLR x 1 and TRS x1), Instrument input TRS Jack (XLR x 1), External ADC input (TRS Jack x 1), Return (TRS Jack x 1). Analogue Channel Outputs include Send (TRS Jack x 1), Balanced line output (XLR x 1), DI output (XLR x 1), DI through (TS Jack x 1). Analogue Channel Additional I/O includes Cue mix left input (TRS Jack x 1), Cue mix right input (TRS Jack x 1), Headphones output (TRS Jack x 1). Weight is 3.9kg (8.6Ibs). Dimensions are 220mm (W) x 104mm (H) x 254 - 290mm (D - top to bottom) (8.66' (W) x 4.1' (H) x 10' - 11.4' (D - top to bottom)).
The Focusrite ISA-ONE Pro Mic Preamplifier is a must-have for audio enthusiasts. Whether you're in a professional recording studio or jamming at home, this preamplifier is perfect. It's designed for audio engineers who want to enhance their recordings and musicians looking for a high-quality solution for their vocals and instruments. With its rugged and portable chassis, you can take it anywhere. The dimensions are 220mm (W) x 104mm (H) x 254 - 290mm (D - top to bottom) (8.66' (W) x 4.1' (H) x 10' - 11.4' (D - top to bottom)) and it weighs 3.9kg (8.6Ibs). Get ready to create amazing audio with the Focusrite ISA-ONE Pro Mic Preamplifier.
