Focusrite ISA One w/ 430ADC Bundle

At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer — essentially the same circuit, based on the original ISA110, that has been used for 30 years in successive Focusrite designs. The input transformer imparts a special character to the sound that can't be truly emulated in any other way: inseparable from the microphone itself, the transformer input stage is ideal for use with classic microphones. But this mic pre has a twist the original didn't have, which makes it far more versatile: four carefully selected impedances allow you to match the microphone to input in different ways. Bring out the character of a classic mic that emphasises a special feature, or go for a totally transparent, modern sound — it's up to you. Whether you're an artist, engineer or producer, you'll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching, an amplifier output, and its own feed to the optional A/D converter and separate rear-panel XLR output.

Features:

• Classic Focusrite ISA series transformer-based microphone preamplifier
• Flexible independent DI channel
• Switchable impedance
• Dedicated insert point
• Optional stereo 192kHz A-D converter
• Lundahl LL1538 Input Transformer
• Backlit VU meter with variable calibration

What's Included:

• 1 x Focusrite ISA One Desktop Microphone Preamp
• 1 x Focusrite 430ADC 2 Channel ISA A/D Option for ISA 430 MK

Specifications:

• Gain Range (Mic): 0dB to 60dB in 10dB steps 20 dB of variable gain
• Signal-To-Noise Ratio (Mic): 106 dB relative to max headroom (9dBu)
• Frequency Response (Mic): At minimum gain (0 dB)-0.5dB down at 10Hz and -3dB down at 125kHz
• Gain Range (Line): -20dB to 10dB in 10dB steps 20 dB of variable gain
• Frequency Response (Line): At unity gain (0 dB)-0.3dB down at 10Hz and -3dB down at 200kHz
• Gain Range (Instrument): 10dB to 40dB continuously variable
• High-Pass Filter (Roll-Off): 18 dB per octave (3 pole filter)
• High-Pass Filter Frequency: Fixed 75Hz measured at the 3dB down point