Focusrite ISA One Analog Classic Signal-Channel Microphone Preamp

Focusrite ISA One

 is a single channel, transformer-based microphone preamp, based on the original ISA 110 preamp that formed the cornerstone of each channel of the legendary Forte console. It features classic vintage topology and includes the Lundahl L1538 transformer and a custom Zobel network.

The unit contains a line input on XLR and 1/4" TRS phone jacks with the exception of switchable input impedance settings for the microphone preamp. An independent DI channel features a dedicated gain control, active or passive impedance switch, a 1/4" TRS output for routing to an amplifier, and an independent XLR output on the rear.

The ISA One features an insert point should the need arise to place extra signal processing between the preamp or DI, and the optional analog-to-digital converter. Phantom power, phase reverse and a 75Hz, 18dB/octave high-pass filter are also available from the angled front fascia.

Independent input metering for both channels is provided by a moving coil VU meter with variable calibration to suit analog and digital recording media, alongside two six-LED peak meters. Inputs can be metered either pre- or post-insert. The meter calibrations utilize the same reference points as Digidesign's Pro Tools HD systems, allowing effortless integration with Pro Tools.

The Focusrite preamp is renowned for its transparency, but there's also that subtle warmth that transformer core saturation contributes. This seeming contradiction of warmth plus beautifully open, unrestricted high frequencies, is a classic hallmark of the mid '80s Focusrite designs.

Item Includes

• Focusrite ISA One Microphone Preamp
• AC Power Cable
• Flight Case
• One (1) Year Warranty

• Classic single-channel Focusrite microphone preamp with Independent DI
• Four, carefully selected, switchable input-impedance levels (including the original ISA 110 setting), to match or enhance the performance of any microphone
• 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
• Optional stereo 192kHz 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 119dB
• 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
• Includes rugged custom flight case, built to protect the ISA One from the rigors of the road. Rugged plywood construction with a solid polypropylene exterior and reinforced corners
• 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

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)	8.7 x 10/11.4 x 4.1" (220 x 254/290 x 104 mm)
Weight	8.6 lbs (3.9 kg)
Specialties	Custom flight case

	Focusrite RedNet 4 8-Channel Microphone Preamp / A-D interface Focusrite RedNet 4 mic preamp/interface puts eight premium Focusrite preamps and eight line inputs into your studio network via a single Ethernet cable. The...	Sale Price: $2,499.99 Save: 17%
	Focusrite OctoPre MkII Dynamic 8-channel Microphone Preamplifier Focusrite OctoPre MkII Dynamic gives you 8 channels of Focusrite microphone pre-amplification, 8 VCA-based Red 3-derived compressors, and built-in...	Sale Price: $699.99 Save: 13%
	Focusrite ISA428 MkII 4-channel Microphone Preamp Focusrite ISA428 MkII is a 4-channel Transformer-based Mic Preamp that features the same classic circuitry and renowned audio quality found in the original at...	Sale Price: $1,499.99 Save: 17%
	Focusrite ISA One Digital Single-Channel Mic Preamp Focusrite ISA One Digital  is a single channel, transformer-based microphone preamp. ISA One Digital is the perfect preamp for singer/songwriters, thanks to...	Sale Price: $799.99 Save: 20%
	Focusrite OctoPre MkII 8 Channel Microphone Preamp Focusrite OctoPre MkII  is an 8-channel microphone/line/instrument preamplifier with built-in 24-bit/96 kHz ADAT output. The Focusrite OctoPre MkII unit is a...	Sale Price: $499.00 Save: 17%
	Focusrite TrakMaster PRO Single-Channel Preamplifier B-Stock A B-Stock is a like new, refurbished unit. It has been fully tested by the facotry to meet its original stardard with a seal of approval from the manufacturer....	Sale Price: $249.99 Save: 38%
	Focusrite ISA828 8 Channel Microphone Preamp Focusrite ISA828  provides eight original ISA transformer-based preamps in a single robust 2U chassis, offering the Focusrite signature sound at...	Sale Price: $2,999.99

• Number of Reviews:  ( 0 )
• Share your thoughts with other customers on Focusrite ISA One Analog Classic Signal-Channel Microphone Preamp.
• Write Your Buying Experience