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The STX 100 represents an affordable alternative for employing the same Spectra Sonics technology of our famous recording desks made over 40 years ago. The unique circuit topology of the STX 100 utilizes a 100 series discrete preamplifier design that was at the heart of every console built by the company. The result is unequaled performance in terms of expanded dynamic range (headroom), low noise and distortion, as well as extended harmonic content of the amplified signal. The STX 100 is a high-quality product manufactured in the US by Spectra 1964 at our Ogden facility. (Over 95% of the sourced components within all Spectra1964 originate from the US or European suppliers).

  • GAIN: 64db

  • THD: Less than .01% @20Hz-20KHz

  • SIGNAL/NOISE: Better than 120dB (unweighted)

  • MAXIMUM OUTPUT: +18dBm, 20Hz-20KHz

  • POWER REQUIREMENT: Less than 50mA, +18dBm

  • INPUT/OUTPUT CONTROL: Continuously Variable/10dB Pad

  • INPUT IMPEDANCE: 600 Ohm, Nominal

  • OUTPUT IMPEDANCE: Less than 50 Ohms


  • PHANTOM: 48 Volts

  • POLARITY: 180 Degrees/Reverse/Mic or Line Input

STx 100 Users

Vance Powell

Matt Ross-Spang

Dave Cobb

Jake Sinclair

Malay Ho

Shooter Jennings

Dave Roe

Jason McGerr

Ben Tolliday

Matt Chamberlain

Jerry Roe

Andy Reed

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You've Heard it before. Spectra preamplifier modules have been used to record countless hit records across the decades, and helped to define the sound of American music from Memphis Soul, to Rock and Roll. Un-changed, and still un-matched, the Spectra sound is now available in a no compromise 500 series format. 


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