Sunrise S-TI Tube Interface with Flight Case – Rare & Sought After!

Sunrise S-TI Tube Interface with Flight Case – Rare & Sought After!


Out of stock

Here is a rare & discontinued item from "Sunrise Pickup Systems" - their ST-1 Tube Interface is not being made anymore and is now a sought after unit that you can get right here! We also have a couple of Sunrise Pickups and their Lo-Z D.I. Box Available on Separate Listings! The ST-I adds a lot of warmth and depth to an acoustic guitar for live performance & studio recordings when paired with Sunrise Pickups!

Includes Flight Case! (shown in photos)


"The Sunrise Tube Interface is an all vacuum tube, transformerless, high resolution line amplifier. The STI reveals nuance, detail and openness with a quality usually reserved for only the finest studio microphones. Reproducing the natural voice of an acoustic guitar in the studio with only a microphone has been surpassed by the Sunrise Pickup and STI, which has become the highest standard of the industry for both live performances and recording. The Interface delivers +20 dB of gain, and has two unbalanced outputs (XLR and 1/4") with headroom in excess of +30dBv. This Tube Preamp will deliver the sonic quality and resonance of the instrument being amplified. Frequency response is flat from 2Hz to 50kHz + or - 1 dB. The two 1/4" input jacks are in parallel with an input impedance greater than 2.0 megohm to insure against pickup loading. A true 600 ohm output impedance will drive extremely long cable runs without signal degradation."


Gain: 20dB + or - .3dB
Input Impedance: 2.2 megohms
Output Impedance: 680 ohms
Frequency Response: 10Hz to 100kHz + or - .5dB 20Hz to 20kHz + or - .1dB
Distortion @ +4 dBm: 20 Hz @ less than .006% THD
Distortion @ +4 dBm: 1kHz @ less than .003% THD
Distortion @ +4 dBm: 20kHz @ less than .006% THD
Noise: less than -84dBm unweighted
Maximum Output into 10k ohms or greater: +32dBm @ less than .01 THD
Maximum Output into 600 ohms: +20dBm
Power Requirements: 110 to 120 VAC 50-60 Hz Less than 32VA
S-TI Dimensions: 8" X 6" X 5" Weight: 6Lbs. (14Lbs. with flight case)

S-FC (Flight Case)

White fiberglass flight case with steel corners, foam fitted interior for STI and power cord.

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Located in our Studio City Shop