Ampeg SVT-4 Pro Bass Amp Trombone With the proprietary BX3 input

With the proprietary BX3 input transformer and BX2 output transformer

Enter the Royer R121 Ribbon Microphone

Offering low noise (-129 EIN) and 65 dB of gain

Forty years later

USB interface for MIDI In / Out

Ampeg SVT-4 Pro Bass Amp Trombone With the proprietary BX3 inputIn the world of high performance bass amps, Ampegs SVT amplifiers are in a class by themselves. In true Ampeg tradition, the SVT 4 PRO offers you more power, performance and flexibility than any other bass amplifier in its class. SVT 4PRO offers an expansive palette of tonal options. The Frequency control allows you to select the center frequency for the Midrange control, giving you five distinct voicing options for the Midrange. And if thats not