Sep 152015
 

The Siegmund Amplifiers Doppler Stereo Amp is hand-wired and uses the company’s Asymmetrical Frequency Soundstage design, which it says divides high and low frequencies into the amp’s two rotating speakers, one 10″, the other 15″. The v-front cabinet helps it produce a pitch-shift vibrato with (more…)
Siegmund Offers Doppler Stereo Amp
Source: Vintage Guitar – Magazine