Ships same business day - FedEx or UPS The EQ901 Platinum is Deer Creek Audio's premier equalizer / preamplifier for the legendary Bose 901® Series speakers. The EQ901 Platinum features four specifically designed equalization curve sets unique to each series: I/II, III/IV or V/VI (select your series when ordering). The EQ901 Platinum is also a high fidelity digital preamplifier intended to drive high quality power amplifiers, integrated amplifiers or receivers. Analog, USB, SPDIF, TOSLINK and high definition Bluetooth streaming inputs are included. When used in the digital input mode the music stream is maintained in the digital domain all the way through the 901 equalization process. This is the purest and highest fidelity way to drive your 901s. >> Video Spotlight > User Links > Video Spotlight
