You could look up the service manual (or some of the curves I've published previously) for a Bose 901 Series I/II equalizer, but you'd need to shift the curves somewhat to make it work. I've never seen an equalizer which offered more than +12 dB of gain - which represents only a 15.8x increase in level at that frequency. A real shame this clip does not really capture the gut-wrenching dynamics and transients! For that you have to listen to them in person. All I can say is Wow! Now that I've added the Carver M-200t Bose 901 Series VI Direct/Reflecting Speaker System, Black, Pair. 4.2 out of 5 stars 9. More Buying Choices $1,989.99 (1 used offer) OWNER'S MANUAL for 901 SERIES II DIRECT/REFLECTING BOSE SPEAKER SYSTEM. by Framingham, Massachusetts. Bose Corporation. Series 1 and 2 don't have the surround rot problem 3 through 6 have. You do need the correct (Series 2) Eq for them to work and sound their best. Wish we were closer.. I have a beautiful set of series 2 901's in the dark wood and off white grills with sands, Eq and all the original paperwork included that I'd like to sell cheap to a good home.. Related Manuals for Bose 901 Series 4 Manual Bose VCS30 Series II centresurround speaker system Sold from August 2001 to present User Manual. 18 pages | Bose Speaker System Bose VCS30 centresurround speaker package Sold from June 1997 to 2001 User Manual At ServiceManuals.net, we carry Bose service manuals for most Bose models including 614810 SUPPLEMENT, 62 6.2 SPEAKER, 701SERIESII BULLETIN - CLICK FOR DETAILS, 802, 802 SERIES III, 802-11, 802C, 802II, 802W-11, 802WII, 901 POWERED SPEAKER SYSTEM, 901 SERIES I AND II SERVICE MANUAL, 901 SERIES SPEAKER SERIES VI, 901P BULLETIN - CLICK FOR DETAILS, 901SERIESVI BULLETIN - CLICK FOR DETAILS. Audio manuals and audio service pdf instructions. Find the user manual you need for your audio device and more at ManualsOnline. Bose Speaker System 901 Series II User Guide | ManualsOnline.com 901 SERIES SPEAKER SYST