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Question posted by Chrisdenosta794 on July 11th, 2016

Bose 901 Series Iv Equalizer

having a hard time setting up equalizer with low and high frequency. Can you help

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Answer #1: Posted by TommyKervz on July 19th, 2016 9:10 AM

TommyKervz

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January 10th, 2013

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Please refer on the link below for a solution.

https://retrovoltage.com/2013/10/21/mailbag-is-the-bose-901-equalizer-really-necessary/

Hope that is helpful.
Kervz at www.satechhelp.co.za

Related Bose 901 Series IV Manual Pages

Owner's guide - Page 2

Using the Prea.rnp-OutiMain-Ir Czrou]l 4. Living with your BOSE 901 Speakers 14 A. Covered by oaten: rights .ssued attS pert&ng. Connecting the Equalizer 1. Using Separate Components: Conroe:Vic Benwcer the Franc and the Arnolifiei? 3. Using 1-cur-Chanre IV. Voltage Conversion C. Warranty 19 r..; '978 DOSE Ccrpo•aticn. Table of Difficulty D. Introduction 3 II. ...

Owner's guide - Page 3

... be rewarded with its high proportion of reflected sound, nine full-range drivers, and a newly-designed electronic active equalizer, is the culmination of many years of research dedicated to the art of the speakers has visible damage when unpacked, do not place the damaged speaker(s) in this manual are important. The BOSE 901 Series IV, with the unique...

Owner's guide - Page 4

...speakers and would like more information, SECTION V (LIVING WITH YOUR BOSE 901 SPEAKERS) provides several additional suggestions for best sound, 2) connecting the speaker to your amplifying equipment, and 3) connecting the equalizer...performance. The angled grille panels found on the 901 Series IV equalizer will help you place the speakers within the ranges suggested here, the unique adjustments...

Owner's guide - Page 6

... proper phasing of the insulation so that both 901 speaker systems be purchased without the equalizer. two-conductor, stranded copper wire for both speakers work together (in this manner. " to the terminal marked "com," "negative," or "minus" on the left channel amplifier output. (When connecting the 901 Series IV loudspeakers to the terminal marked "pos," "positive," or...

Owner's guide - Page 7

... RECEIVER LEFT RIGHT CHANNEL OUTPUT CHANNEL OUTPUT POS COM POS COM + Figure3 BOSE Corporation recommends use of a 3ampere, fast-acting Buss AGC Series or Littelfuse AG Series. Amplifiers rated over 100 watts rms per channel, no fusing is subject to your speakers as outlined in an easily accessible location. Ask for part number 108938...

Owner's guide - Page 8

... labeled TAPE OUT or REC OUT.) f. Turn off all power to determine if your control amplifier; g. CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES IV SPEAKER SYSTEM. 1. this section can be labeled PLAYBACK or TAPE IN.) d. Using one of the cables supplied with the...

Owner's guide - Page 9

... slide the LOW and HIGH FREQUENCY SOURCE AND ROOM COMPENSATION controls from one extreme to the MONITOR or ON position. m. If the sound does not return and the equalizer pilot light is not yet switched into the switched ac outlet of the test.) I AND II SPEAKER SYSTEMS. HOWEVER, THE 901 SERIES IV EQUALIZER IS COMPATIBLE WITH THE 901 SERIES III SPEAKER SYSTEM...

Owner's guide - Page 10

... speakers or headphones. (See SECTION IV.) Due to the circuitry characteristics of some receivers, the equalizer may increase slightly due to these jacks. EQUALIZER ...IV.) If you do connect the equalizer in this may prove inconvenient if you are using conventional loudspeakers and headphones because the equalizer is suggested that the gain controls of connecting the BOSE Active Equalizer...

Owner's guide - Page 11

... 901 Series IV system, optimum performance is obtained when all four speaker systems are not used, we suggest using conventional speakers with deep bass to determine the proper phase of your speaker phasing. Connect one equalizer for the front channels and one pair of speaker connections. This important procedure involves listening to musical passages with the BOSE 901's. These...

Owner's guide - Page 12

... tape recorder. 4. -7J 5 IV. NOTE: IF YOUR CONTROL AMPLIFIER HAS TWO TAPE MONITOR CIRCUITS, BE CERTAIN TO CONNECT YOUR TAPE RECORDER TO THE BOSE ACTIVE EQUALIZER, NOT TO THE UNUSED TAPE MONITOR... Since the Active Equalizer is connected to the RIGHT or "B" channel INPUT (or LINE IN) jack of a tape recorder. Connect the RIGHT channel TAPE OUT jack on the 901 Active Equalizer in the MONITOR ...

Owner's guide - Page 13

...treble and bass being emphasized. To play your 901 equalizer in the monitor position (in) using the equalizer (for conventional speakers or headphones) and your tape recorder. 2. Your...tAny speaker system other than the BOSE III or IV system. To play your tape recorder with your control amplifier on your high-fidelity system and will sound unnatua with conventional speakers and ...

Owner's guide - Page 14

...midrange and high-frequency range without any loudspeaker. A contribution in this problem with your listening room. plications, providing the fusing recommendations in achieving this control allows the speaker system to match the acoustics of your BOSE 901 Loudspeakers The effect of room characteristics, musical sources, and speaker placement. ties make the 901 Series IV speaker system...

Owner's guide - Page 15

... people choose the attractive pedestals available wit the 901 Series IV System. B. ADJUSTING THE LOW AND HIGH FREQUENCY SOURCE AND ROOM COMPENSATION CONTROLS 1. Next, replay the same passage again and move the HIGH FREQUENCY Control over the extremes of children. 15 Make certain the shelving is used to suspend the speaker syster from the ceiling (see Figure 1). "Ii :011...

Owner's guide - Page 16

...speakers upside down . those with uncovered floors or scatter rugs, small amounts of furniture, hard walls) can be directed downward by the addition of rugs and heavy drapery, which allow low frequencies... RUBBER FEET The speaker is safely supported from the ceiling. A lack of bass response frequently may be attached to hang your 901 IV Equalizer are especially helpful in compensating for...

Owner's guide - Page 17

... receiver or amplifier when equalizer is connected in non-commercial applications, providing the fusing recommendations are followed. 5. SOURCE AND ROOM COMPENSATION LOW FREQUENCY CONTROL: Continuously adjustable slider, mt 8 dB adjustment over band from the wall behind the speaker; The system Is packed in series. Impedance: 8 ohms 3. HIGH FREQUENCY CONTROL: Continuously adjustable...

Owner's guide - Page 18

... polish off any excess oil. Technical Information B. 110.220 VAC VOLTAGE CONVERSION The BOSE Series IV Equalizer is designed to operate on one speaker sounds defective, DO NOT switch the speaker cables, as this manual. If the trouble still persists, contact your 901s, we suggest occasionally rubbing the cabinet with an oilrubbed walnut veneer finish. CARE AND...

Owner's guide - Page 19

...by carefully following this unit fail within the warranty period, you to the nearest authorized BOSE service agency. Any damage in its original shipping carton. If the defects cannot be... together with the original sales receipt or other rights which vary from the BOSE Customer Service Department, 100 The Mountain Road, Framingham, Massachusetts 01701. 2. Obtain a "Return ...