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EC2,EC4 Manual - Audio Research
https://audioresearch.com/wp-content/uploads/2021/06/EC2EC4_Manual.pdf
The EC-4 is normal ly factory wi red as a three-way crossover at frequencies of 100 and 1000 Hz, however, it may be used as a temporary two-way crossover (bi-amp) by wiring as follows: c. c. 100 Hz (2-way) Use the "bass Il channels (as is) for frequencies below 100 Hz. Use the "mid-range" channels for all frequencies above 100 1-IZ by removing capacitor CIO from the right and left …
Vintage Audio Research EC-4 High Definition Electronic ...
https://www.theaudioboard.com/vintage-audio-research-ec-4-high-definition-electronic-crossover-2/
Audio Research. Vintage Audio Research EC-4 High Definition Electronic Crossover. Buy-Now Price: $999.95 Market: US-Audio-Mart Post navigation. Vintage Pioneer PL-518 Turntable Parts. ( Tone Arm And Mount ) Denon AVR-S960H 7.2Ch 4K AV Receiver **Open Box** View Comments. 4 …
Audio Research EC-4 Electronic Crossover Manual | HiFi Engine
https://www.hifiengine.com/manual_library/audio-research/ec-4.shtml
Audio Research EC-4. Electronic Crossover (1975) add a review. Downloads. instruction/owners manual - OldManDave. Audio Research Electronic Crossovers. EC-2. EC-22. Comments. User login. Login. Username or e-mail: * Password: * Create new account; Request new password; Latest Comments. Re: Looking For...
WALTER BECKER AUDIO RESEARCH EC-4 CROSSOVER
https://www.julienslive.com/m/lot-details/index/catalog/326/lot/128558
An EC-4 crossover circa 1970s by Audio Research, serial number 474060-5. PROVENANCE From the Estate of Walter Becker. Rock 'N' Roll
Audio Research EC-4 3 Way Tube Crossover Lowered Price ...
https://www.audiogon.com/listings/lis99121-audio-research-ec-4-3-way-tube-crossover-lowered-price-equalizers
Audio Research EC-4 for sale. Excellent condition Audio Research EC-4 tube 3 way electronic crossover with new set of 6 selected 12AX7 Ruby tubes. The crossover points are on the sticker at back of the unit. You can select the ...
ARCDB
https://www.arcdb.ws/EC4/EC4.html
The Audio Research Database (ARCDB) provides information about past and present products from ARC (Audio Research Corporation) ... Details. TYPE. Tube 3-way electronic crossover. INTRODUCED. 1974. OPTIONS-MSRP (US NEW RETAIL) EC-4: $295. Later increased to $325. Later decreased to $315. ... Frequencies are adjusted by changing capacitors on the ...
Vintage Audio Research EC-4 High Definition Electronic ...
https://www.ebay.com/itm/304126819115
The unit shows signs of use, and is clean and working properly. You are buying with this in mind. The turntable was exactly as described and beautiful. Vintage Audio Research EC-4 High Definition Electronic Crossover | eBay. For your consideration. Serial #471301-10. Looks, sounds & performs beautifully. The unit shows signs of use, and is clean and working properly.
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