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Audio Research EC-21 Electronic Crossover
http://www.audioheritage.org/vbulletin/showthread.php?15523-Audio-Research-EC-21-Electronic-Crossover
Audio Research EC-21 Electronic Crossover. Does annyone here have any experience or comments on the EC21 valve electronic crossover. If by some miracle someone had the crossover component values chart I would be grateful for a copy or link. (if feasible). I have tried their website on the EC-21, but the info is not that detailed.
Audio Research Crossover Ec-21 - Consumer Electronics
( Brand: AUDIO RESEARCH CORPORATION ), ( model : EC-21 ), ( Country/Region of Manufacture: USA ), ( Bundle Listing: No ) Review (mpn: EC-21 for sale) EC-21 AUDIO RESEARCH ElECtronic Tube Crossover CORPORATION. Don't feel bad if it doesn't sell. Used with a pair of Mignon tympani 1c's, the EC-21 is extremely flexible and can be easily re-configured.
ARCDB
https://www.arcdb.ws/EC21/EC21.html
The Audio Research Database (ARCDB) ... EC-21. Description-Revisions-Details. Tube 2-way electronic crossover. INTRODUCED. 1980. OPTIONS. 216 (6dB capacitor kit): $9. 218 (18dB capacitor kit): $15. MSRP (US NEW RETAIL) $550. Later increased to $650. Later increased to $695. Later increased to $795.
AUDIO RESEARCH EC-21 ELECTRONIC CROSSOVER | Tweaks | …
https://www.audiogon.com/listings/audio-research-ec-21-electronic-crossover
For Sale is a AUDIO RESEARCH Model EC-21 Two Way Vacuum Tube Electronic Crossover. Serial # 20412005 Item is in very good condition and operates as it should. A very interesting and useful audio item. Great for use with single ended amplifiers and high efficient speakers. Uses three ECC83/12AX7 vacuum tubes.
Audio Research EC-21 Electronic Crossover - 250 Hz ...
https://www.ebay.com/itm/334202102652
History:Single Loving Audiophile Owner / Non Smoker. Here is an Audio Research EC-21 electronic crossover. It is being SOLD AS-IS. The unit powers on and the high output works but the low output passes the signal but has a hum in the background.
AUDIO-RESEARCH EC-21 CROSSOVER SCH Service Manual …
https://elektrotanya.com/audio-research_ec-21_crossover_sch.pdf/download.html
EC-21 EC21 CROSSOVER EC 21 AUDIO RESEARCH; If you have any question about repairing write your question to the Message board. For this no need registration. Please take a look at the below related repair forum topics. May be help you to repair.
Vintage Audio Research AR EC-21 tube 12AX7 stereo ...
https://www.ebay.com/itm/234177276064
Price: US $550.00. No Interest if paid in full in 6 mo on $99+. Opens in a new window or tab. *. No Interest if paid in full in 6 months on $99+. Buy It Now. Vintage Audio Research AR EC-21 tube 12AX7 stereo Electronic Crossover. Sign in to check out.
AUDIO RESEARCH EC-21 ELECTRONIC CROSSOVER NICE …
https://www.audiogon.com/listings/1453789
Equalizers. AUDIO RESEARCH EC-21 ELECTRONIC CROSSOVER used This is a very nice Audio Research Electronic crossover.....It has some scratches on the front panel, when last used it was working properly, but hasn't been used in several years....I am selling i... 580.00.
Audio Research 2 Way Tube Crossover – Model: EC-2
https://www.vintageaudioexchange.com/product/audio-research-2-way-tube-crossover-model-ec-2
Audio Research 2 Way Tube Crossover – Model: EC-2. Terms of Sale: This item is available for local pickup only. Pickup must be made at our retail store in Jamestown, NC. If shipping is important to you, please contact us directly before making this purchase.
Audio Research – High-end audio equipment
https://audioresearch.com/
Experience Audio Research – experience High Definition®. Power Amplifiers. At the heart of our Power Amplifiers is decades of proven Audio Research vacuum tube technology, a legacy unrivaled by any other manufacturer of tube electronics. Developed through hundreds of hours of critical listening, the carefully selected components comprising ...
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