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Mono & Stereo © 2021: Audio Research EC-3 tube crossover
https://www.monoandstereo.com/2020/05/audio-research-ec-3-tube-crossover.html
Audio Research EC-3 tube crossover Audio Research Corporation Vintage EC -3 in for service. This electronic 3-way tube crossover (12 x 12AX7) was introduced in 1974. It is great to see how Audio Research still supports such vintage products!
ARCDB
https://www.arcdb.ws/model/EC3
The Audio Research Database (ARCDB) ... EC-3: $595. Later increased to $650. EC-3A: $795. Reviews. Number 3 (EC-3: Further Thoughts) ... Manuals. EC-3 schematic. Specifications. Frequency response-Distortion-Noise & hum-Gain-Crossover points-Crossover slopes-Input impedance-Output impedance-Maximum inputs-Rated outputs-Power supplies-Tube ...
Audio Research EC-3 modification - diyAudio
https://www.diyaudio.com/forums/tubes-valves/218153-audio-research-ec-3-modification.html
Hello all, I have this crossover for many years now and used it in the past for my Magnepan speakers as a mid-/high crossover. Since I don`t own these Audio Research EC-3 modification - diyAudio
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 3 Way Crossover Model EC-4 For Sale ...
https://www.canuckaudiomart.com/details/649660563-audio-research-3-way-crossover-model-ec-4/
Classifieds: FOR SALE - Audio Research 3 Way Crossover Model EC-4 asking for $400.00
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 ...
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