Audio Research EC-4
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Product
Site
Price
Listed
Aural HiFi
Audio Research EC-4A // Vintage / 3-way Electronic Tube Crossover (475060-1)
Aural HiFi
$599
Aug 23, 2025
- Sep 3, 2025
Aural HiFi
$599
Aug 23, 2025 - Sep 3, 2025
Reverb
Audio Research EC-4 3 Way Tube Crossover 1970s - Metal
$900
Feb 21, 2025
- Mar 2, 2025
$900
Feb 21, 2025 - Mar 2, 2025
Canuck Audio Mart
Audio Research EC-4 three way tube electronic crossover
Canuck Audio Mart
CA$450
Apr 29, 2024
- Oct 24, 2024
Canuck Audio Mart
CA$450
Apr 29, 2024 - Oct 24, 2024
Audiogon
Audio Research EC-4
Audiogon
$888
Dec 16, 2023
- Mar 15, 2024
Audiogon
$888
Dec 16, 2023 - Mar 15, 2024
Audio Graffiti
AUDIO RESEARCH > EC-4
Audio Graffiti
€700
Feb 11, 2023
- Feb 17, 2023
Audio Graffiti
€700
Feb 11, 2023 - Feb 17, 2023
Subito
Audio research ec-4
Subito
-
Jan 30, 2023
- Jan 30, 2023
Subito
-
Jan 30, 2023 - Jan 30, 2023
Canuck Audio Mart
Audio Research EC-4 Tube Electronic Crossover
Canuck Audio Mart
CA$1,000
Oct 8, 2022
- Dec 15, 2022
Canuck Audio Mart
CA$1,000
Oct 8, 2022 - Dec 15, 2022
US Audio Mart
Vintage Audio Research EC-4 High Definition Electronic Crossover
US Audio Mart
$799
20%
Feb 7, 2022
- Jun 29, 2022
US Audio Mart
$799
20%
Feb 7, 2022 - Jun 29, 2022
Bonanza
Audio Research EC-2A EC-4A Crossover Dealer Spec Sheet *Original*
Bonanza
$12
Jul 9, 2021
- Nov 14, 2021
Bonanza
$12
Jul 9, 2021 - Nov 14, 2021
Subito
AUDIO RESEARCH EC-4 crossover elettronico
Subito
€650
13%
Jan 9, 2021
- Jan 23, 2021
Subito
€650
13%
Jan 9, 2021 - Jan 23, 2021
Canuck Audio Mart
Audio Research 3 Way Crossover Model EC-4
Canuck Audio Mart
CA$400
Oct 3, 2020
- Oct 3, 2020
Canuck Audio Mart
CA$400
Oct 3, 2020 - Oct 3, 2020
Kijiji CA
Audio Research Crossover Model EC-4
Kijiji CA
CA$400
Oct 2, 2020
- Oct 2, 2020
Kijiji CA
CA$400
Oct 2, 2020 - Oct 2, 2020
US Audio Mart
Audio research EC-4 tube crossover
US Audio Mart
$650
Aug 9, 2020
- Sep 29, 2020
US Audio Mart
$650
Aug 9, 2020 - Sep 29, 2020
Yahoo Auctions
audio research audio li search HIGH DEFINITION 3WAY ELECTRONIC CROSSOVER MODEL EC-4 operation goods tube lamp type *1398512g
Yahoo Auctions
Auction bid
¥1,430 Aug 1, 2020
- Aug 1, 2020
Yahoo Auctions
Auction bid¥1,430 Aug 1, 2020
- Aug 1, 2020
US Audio Mart
Audio research ec-4a crossover
US Audio Mart
$600
Jul 14, 2019
- Nov 2, 2019
US Audio Mart
$600
Jul 14, 2019 - Nov 2, 2019
Canuck Audio Mart
Audio Research EC-4 two or three-Way tubed crossover
Canuck Audio Mart
CA$750
12%
Apr 2, 2019
- Sep 2, 2019
Canuck Audio Mart
CA$750
12%
Apr 2, 2019 - Sep 2, 2019
Audiogon
Audio Research EC-4 3 Way Tube Crossover Lowered Price
Audiogon
$550
Dec 7, 2018
- Dec 17, 2018
Audiogon
$550
Dec 7, 2018 - Dec 17, 2018
US Audio Mart
Audio Research EC-4
US Audio Mart
$675
Oct 19, 2018
- Dec 6, 2018
US Audio Mart
$675
Oct 19, 2018 - Dec 6, 2018
Tradera
Audio research ec-4a trevägs aktivt delningsfilter
Tradera
SEK 3,000
Sep 13, 2018
- Sep 16, 2018
Tradera
SEK 3,000
Sep 13, 2018 - Sep 16, 2018
Rehifi
Audio Research EC-4 Aktivt rörbestyckat delningsfilter
Rehifi
SEK 4,900
Mar 14, 2018
- Apr 5, 2018
Rehifi
SEK 4,900
Mar 14, 2018 - Apr 5, 2018
Audiogon
Audio Research EC-4 3 Way Tube Crossover Lowered Price
Audiogon
$550
15%
Dec 12, 2017
- Dec 28, 2017
Audiogon
$550
15%
Dec 12, 2017 - Dec 28, 2017
US Audio Mart
Audio Research EC-4 3 way Tube Xover
US Audio Mart
$550
15%
Dec 11, 2017
- Dec 16, 2018
US Audio Mart
$550
15%
Dec 11, 2017 - Dec 16, 2018
Rehifi
Audio Research EC-4 Aktivt rörbestyckat delningsfilter
Rehifi
SEK 4,900
Sep 15, 2017
- Mar 8, 2018
Rehifi
SEK 4,900
Sep 15, 2017 - Mar 8, 2018
US Audio Mart
Audio Research EC-4
US Audio Mart
$950
Dec 18, 2016
- Jun 1, 2017
US Audio Mart
$950
Dec 18, 2016 - Jun 1, 2017
US Audio Mart
Audio Research EC-4
US Audio Mart
$1,000
Nov 29, 2016
- May 28, 2017
US Audio Mart
$1,000
Nov 29, 2016 - May 28, 2017
Audiogon
Audio Research EC-4 ARC Electronic Crossover
Audiogon
$1,000
Nov 14, 2016
- Dec 13, 2016
Audiogon
$1,000
Nov 14, 2016 - Dec 13, 2016
US Audio Mart
Audio Research EC4 Electronic Crossover Tube BiAmp or TriAmp
US Audio Mart
$749
Jan 1, 2015
- Mar 13, 2015
US Audio Mart
$749
Jan 1, 2015 - Mar 13, 2015
Canuck Audio Mart
Audio Research vacuum tube crossover ec-4
Canuck Audio Mart
CA$1,450
Jul 19, 2014
- Oct 18, 2014
Canuck Audio Mart
CA$1,450
Jul 19, 2014 - Oct 18, 2014
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