https://acousticresearchspeakers.net Wed, 22 Apr 2026 12:05:39 +0000 en-CA hourly 1 https://wordpress.org/?v=4.1.1 https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-10/ https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-10/#comments Mon, 02 Mar 2026 07:46:41 +0000 https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-10/ read more »]]>



You will get a new crossover built to original schematic with some small improvements the circuit and much better parts quality. Crossovers only, not speakers. Get more powerful better extended low frequency, more dynamic cleaner midrange, and smoother higher resolution mids and highs. The speaker will come to life with new levels of detail and dimension. Capacitors mid / tweeter premium Nedlab 2% film capacitors. Capacitors on woofer Hybrid 3% electrolytic+ 2% PP film type. Mid / tweeter section film type resistors, non inductive type. Mid / tweeter coils/Inductors are perfect lay low distortion Air-core type. Woofer coils -15awg thick awg low distortion laminated steel type. All wires 99.99% pure oxygen free copper. Fully tested and matched to better than +/-1db. 20+ years of experience in hi fidelity crossover design. This service is also available for other AR models, just contact me. Dear NE, thanks for the fantastic job you did on rebuilding my KLH 5 crossovers. They look brand new. I received my crossovers in good condition and installed them today. I’m very satisfied. My fortes sound much better now. I finished the install today. Long wait but OMG what a difference! You have my 5 stars. Installed the crossovers over the weekend. You restored the upper range frequency response. The speakers now sound incredible! These crossovers are a significant improvement! Better stereo imaging, clearer distinctions between instruments and vocals and a more responsive bass. Got them yesterday and we spent today getting them installed.. I cried when we turned back on – the sound is so much better. Thank you You do wonderful work!

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These came from ar58bzs but can be used with any ar58 variant.

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You will get a new crossover built to original schematic with some small improvements the circuit and much better parts quality. Crossovers only, not speakers. Get more powerful better extended low frequency, more dynamic cleaner midrange, and smoother higher resolution mids and highs. The speaker will come to life with new levels of detail and dimension. Capacitors mid / tweeter premium Nedlab 2% film capacitors. Capacitors on woofer Hybrid 3% electrolytic+ 2% PP film type. Mid / tweeter section film type resistors, non inductive type. Mid / tweeter coils/Inductors are perfect lay low distortion Air-core type. Woofer coils -15awg thick awg low distortion laminated steel type. All wires 99.99% pure oxygen free copper. Fully tested and matched to better than +/-1db. 20+ years of experience in hi fidelity crossover design. This service is also available for other AR models, just contact me. Dear NE, thanks for the fantastic job you did on rebuilding my KLH 5 crossovers. They look brand new. I received my crossovers in good condition and installed them today. I’m very satisfied. My fortes sound much better now. I finished the install today. Long wait but OMG what a difference! You have my 5 stars. Installed the crossovers over the weekend. You restored the upper range frequency response. The speakers now sound incredible! These crossovers are a significant improvement! Better stereo imaging, clearer distinctions between instruments and vocals and a more responsive bass. Got them yesterday and we spent today getting them installed.. I cried when we turned back on – the sound is so much better. Thank you You do wonderful work!

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Vintage Acoustic Research AR 2x Speakers. Cabinets have Original AR finish and grilles / tweeter level pots, woofers, and crossovers were rebuilt. Drivers are sealed with original gaskets and flexible sealant were needed. Top Quality Restoration Work. I did the best I could to get them back to their original looks, performance, and sound = SOUND GREAT! The work was done FALL 2025 and the speakers have 1-2 hours of use after the rebuild. They will sound better with use (after initial break in period) as the new woofer cone surrounds loosen up.

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Condition summary: one tested and working, other untested due to broken terminals, boxes not salvageable, crossovers/wiring included. Use case: restoration projects, parts harvesting, experimentation. Condition Disclosure: These amplifiers were pulled from AR P428PS speakers. One tested and working; others untested due to broken terminals. Boxes not salvageable, but crossovers and wiring included. Crossovers and wiring bagged separately, double-boxed for safe transit.

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You will get a new crossover built to original schematic with some small improvements the circuit and much better parts quality. Crossovers only, not speakers. Get more powerful better extended low frequency, more dynamic cleaner midrange, and smoother higher resolution mids and highs. The speaker will come to life with new levels of detail and dimension. Capacitors mid / tweeter premium Nedlab 2% film capacitors. Capacitors on woofer Hybrid 3% electrolytic+ 2% PP film type. Mid / tweeter section film type resistors, non inductive type. Mid / tweeter coils/Inductors are perfect lay low distortion Air-core type. Woofer coils -15awg thick awg low distortion laminated steel type. All wires 99.99% pure oxygen free copper. Fully tested and matched to better than +/-1db. 20+ years of experience in hi fidelity crossover design. This service is also available for other AR models, just contact me. Dear NE, thanks for the fantastic job you did on rebuilding my KLH 5 crossovers. They look brand new. I received my crossovers in good condition and installed them today. I’m very satisfied. My fortes sound much better now. I finished the install today. Long wait but OMG what a difference! You have my 5 stars. Installed the crossovers over the weekend. You restored the upper range frequency response. The speakers now sound incredible! These crossovers are a significant improvement! Better stereo imaging, clearer distinctions between instruments and vocals and a more responsive bass. Got them yesterday and we spent today getting them installed.. I cried when we turned back on – the sound is so much better. Thank you You do wonderful work!

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Crossovers were glued inside box and the wires to tweeter were heavily glued explaining the extra lengths with the Spade connectors.

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Pull out from ar3 working speaker.

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The Acoustic Research AR-3A Empty Cabinets Crossovers Grills is a vintage audio accessory designed to enhance the sound quality of vintage speakers. Specifically made for the Acoustic Research AR3 model, these empty cabinets crossovers grills are a crucial component for achieving optimal audio performance.

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You will get a new crossover built to original schematic with some small improvements the circuit and much better parts quality. Crossovers only, not speakers. Get more powerful better extended low frequency, more dynamic cleaner midrange, and smoother higher resolution mids and highs. The speaker will come to life with new levels of detail and dimension. Capacitors mid / tweeter premium Nedlab 2% film capacitors. Capacitors on woofer Hybrid 3% electrolytic+ 2% PP film type. Mid / tweeter section film type resistors, non inductive type. Mid / tweeter coils/Inductors are perfect lay low distortion Air-core type. Woofer coils -15awg thick awg low distortion laminated steel type. All wires 99.99% pure oxygen free copper. Fully tested and matched to better than +/-1db. 20+ years of experience in hi fidelity crossover design. This service is also available for other AR models, just contact me. Dear NE, thanks for the fantastic job you did on rebuilding my KLH 5 crossovers. They look brand new. I received my crossovers in good condition and installed them today. I’m very satisfied. My fortes sound much better now. I finished the install today. Long wait but OMG what a difference! You have my 5 stars. Installed the crossovers over the weekend. You restored the upper range frequency response. The speakers now sound incredible! These crossovers are a significant improvement! Better stereo imaging, clearer distinctions between instruments and vocals and a more responsive bass. Got them yesterday and we spent today getting them installed.. I cried when we turned back on – the sound is so much better. Thank you You do wonderful work!

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