https://acousticresearchspeakers.net Thu, 16 Apr 2026 23:53:33 +0000 en-CA hourly 1 https://wordpress.org/?v=4.1.1 https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-7/ https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-7/#comments Mon, 02 Mar 2026 19:47:41 +0000 https://acousticresearchspeakers.net/2026/03/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-7/ read more »]]>


Get cleaner more dynamic midrange and highs with new level of resolution from your AR3a with this upgrade. Upgrade consists of the following. Install all new parts including Hi-Fi Nedlab film capacitors. Low distortion “perfect lay” inductors Install new OFC pure copper wire. Can be made for either level control use or locked into the (0) flat position with resistors and bypass the Level controls. Fully tested on lab analyzer comes with frequency response test sheets. Matched pairs to +/-0.5db max deviation. 20+ years of experience in hi fidelity crossover design. They started irritating me awhile back. So I got these new crossovers. They sound like a new speaker. Results are in a word SUPERB. What an amazing difference the crossovers make. The mids and highs actually sound transparent. Excellent, item as described great packing, improved sound detail, impressed! Take a look at my other interesting audio related auctions.

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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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Get cleaner more dynamic midrange and highs with new level of resolution from your AR3a with this upgrade. Upgrade consists of the following. Install all new parts including Hi-Fi Nedlab film capacitors. Low distortion “perfect lay” inductors Install new OFC pure copper wire. Can be made for either level control use or locked into the (0) flat position with resistors and bypass the Level controls. Fully tested on lab analyzer comes with frequency response test sheets. Matched pairs to +/-0.5db max deviation. 20+ years of experience in hi fidelity crossover design. They started irritating me awhile back. So I got these new crossovers. They sound like a new speaker. Results are in a word SUPERB. What an amazing difference the crossovers make. The mids and highs actually sound transparent. Excellent, item as described great packing, improved sound detail, impressed! Take a look at my other interesting audio related auctions.

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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!

]]> https://acousticresearchspeakers.net/2025/12/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-9/feed/ 0 https://acousticresearchspeakers.net/2025/12/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-5/ https://acousticresearchspeakers.net/2025/12/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-5/#comments Fri, 05 Dec 2025 16:19:40 +0000 https://acousticresearchspeakers.net/2025/12/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-5/ read more »]]>


Get cleaner more dynamic midrange and highs with new level of resolution from your AR3a with this upgrade. Upgrade consists of the following. Install all new parts including Hi-Fi Nedlab film capacitors. Low distortion “perfect lay” inductors Install new OFC pure copper wire. Can be made for either level control use or locked into the (0) flat position with resistors and bypass the Level controls. Fully tested on lab analyzer comes with frequency response test sheets. Matched pairs to +/-0.5db max deviation. 20+ years of experience in hi fidelity crossover design. They started irritating me awhile back. So I got these new crossovers. They sound like a new speaker. Results are in a word SUPERB. What an amazing difference the crossovers make. The mids and highs actually sound transparent. Excellent, item as described great packing, improved sound detail, impressed! Take a look at my other interesting audio related auctions.

]]> https://acousticresearchspeakers.net/2025/12/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-5/feed/ 0 https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-8/ https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-8/#comments Wed, 27 Aug 2025 07:20:51 +0000 https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-8/ 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!

]]> https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-8/feed/ 0 https://acousticresearchspeakers.net/2025/07/vintage-hi-fi-audio-speakers-ar18-capacitor-upgrade-and-test/ https://acousticresearchspeakers.net/2025/07/vintage-hi-fi-audio-speakers-ar18-capacitor-upgrade-and-test/#comments Mon, 07 Jul 2025 16:39:46 +0000 https://acousticresearchspeakers.net/2025/07/vintage-hi-fi-audio-speakers-ar18-capacitor-upgrade-and-test/ ]]> https://acousticresearchspeakers.net/2025/07/vintage-hi-fi-audio-speakers-ar18-capacitor-upgrade-and-test/feed/ 0 https://acousticresearchspeakers.net/2025/05/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-4/ https://acousticresearchspeakers.net/2025/05/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-4/#comments Tue, 20 May 2025 10:40:39 +0000 https://acousticresearchspeakers.net/2025/05/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-4/ read more »]]>


Get cleaner more dynamic midrange and highs with new level of resolution from your AR3a with this upgrade. Upgrade consists of the following. Install all new parts including Hi-Fi Nedlab film capacitors. Low distortion “perfect lay” inductors Install new OFC pure copper wire. Can be made for either level control use or locked into the (0) flat position with resistors and bypass the Level controls. Fully tested on lab analyzer comes with frequency response test sheets. Matched pairs to +/-0.5db max deviation. Price is for a pair of crossovers. 20+ years of experience in hi fidelity crossover design. They started irritating me awhile back. So I got these new crossovers. They sound like a new speaker. Results are in a word SUPERB. What an amazing difference the crossovers make. The mids and highs actually sound transparent. Excellent, item as described great packing, improved sound detail, impressed! Take a look at my other interesting audio related auctions.

]]> https://acousticresearchspeakers.net/2025/05/acoustic-research-ar-ar3a-crossover-upgrade-restore-single-4/feed/ 0 https://acousticresearchspeakers.net/2025/05/best-sound-bars-you-can-buy-right-now-ultimate-audio-upgrade/ https://acousticresearchspeakers.net/2025/05/best-sound-bars-you-can-buy-right-now-ultimate-audio-upgrade/#comments Wed, 14 May 2025 10:27:33 +0000 https://acousticresearchspeakers.net/2025/05/best-sound-bars-you-can-buy-right-now-ultimate-audio-upgrade/ ]]> https://acousticresearchspeakers.net/2025/05/best-sound-bars-you-can-buy-right-now-ultimate-audio-upgrade/feed/ 0 https://acousticresearchspeakers.net/2025/04/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-7/ https://acousticresearchspeakers.net/2025/04/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-7/#comments Sun, 13 Apr 2025 09:21:37 +0000 https://acousticresearchspeakers.net/2025/04/acoustic-research-ar-3a-crossover-upgrade-service-new-crossovers-each-7/ 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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