Acoustic Research Speakers

Acoustic Research Speakers » p428ps https://acousticresearchspeakers.net Thu, 25 Jun 2026 18:14:01 +0000 en-CA hourly 1 https://wordpress.org/?v=4.1.1 AR P428PS Amplifier Lot Tested Unit + Crossovers & Wiring (Project/Parts) https://acousticresearchspeakers.net/2025/11/ar-p428ps-amplifier-lot-tested-unit-crossovers-wiring-projectparts/ https://acousticresearchspeakers.net/2025/11/ar-p428ps-amplifier-lot-tested-unit-crossovers-wiring-projectparts/#comments Thu, 20 Nov 2025 03:47:51 +0000 https://acousticresearchspeakers.net/2025/11/ar-p428ps-amplifier-lot-tested-unit-crossovers-wiring-projectparts/ read more »]]>
AR P428PS Amplifier Lot Tested Unit + Crossovers & Wiring (Project/Parts)

AR P428PS Amplifier Lot Tested Unit + Crossovers & Wiring (Project/Parts)

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.
AR P428PS Amplifier Lot Tested Unit + Crossovers & Wiring (Project/Parts)

]]> https://acousticresearchspeakers.net/2025/11/ar-p428ps-amplifier-lot-tested-unit-crossovers-wiring-projectparts/feed/ 0 Acoustic Research AR P428PS Speaker Pair Good Used Condition https://acousticresearchspeakers.net/2025/11/acoustic-research-ar-p428ps-speaker-pair-good-used-condition/ https://acousticresearchspeakers.net/2025/11/acoustic-research-ar-p428ps-speaker-pair-good-used-condition/#comments Wed, 05 Nov 2025 03:06:41 +0000 https://acousticresearchspeakers.net/2025/11/acoustic-research-ar-p428ps-speaker-pair-good-used-condition/ read more »]]>

Acoustic Research AR P428PS Speaker Pair Good Used Condition

Acoustic Research AR P428PS Speaker Pair – Good Used Condition. Very Good pre-owned condition. Front grill cloths are original and are in very good condition. Each speaker has a built-in 8 inch sub-woofer driven by a 100 watt discrete monaural internal power amplifier. Still sound great after all of these years. Hate to part with them but we are downsizing.
Acoustic Research AR P428PS Speaker Pair Good Used Condition

]]> https://acousticresearchspeakers.net/2025/11/acoustic-research-ar-p428ps-speaker-pair-good-used-condition/feed/ 0 Vintage Acoustic Research AR P428PS Tower Speakers Fully Functional Pair https://acousticresearchspeakers.net/2025/10/vintage-acoustic-research-ar-p428ps-tower-speakers-fully-functional-pair/ https://acousticresearchspeakers.net/2025/10/vintage-acoustic-research-ar-p428ps-tower-speakers-fully-functional-pair/#comments Mon, 27 Oct 2025 01:47:03 +0000 https://acousticresearchspeakers.net/2025/10/vintage-acoustic-research-ar-p428ps-tower-speakers-fully-functional-pair/ read more »]]>
Vintage Acoustic Research AR P428PS Tower Speakers Fully Functional Pair

Vintage Acoustic Research AR P428PS Tower Speakers Fully Functional Pair

These 4-way units feature front-facing tweeter, midrange, and woofer drivers, plus a rear-firing powered subwoofer. Ideal for vintage audio collectors or restoration enthusiasts seeking rich, balanced sound with deep bass. All drivers tested and verified. Subwoofer amps functional, no hum or distortion. Cabinets structurally sound with minor cosmetic wear. Grills intact, no major snags or warping. Non-invasive cleaning and inspection. No driver replacements or crossover mods. Ready for plug-and-play use or legacy handoff. ? Dimensions (each speaker). Height: 42? Width: 11? Depth: 15? Weight: 50 lbs.
Vintage Acoustic Research AR P428PS Tower Speakers Fully Functional Pair

]]> https://acousticresearchspeakers.net/2025/10/vintage-acoustic-research-ar-p428ps-tower-speakers-fully-functional-pair/feed/ 0 Acoustic Research Ar P428ps Bass Woofer Speaker D01-0007 Lf200rs5101s100 4 Ohm https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-bass-woofer-speaker-d01-0007-lf200rs5101s100-4-ohm/ https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-bass-woofer-speaker-d01-0007-lf200rs5101s100-4-ohm/#comments Sat, 30 Aug 2025 19:30:00 +0000 https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-bass-woofer-speaker-d01-0007-lf200rs5101s100-4-ohm/ read more »]]>
Acoustic Research Ar P428ps Bass Woofer Speaker D01-0007 Lf200rs5101s100 4 Ohm

Acoustic Research Ar P428ps Bass Woofer Speaker D01-0007 Lf200rs5101s100 4 Ohm

For sale is an excellent working Acoustic Research P428PS bass woofer in great condition with some minor wear, please see pics. Model number on magnet is D01-0007 LF200RS5101S100, 75W, 4 ohm. This is the bass woofer located on the front of the cabinet, not the side. You will receive everything you see in the pictures, if it is not pictured then it’s not included. All items have a hidden invisible security mark. Please view pictures and ask any questions you might have. Have a nice day!
Acoustic Research Ar P428ps Bass Woofer Speaker D01-0007 Lf200rs5101s100 4 Ohm

]]> https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-bass-woofer-speaker-d01-0007-lf200rs5101s100-4-ohm/feed/ 0 Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!) https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only-2/ https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only-2/#comments Thu, 28 Aug 2025 07:22:50 +0000 https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only-2/ read more »]]>
Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!)

Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!)

For sale is an excellent working Acoustic Research P428PS amplifier in great condition however it has a broken “speaker level in” terminal but a replacement is included as seen in pics, also includes crossover in excellent condition, please see pics. You will receive everything you see in the pictures, if it is not pictured then it’s not included. All items have a hidden invisible security mark. Please view pictures and ask any questions you might have. Have a nice day!
Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!)

]]> https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only-2/feed/ 0 Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!) https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only/ https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only/#comments Thu, 07 Aug 2025 18:19:41 +0000 https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only/ read more »]]>
Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!)

For sale is an excellent working Acoustic Research P428PS amplifier in excellent condition, also includes crossover in excellent condition, please see pics. You will receive everything you see in the pictures, if it is not pictured then it’s not included. All items have a hidden invisible security mark. Please view pictures and ask any questions you might have. Have a nice day!
Acoustic Research Ar P428ps Powered Subwoofer Speaker Amplifier (amp Only!)

]]> https://acousticresearchspeakers.net/2025/08/acoustic-research-ar-p428ps-powered-subwoofer-speaker-amplifier-amp-only/feed/ 0 Vintage Acoustic Research AR P428PS Speakers https://acousticresearchspeakers.net/2020/04/vintage-acoustic-research-ar-p428ps-speakers/ https://acousticresearchspeakers.net/2020/04/vintage-acoustic-research-ar-p428ps-speakers/#comments Wed, 22 Apr 2020 13:02:46 +0000 http://acousticresearchspeakers.net/2020/04/vintage-acoustic-research-ar-p428ps-speakers/ read more »]]>

Vintage Acoustic Research AR P428PS Speakers

Acoustic Research AR P428PS Speakers. The item “Vintage Acoustic Research AR P428PS Speakers” is in sale since Saturday, March 21, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “johnjay5″ and is located in Lititz, Pennsylvania. This item can be shipped worldwide.

Model: P 428 PS
Country/Region of Manufacture: United States
Brand: Acoustic Research

]]> https://acousticresearchspeakers.net/2020/04/vintage-acoustic-research-ar-p428ps-speakers/feed/ 0 Acoustic Research AR P428PS Speaker Pair Good Used Condition Local Pickup https://acousticresearchspeakers.net/2020/02/acoustic-research-ar-p428ps-speaker-pair-good-used-condition-local-pickup/ https://acousticresearchspeakers.net/2020/02/acoustic-research-ar-p428ps-speaker-pair-good-used-condition-local-pickup/#comments Fri, 07 Feb 2020 02:33:01 +0000 http://acousticresearchspeakers.net/2020/02/acoustic-research-ar-p428ps-speaker-pair-good-used-condition-local-pickup/ read more »]]>

Acoustic Research AR P428PS Speaker Pair Good Used Condition Local Pickup

Acoustic Research AR P428PS Speaker Pair – Good Used Condition. Free local pick-up only 19083. Very Good pre-owned condition. Front grill cloths are original and are in very good condition. Includes original owners manual. Each speaker has a built-in 8 inch sub-woofer driven by a 100 watt discrete monaural internal power amplifier. Still sound great after all of these years. Hate to part with them but we are downsizing. LOOK closely at the pictures. The item “Acoustic Research AR P428PS Speaker Pair Good Used Condition Local Pickup” is in sale since Monday, November 11, 2019. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “bay_userid” and is located in Havertown, Pennsylvania. This item can’t be shipped, the buyer must pick up the item.

Brand: Acoustic Research

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