Updated Photos Added – speakers are in working condition. No hum or buzz. 3 ways, 3 speaker acoustic suspension system, and a floor type. For low-pass: 30cm corn type For inside regions: 3.8cm dome shape For high regions: 1.9cm dome shape. Output sound pressure level. 4ohms (a minimum of 3.2ohms). The continuation maximum input. Inside region: Three-step switching High region: Three-step switching. Width 356x height 800x depth of 290mm. The item “Acoustic Research AR91″ is in sale since Wednesday, December 02, 2015. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “sove.us2014″ and is located in Leawood, Kansas. This item can be shipped to United States.
- Brand: Acoustic Research
- Model: AR 91