In addition to the built-in network drive, the 4331A can be used for 2-channel multi-amp drive by switching the rear switch. The enclosure uses a bass reflex system. You can also change the mounting of the acoustic lens so that it can be used in either vertical or horizontal orientation.

I finally was able to hook my 4331A speakers to my Cary amp last week. I also changed out the 6922 tubes to a pair of Genalex Gold Lion 6922 tubes. I'm very happy with the performance and how they sound together.

4331A and 4333A Information. updated: Oct 2020 ... Information Documents: JBL Professional Model Number Listing: updated: Oct 2020 47.3 KB Oct 2020: If any of the links above result in strange characters in your browser, please right-click the file to save it to your computer. Parts & Service. Part Lists; Authorized Service Partner Assets ...

Dec 4, 2011 · I've been listening to the JBL speakers for past several days - and initial impressions are very good. They are still not in my larger Bonus Room - so haven't been able to turn them up and hear them perform at higher levels. But at lower levels - they sound very balanced with excellent bass.

Accurate, smooth reproduction 44 dB SPL at 30 feet with a l-milliwatt input 101 dB SPL at 10 feet at one-half rated power input Components: 15inch low frequency loudspeaker, high frequency …

The 4331A and 4333A systems are provide with a higdh level, passive frequenc dividiny networkg Th.e circuitry ... JBL Professional Products are not intended for household use. JBL Professional Division James B. Lansing Sound, Inc. 8500 Balbo Boulevara d Northridge, Californi 9132a 9

4320、4331の改良型として開発された2ウェイスピーカーシステム。 低域には38cmコーン型ウーファー2231Aを搭載し、高域用には音響レンズ2308とエクスポネンシャルホーン2312、ドライバー2420を組み合わせたホーン型ユニットを搭載しています。 4331Aは内蔵ネットワークによるドライブ以外にも、背面スイッチの切替によって2チャンネルマルチアンプドライブが可能です。 エンクロージャーにはバスレフ方式を採用しています。 また、縦横どちらの配置でも使 …

Ultra rare JBL 4331A Professional Monitor speakers. These vintage JBL's listed for nearly $3,000 back in 1974. They have new grill cloth and the 15" woofers have new foam that was professionally installed. The cabinets are in very good condition with …

To purchase 4331/4331A/4331B spares or accessories, please contact the company via their website or visit an authorised retailer.

Feb 16, 2025 · All of the drivers have been tested and are in working order. The drivers and the cabinets are in excellent condition. A few small imperfections on the grills. Including a hole on the top side of (1) grill. Comes with the original boxes. Please see photos.