AudioRoundTable.com - RDF feed
type: channel
description: Audio advice and discussions with audiophiles and professionals. Free discussion forums, open to all and frequented by industry experts. Ask questions and get advice on stereos, speakers, hi-end amplifiers, pre-amps, home theater, tube hi-fi, turntables, vinyl, tweaks, music, films, video, DVDs and more.
items: Small sub
items: PiAlign'ed 2235
items: Hmmmmm
items: Re: Hmmmmm
items: Thx Wayne

Small sub
type: item
description: I'm toying with the idea of building a set of subs to use with the professionial 4Pi's I'm building. I would like to use the JBL 2235 in 4 cubic foot cabinets. My concern is how much of a performance compromise it will be using that driver in that size of cabinet. I would appreciate input from anyone with experience with this particular driver. Kelly
creator: LuxmanLover
date: 2002-07-14T17:35:08-00:00

PiAlign'ed 2235
type: item
description: PiAlign recommends 4 cubic tuned to 30Hz with a 2.25" x 4" x 3.6" long rectangular port. You can also substitute a cylindrical port, 4" diameter and 4" long with excellent results. The system -3dB point is 37Hz and -10dB at about 27Hz.
creator: Wayne Parham
date: 2002-07-14T19:22:42-00:00

Hmmmmm
type: item
description: I must not be using PiAlign properly...cause it said I needed 8 cubic feet for a 2235 (which is funny cause I actually want to use 2 2235's per cabinet for a total cabinet size of 8 cubic feet hehehehehe, it should be wild!) Kelly
creator: LuxmanLover
date: 2002-07-14T19:53:47-00:00

Re: Hmmmmm
type: item
description: For the JBL 2235H - Vad=16.2, Frd=20 and Qd=4.0. So when you enter all that into PiAlign, it suggests 4.0 cubic feet tuned to 30Hz.
creator: Wayne Parham
date: 2002-07-14T20:23:39-00:00

Thx Wayne
type: item
description: Worked that time, must have entered the wrong value for vad (doh). 8 cubic feet makes me very happy!!!!!! Kelly
creator: LuxmanLover
date: 2002-07-14T21:18:23-00:00