2.5 way Peerless 831735

robots · 11th April 2011, 06:24 PM

I'm thinking about making a 2.5 way with the Peerless 831735 and maybe with the Vifa XT25BG60-04 tweeter.

Which program should I use to model this and come up with a crossover design?

Inductor · 11th April 2011, 08:28 PM

You can use FRDtools and Speaker Workshop.

robots · 13th April 2011, 04:06 AM

today i bought 6 of these drivers, for a pair of 3-ways. ready or not here i come.

wyomingbob · 07:23 PM

Finished my folded TQWTs using these drivers. This was a first DIY project.
The speakers do sound very good, but hearing the 831735s makes me almost wish for a pair of them in each cabinet. I did do calculations for such a design, and found it would need a 5-foot tower with a 117" internal path.

Pictures are below. You'll see why a somewhat tall, narrow design was required.

External dimensions are 8" wide, 14" deep, 47" tall. The internal taper goes from 6.5"^2 to 78"^2. Internal path is 93". The port is 2.75" wide x 4.5" deep. All built from 3/4" birch ply, with 1/2" particle board sandwiched on the baffle, top and bottom. Yes, that tweeter is back-mounted, with a 'waveguide' routed and sanded into the 1.25" thick front baffle. The cabinets sit on 3/4" spikes, which did make an improvement in the bass.

critofur · 26th May 2011, 11:58 PM

Does your receiver/amp whatnot have a "bass boost" button? last time I was listening to a pair of speakers which had one Peerless HDS Nomex woofer on each I found I liked the sound a lot better with the "bass boost" button on

wyomingbob · 27th May 2011, 08:35 PM

Quote:

Originally Posted by critofur

Does your receiver/amp whatnot have a "bass boost" button?

The speakers play through a 65-watt Onkyo home theater receiver. I tried retaining the subwoofer and crossing over at 40hz, but ended up disconnecting the sub. Right now I'm just using the tone controls, keeping the treble flat and raising the bass by 4dB. Currently listening to a piece by Govinda (YouTube - ‪Govinda - Two Become One‬&rlm;) and it sounds very nice.

By the way, picked up some 'new' surround speakers last week at a thrift shop - a pair of Paradigm Atom v.2's for $10. They'll do for a while until I build a pair of my own. Next project might be a restoration/modification of my old Mach Ones.

blue934 · 28th May 2011, 02:48 AM

PE is now offering Mach One replacement woofers! - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com

11th April 2011, 06:24 PM	#1
robots diyAudio Member Join Date: Aug 2010	2.5 way Peerless 831735 I'm thinking about making a 2.5 way with the Peerless 831735 and maybe with the Vifa XT25BG60-04 tweeter. Which program should I use to model this and come up with a crossover design?

11th April 2011, 08:28 PM	#2
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	You can use FRDtools and Speaker Workshop. __________________ What the Hell is this crap?! It's not crap, it's muzak.

23rd May 2011, 07:18 PM	#4
wyomingbob diyAudio Member Join Date: Oct 2010 Location: Ex-Wyoming, now in Utah.	TQWTs completed with Peerless 831735s Finished my folded TQWTs using these drivers. This was a first DIY project. The speakers do sound very good, but hearing the 831735s makes me almost wish for a pair of them in each cabinet. I did do calculations for such a design, and found it would need a 5-foot tower with a 117" internal path. Pictures are below. You'll see why a somewhat tall, narrow design was required. External dimensions are 8" wide, 14" deep, 47" tall. The internal taper goes from 6.5"^2 to 78"^2. Internal path is 93". The port is 2.75" wide x 4.5" deep. All built from 3/4" birch ply, with 1/2" particle board sandwiched on the baffle, top and bottom. Yes, that tweeter is back-mounted, with a 'waveguide' routed and sanded into the 1.25" thick front baffle. The cabinets sit on 3/4" spikes, which did make an improvement in the bass. Last edited by wyomingbob; 23rd May 2011 at 07:23 PM. Reason: comment on placement

26th May 2011, 11:58 PM	#5
critofur diyAudio Member Join Date: Jan 2004 Location: Columbus, OH	Does your receiver/amp whatnot have a "bass boost" button? last time I was listening to a pair of speakers which had one Peerless HDS Nomex woofer on each I found I liked the sound a lot better with the "bass boost" button on __________________ Critofur http://www.ohmspeakers.com <- all the folks here are my friends

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13th April 2011, 04:06 AM	#3
robots diyAudio Member Join Date: Aug 2010	today i bought 6 of these drivers, for a pair of 3-ways. ready or not here i come.

28th May 2011, 02:48 AM	#7
blue934 diyAudio Member Join Date: Mar 2007	PE is now offering Mach One replacement woofers! - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com

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