FAST woofer choice for Alpair 7.3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th January 2013, 11:37 AM   #1
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Default FAST woofer choice for Alpair 7.3

Hi.

I am looking to develop a few products that can be produced and sold on a very small 'made to order' level.

I am looking at producing a FAST that resembles the B&W 800D
Click the image to open in full size.

With the Alpair 7.3 in a turned plywood teardrop shape.

And a woofer or two in a curved plywood cabinet.

I am currently using a miniDSP for active crossover. I believe I would cross somewhere between 80Hz-150Hz, is this strickly subwoofer territory?

Based in Uk, driver choice and their related prices are not good as those in the US.

Can anyone recommend fantastic woofer. 10" would match the teardrops diameter and look visually good, Im happy to have any sort of cabinet design, be it ported, sealed, with a passive radiator...

The only driver that has sprung out at me so far is the Peerless XLS10 which can be found on ebay for 70 a piece. This is towards the upper end of my budget. If I am going to try and sell them, they obviously have to be of the highest quality...but putting a 750 Accuton woofer in, would price out most markets. I guess 100 a driver shipped would be top.

These will be demo units, and hopefully will lead to the sale of a few as built units or perhaps kits. So drivers must be able to be sourced easily.

Thanks

Last edited by Studio Au; 14th January 2013 at 05:45 PM.
  Reply With Quote
Old 14th January 2013, 05:02 PM   #2
diyAudio Member
 
tuxedocivic's Avatar
 
Join Date: Jan 2011
Location: Ladysmith, BC
Price per driver? You mention the XLS10 and 70 pounds. Would that be the top of your budget, or about right?

How deep do you need the bass to go?

How steep of cross over are you ok with?

Maybe: The Madisound Speaker Store
  Reply With Quote
Old 14th January 2013, 05:38 PM   #3
diyAudio Member
 
Join Date: May 2009
Location: Seattle, WA
I think Bob Brines was considering this woofer for a similar project:

Peerless 835026 8" Aluminum Cone HDS Woofer 264-1100

He said that it simmed very well, and also mentioned that from an aesthetic point of view it would match the color of the silver alpairs. It's something to consider! (I know these aren't 10" woofers, but two 8" would still be pretty beefy.)
__________________
Then again, what do I know?
  Reply With Quote
Old 14th January 2013, 05:54 PM   #4
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Thanks, I have edited the original post to reflect your questions for other readers (80-150Hz crossover, Active XO so can play around)

The Peerless 8" looks good. At $66 is 50. In english/European stockists 75. If I needed two for each cabinet 300 total (or less from the states, but once taxes, shipping, more taxes...) perhaps a little too much?

Willing to stretch for the right driver, Would prefer to keep it to a single unit (or with passive radiator) as the miniDSP has 4 outs, so two woofers would have to be joined in parallel or series which seems to add perhaps unnecessary complications.

I keep on hearing about TangBand, and them making some really great products, but again it seems to mainly be in the US (Europe-Audio sell them) and we don't have access to the prices that make them so appealing.

So ideally woofer choices that are available in Europe...
  Reply With Quote
Old 14th January 2013, 06:02 PM   #5
diyAudio Member
 
Join Date: May 2009
Location: Seattle, WA
yeah, tangband's W8-750C is supposed to be a great woofer. check this project:

Loudspeakers by Emil Attlid
__________________
Then again, what do I know?
  Reply With Quote
Old 14th January 2013, 06:08 PM   #6
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Can Anyone recommend European sites that stock Tangband? Europe-Audio has a very limited offering.
  Reply With Quote
Old 14th January 2013, 07:41 PM   #7
diyAudio Member
 
tuxedocivic's Avatar
 
Join Date: Jan 2011
Location: Ladysmith, BC
No sure where you could get Tang Bands. But isn't there quite a few sources for Peerless, scan speak, seas, etc.?
  Reply With Quote
Old 14th January 2013, 08:08 PM   #8
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Bill Poletti tested a 10" peerless with good results.

I would suggest an XO in the 125-250 Hz range would make more sense. The woofer should have reasonable response up to ~1kHz.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 14th January 2013, 08:25 PM   #9
Toaster is offline Toaster  United Kingdom
diyAudio Member
 
Join Date: Jun 2004
Location: South East England
Another possibility is the SEAS LR22RN4X/P (H1208), which you can get from Wilmslow Audio. They are about 70. The SEAS L26ROY or 'RO4Y would probably be ideal, but is too expensive. An application of the LR22RN4X/P is in the Hi-fi Critic magazine's 'Rhythm King' kit speaker, used in a sealed enclosure. It did occur to me when I heard of that design that an Alpair 7 could be substituted for the BMR and probably sound better too. Sensitivity of the two drivers is fairly close, IIRC, so a passive version might work well.
  Reply With Quote
Old 14th January 2013, 08:26 PM   #10
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Here is the basic idea.

Click the image to open in full size.

However as this will in a few months hopefully form the bass cabinet of a compression driver/horn combination ala Avant Garde Duo, maybe I should look into loading the driver?

Ill draw up some pictures, but until then 10" woofers in the UK for reasonable prices is what im looking for.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alpair 10 vs Alpair 7 - Open baffle with boxed woofer. Passive Xover. TiMBoZ Markaudio 56 3rd March 2014 08:21 PM
Alpair 6p FAST Einric Full Range 4 3rd November 2012 03:53 AM
FAST build with an Alpair 7.3 and a 12" Peavy Pro 12 woofer golgiapparatus Markaudio 6 2nd November 2012 01:07 PM
Alpair 7 FAST Prototype Westy37 Markaudio 9 17th October 2011 09:48 AM
Woofer to use in a FAST with Alpair 5 (desktop system) Westy37 Multi-Way 5 31st March 2011 07:23 PM


New To Site? Need Help?

All times are GMT. The time now is 10:50 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2