FAST with Alpair 7.3, Trio8 and MiniDSP. - 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 9th February 2012, 08:15 PM   #1
grakka is offline grakka  Sweden
diyAudio Member
 
Join Date: Aug 2010
Default FAST with Alpair 7.3, Trio8 and MiniDSP.

I'm going to start a new project at the end of this month and I'm going for a pair of Alpair 7.3 grey in golden ratio bass reflex enclosures found here, together with a CSS Trio8. The reason for my choice is that I've always wanted to try fullrange speakers (midrange magic) and I know that I'll mostly would like some more bass, therefore FAST. All three speakers including freight cost for a total of 464$ seems like a fair deal to me and fits my budget.

I got a good price for two 41hz's amp10 kits so i couldn't resist to buy them. I'm thinking of using one of these amps for the Alpairs and the second one will be bridged for the sub (200w @ 8ohm). I'll be using my computer as source with toslink to my DacMagic, to a MiniDSP, to these amps. I'm hoping of good or at least decent performance with this combination. If not, I got a test system for future builds.

The only thing I'm concerned about is the enclosure for the Trio8. I prefer a enclosure that can deliver decent bass down to 30hz or close. Either closed, vented or ported box and as small as possible. For some reason I find it hard to find any box designs for the Trio8 on the web. I do know the t/s parameters but I'm too insecure to calculate a box by my own. That's the thing I would like to get some help with (volume and port length, if any).

The setup will be used for all kind of music in a 20-30m2 room. Do you guys think this setup will work well? My future plans would be to use my lm3886 amp to the Alpairs and build a lm4780 amp for the sub.

I will of course share pictures during the build time
  Reply With Quote
Old 9th February 2012, 09:20 PM   #2
Bigun is online now Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Blog Entries: 2
Quote:
Originally Posted by grakka View Post
For some reason I find it hard to find any box designs for the Trio8 on the web.
Altair Sub (2x TRIO8's)
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 9th February 2012, 09:27 PM   #3
Henkjan is offline Henkjan  Netherlands
diyAudio Member
 
Henkjan's Avatar
 
Join Date: Jan 2006
Location: Berkel en Rodenrijs
You have a DSP, so closed with a LT, like I did in this design:
Nescio: Alpair5 + Trio8 + DSP = wow
  Reply With Quote
Old 9th February 2012, 09:28 PM   #4
grakka is offline grakka  Sweden
diyAudio Member
 
Join Date: Aug 2010
Quote:
Originally Posted by Bigun View Post
My bad. Two will be too expensive for me and the amp I will use wont handle two subs that well i guess. What I'm looking for is a enclosure for a single Trio8 (or another 8-10" sub that fits the amp).
  Reply With Quote
Old 9th February 2012, 09:40 PM   #5
grakka is offline grakka  Sweden
diyAudio Member
 
Join Date: Aug 2010
Quote:
Originally Posted by Henkjan View Post
You have a DSP, so closed with a LT, like I did in this design:
Nescio: Alpair5 + Trio8 + DSP = wow
Nice design! Which volume do you use for the Trio8?
  Reply With Quote
Old 9th February 2012, 10:30 PM   #6
Henkjan is offline Henkjan  Netherlands
diyAudio Member
 
Henkjan's Avatar
 
Join Date: Jan 2006
Location: Berkel en Rodenrijs
send me a PM with your email address, I'll send you the plans
  Reply With Quote
Old 10th February 2012, 03:48 PM   #7
grakka is offline grakka  Sweden
diyAudio Member
 
Join Date: Aug 2010
These two puppies just arrived to their new home!

I'll maybe start soldering on Sunday or during the next week. I also have some sheets of of 19mm MDF left over from a car stereo build. Thinking of using it for the Alpair 7 cabs. Not the best material to use but since its free I'll probably give it a try.
Attached Images
File Type: jpg amp10.jpg (107.3 KB, 249 views)
  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
Advice for FAST with alpair 7 Veggiel Full Range 6 14th January 2013 10:26 AM
FAST Build: Alpair 7.3 - Seas L26ROY Swifty Markaudio 28 26th June 2012 07:27 AM
Alpair 7 FAST Prototype Westy37 Markaudio 9 17th October 2011 08:48 AM
Alpair 7.3 FAST help needed! StevenZ Markaudio 10 28th September 2011 09:24 PM
Woofer to use in a FAST with Alpair 5 (desktop system) Westy37 Multi-Way 5 31st March 2011 06:23 PM


New To Site? Need Help?

All times are GMT. The time now is 08:24 PM.


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