Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

T-amp for guitar busking/portable PA
T-amp for guitar busking/portable PA
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 23rd January 2010, 01:20 PM   #1
Racket Scientist is offline Racket Scientist  United States
diyAudio Member
 
Join Date: Jan 2010
Default T-amp for guitar busking/portable PA

I've been tempted to buy one of the Dayton T-amps, put it in a cab with 2 tiny 4 ohm speakers (maybe Jensen 6" Mods) and use it as a battery powered guitar amp (and occasional PA). Anybody here do something like that and have thoughts or advice?
  Reply With Quote
Old 24th January 2010, 07:33 PM   #2
gfiandy is online now gfiandy  United Kingdom
diyAudio Member
 
gfiandy's Avatar
 
Join Date: Jul 2003
Location: Cambridge UK
I don't think I have seen anyone do that exact configuration, can't see why it wouldn't work though.

This thread has alot of information on this kind of build as a portable party system.
http://www.diyaudio.com/forums/class...achine-49.html

T-Amps typically are about 20W max so the larger the speaker you can fit in the better as they are usually more efficient. If you don't need alot of bass then small PA speakers would be ideal. But at the size you are talking about you will probably need to compromise on level to achieve some bass.

Regards,
Andrew
  Reply With Quote
Old 29th January 2010, 02:56 AM   #3
Buckapound is offline Buckapound  United States
diyAudio Member
 
Join Date: Feb 2006
Location: Chicago, IL
Yes, absolutely, you should do something like this.

As noted, the Boominator thread has lots of good info, so get a beer and read through it.

The Tripath 2020 chips will give you a bit more power than the 2024 chips in the Dayton SI boards. Either the 41hz Amp6 (kit) or the boards on eBay from arjenhelder (assembled) are recommended, although there may be other OK modules available.

As for speakers, do try to match the driver to the size and geometry of the box(es), and don't just arbitrarily stick speakers in a box. Do a little searching on your driver of choice and you may be able to take advantage of somebody else's effort to get the thing to sound good, or go to a site like Zaph's (Zaph|Audio) to check out well-designed speakers. Even though you are making a portable, you can use the geometry of tried and true speaker designs and rearrange them to work for your portable.

Then, of course there's the matter of batteries, charger, nuclear power source, self-propulsion and all the rest, so this could grow into a complicated project, but the good news is that you can work on it one stage at a time, and eventually, you will have a show-stopper.

--Buckapound
  Reply With Quote
Old 30th January 2010, 02:48 AM   #4
Racket Scientist is offline Racket Scientist  United States
diyAudio Member
 
Join Date: Jan 2010
Now I'm really getting "out there". I just bought a couple of 8" Neo speakers. I plan to buy some cheap Lowes Sonotube, probably the 12" version, model with the Sonosub program and tune to about 75 Hz, use some toilet paper roll ports and MDF ends, fill loosely with Acoustistuff, and make 2 tubular "speaker cabs". I'm expecting each cab to weigh about 6 lbs each. I'll use those with a T-amp when I need a tiny PA outdoors or to mic my classical for a wedding when its hard to find a nearby outlet, and with my Crate Powerblock when I need a superlight and portable but fairly high output guitar amp. It should be a while before I get it all together, but I'll try to remember to report back.
  Reply With Quote
Old 13th January 2011, 08:53 PM   #5
mr. doom is offline mr. doom  United States
diyAudio Member
 
Join Date: Mar 2006
Location: Montana Missoula
Default Here is my 10" system.

Quote:
Originally Posted by Racket Scientist View Post
Now I'm really getting "out there". I just bought a couple of 8" Neo speakers. I plan to buy some cheap Lowes Sonotube, probably the 12" version, model with the Sonosub program and tune to about 75 Hz, use some toilet paper roll ports and MDF ends, fill loosely with Acoustistuff, and make 2 tubular "speaker cabs". I'm expecting each cab to weigh about 6 lbs each. I'll use those with a T-amp when I need a tiny PA outdoors or to mic my classical for a wedding when its hard to find a nearby outlet, and with my Crate Powerblock when I need a superlight and portable but fairly high output guitar amp. It should be a while before I get it all together, but I'll try to remember to report back.
http://lh6.ggpht.com/_yKKUFHQ3jAc/TH...oom%20bike.JPG

Neo 10" drivers and a Pizzo array, 14lbs each and (loud enough) with a $50 sure T-Amp Not what I would consider "portable" off the bike anyways.

It is not easy to build a "Pro" speaker for less than you can buy one and I consider myself a expert at building cheap speakers, after the drivers, X-over, handles, jacks, wood,corners and grilles you need to fur/rhynolite it. Quite often a used Pro speaker will sell for less than you can buy the drivers for.
  Reply With Quote
Old 13th January 2011, 10:53 PM   #6
wakibaki is offline wakibaki  United Kingdom
Banned
 
Join Date: Jan 2008
Yes, why not, it'll probably make better use of your battery than the 7 Watt TBA810S one I built about 15 years ago, but you may want to include some kind of sound shaping like a Behringer V-Amp or Tech 21 SansAmp at the front end as the overall sound will probably be a bit too clean and clinical for guitar.

TBA810S busking amp with 15 4AH nicads:-

tba810s.jpg

w
  Reply With Quote
Old 14th June 2011, 10:18 PM   #7
Thegreyman is offline Thegreyman
diyAudio Member
 
Join Date: Nov 2009
I think its a brilliant idea. Take a look here:

Battery-powered "Busking" amp.

Please let us know your progress.
  Reply With Quote

Reply


T-amp for guitar busking/portable PAHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bogen M330A Tube PA Amp for Guitar zeke Instruments and Amps 28 6th December 2009 06:58 AM
Tube PA to Guitar Amp Conversion Help valadezpm Instruments and Amps 3 6th February 2009 10:45 AM
Resources for PA - Guitar amp conversion pjanda1 Instruments and Amps 1 21st August 2008 07:23 PM
Bogen J130 PA to guitar amp? bigaldo Instruments and Amps 0 18th February 2008 04:36 AM
Bogen PA to Guitar Amp, few questions Turbo7MN Instruments and Amps 100 5th April 2006 01:41 AM


New To Site? Need Help?

All times are GMT. The time now is 05:19 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki