small boom box

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I've seen some threads by KWB75 and was wondering whether he or someone
 else could advise on the volume and port size as i need to start 
cutting the wood by next week and have been trying to 
calculate sizes but the figures i get seem inconsistent i get 22.8l  
from winISD but when i looked at this thread he said a target of 7.5 http://forum.speakerplans.com/my-boombox_topic62315.html so i
 am now well and truely confused i am using this amp 
http://www.ebay.co.uk/itm/MKIII-Tripath-TA2020-PCB-25watt-Class-T-amplifier-UK-/271274659476?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item3f293ace94
 and two monacor sp60/4, still considering the tweeters. Any help at this stage would be really appreciated.
Thanks
Alex

Edited by alex. - 11 November 2013 at 11:01pm

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
alex. Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 02 September 2013 Status: Offline Points: 14	Post Options Post Reply Quote alex. Report Post Thanks(0) Quote Reply Topic: small boom box Posted: 11 November 2013 at 10:21pm
	I've seen some threads by KWB75 and was wondering whether he or someone else could advise on the volume and port size as i need to start cutting the wood by next week and have been trying to calculate sizes but the figures i get seem inconsistent i get 22.8l from winISD but when i looked at this thread he said a target of 7.5 http://forum.speakerplans.com/my-boombox_topic62315.html so i am now well and truely confused i am using this amp http://www.ebay.co.uk/itm/MKIII-Tripath-TA2020-PCB-25watt-Class-T-amplifier-UK-/271274659476?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item3f293ace94 and two monacor sp60/4, still considering the tweeters. Any help at this stage would be really appreciated. Thanks Alex Edited by alex. - 11 November 2013 at 11:01pm

lutkeveld Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 23 September 2013 Location: The Netherlands Status: Offline Points: 517	Post Options Post Reply Quote lutkeveld Report Post Thanks(0) Quote Reply Posted: 09 November 2013 at 11:24am
	You could cut cost by buying a ta202x board. The monacors reach quite high so tweeters aren't essential but they are preferable. The tweeters you linked can be cross-overed by a cap in serie.

DANofCUS Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 23 January 2013 Location: Thatcham Status: Offline Points: 92	Post Options Post Reply Quote DANofCUS Report Post Thanks(0) Quote Reply Posted: 09 November 2013 at 10:07am
	I think you should buy from a uk supplier if you're in the UK there is amp suppliers in UK , there is lithium ion battery suppliers in UK , there is also speaker driver suppliers in UK and here is a link for crossovers http://www.v-cap.com/speaker-crossover-calculator.php#secondOrderCalculator

alex. Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 02 September 2013 Status: Offline Points: 14	Post Options Post Reply Quote alex. Report Post Thanks(0) Quote Reply Posted: 08 November 2013 at 10:25pm
	I've asked a similar question on here before but i need to clarify a few points first of all i am aiming to build a smallish boombox for around the £50 mark not including case and from what i've read a pair of these would work quite nicely http://%20www.europe-audio.com/Product.asp?Product_ID=5536 - http://www.europe-audio.com/Product.asp?Product_ID=5536 my second question is would i need a pair of tweeters with them suchas these http://www.europe-audio.com/Product.asp?Product_ID=7640 - http://www.europe-audio.com/Product.asp?Product_ID=7640 however this would be above my budget. I was looking something like this for the amp http://www.ebay.co.uk/itm/2-X-50Watt--D-Audio-Amplifier-TDA7492-19V-adapter-/111140230182 - http://www.ebay.co.uk/itm/2-X-50Watt-Class-D-Audio-Amplifier-TDA7492-19V-adapter-/111140230182 any thoughts on it ? and would i need a crossover with and without the tweeters ? also any thoughts on powering it as i would like it to be reasonably portable a few hours battery life is what i would be looking for. Thanks for any help you can give. Alex. Edited by alex. - 08 November 2013 at 10:27pm