BeoPlay 12-inspired Portable Audio System

Helsethn · 06:58 PM

I'm planning to build a replica of the beautiful B&O Beolit 12 portable speaker. The speakers will be two 3" fullrange-speakers driven by a 2x15W class-D amp. A 12v battery will power the system. The dimensions of the Beolit 12 are 23 x 18,8 x 13,3 cm. This will be the maximum size of my enclosure with all components inside(battery, amp and wiring). This is not a enthousiast hifi project, it is more of a designproject while trying to get the best sound i can get within the limits of the project. This is the components i've chosen so far:

Amplifier:
2 X 15Watt Class D Audio Amplifier Board - TA2024_Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore (Bought)

Speakers:
Tang Band W3-881SJF 3" Full Range Speaker 264-911

Battery:
High quality New DC 12V Portable 9800mAh Li-ion Super Rechargeable Battery Pack | eBay

I am not really sure about the speakers i have chosen. My knowledge of speaker-design is rather limited. High effiency, flat responce curve and has to fit a small box are the criterias for the driver(correct me if i'm wrong). Do you guys have any suggestions for other speakers that will fit my need?

tinitus · 17th June 2012, 07:14 PM

try search the forum for 'boombox'

funny word

Helsethn · 19th June 2012, 09:31 AM

Quote:

Originally Posted by tinitus

try search the forum for 'boombox'

funny word

I've read those, and it's not exactly what i'm looking for. I want something really small and really portable. All the boomboxes out there are enormous and not portable in the way i think of portable. What i'm asking is how i can make the smallest possible speaker with the least compromises in terms of sound quality. Super hifi quality is not a goal.

Brotaku · 02:31 AM

I built the microfonkens with fostex fe127 and they are the best size:quality ratio IMHO. They are about 10"x6"x6". It amazes me how much they sound like my frugelhorns but with a little less bass. I always wanted to build a pair connected at their bottoms with a TA2020 amp and a lithium ion battery in between for a great prattle system. Use 9mm Baltic birch to make it light if you want.

Helsethn · 2nd July 2012, 02:53 PM

Thank you, I will check out baltic birch. I have now bought a 6800 mah li-po battery from ebay. I hope the voltage is high and stable enough for the amplifier.

Helsethn · 3rd February 2013, 06:38 PM

Small Portable Speaker Covered With Wool

I have now made this and posted it on instructables. Check it out

16th June 2012, 03:09 PM	#1
Helsethn diyAudio Member Join Date: Jun 2012	Beolit 12-inspired Portable Audio System I'm planning to build a replica of the beautiful B&O Beolit 12 portable speaker. The speakers will be two 3" fullrange-speakers driven by a 2x15W class-D amp. A 12v battery will power the system. The dimensions of the Beolit 12 are 23 x 18,8 x 13,3 cm. This will be the maximum size of my enclosure with all components inside(battery, amp and wiring). This is not a enthousiast hifi project, it is more of a designproject while trying to get the best sound i can get within the limits of the project. This is the components i've chosen so far: Amplifier: 2 X 15Watt Class D Audio Amplifier Board - TA2024_Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore (Bought) Speakers: Tang Band W3-881SJF 3" Full Range Speaker 264-911 Battery: High quality New DC 12V Portable 9800mAh Li-ion Super Rechargeable Battery Pack \| eBay I am not really sure about the speakers i have chosen. My knowledge of speaker-design is rather limited. High effiency, flat responce curve and has to fit a small box are the criterias for the driver(correct me if i'm wrong). Do you guys have any suggestions for other speakers that will fit my need? Last edited by Helsethn; 17th June 2012 at 06:58 PM. Reason: Wrong productname

29th June 2012, 02:27 AM	#4
Brotaku diyAudio Member Join Date: Nov 2009 Location: Austin, TX	I built the microfonkens with fostex fe127 and they are the best size:quality ratio IMHO. They are about 10"x6"x6". It amazes me how much they sound like my frugelhorns but with a little less bass. I always wanted to build a pair connected at their bottoms with a TA2020 amp and a lithium ion battery in between for a great prattle system. Use 9mm Baltic birch to make it light if you want. Last edited by Brotaku; 29th June 2012 at 02:31 AM.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Portable Sound System	hashmaster	Construction Tips	2	29th June 2012 02:14 AM
Portable PA system	renzuken101	PA Systems	14	4th November 2011 02:50 AM
TA2020 MKII Portable system	Needadispenserhere	Chip Amps	3	6th February 2011 07:05 PM
Inspired by Linkwitz: presentation of a dipole speaker system	StigErik	Multi-Way	22	20th July 2010 12:28 PM
please help with 2x12w 12 V portable audio amp	BabaRoga	Chip Amps	13	8th March 2006 08:20 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

17th June 2012, 07:14 PM	#2
tinitus diyAudio Moderator Join Date: Nov 2005	try search the forum for 'boombox' funny word

2nd July 2012, 02:53 PM	#5
Helsethn diyAudio Member Join Date: Jun 2012	Thank you, I will check out baltic birch. I have now bought a 6800 mah li-po battery from ebay. I hope the voltage is high and stable enough for the amplifier.

3rd February 2013, 06:38 PM	#6
Helsethn diyAudio Member Join Date: Jun 2012	Small Portable Speaker Covered With Wool I have now made this and posted it on instructables. Check it out