Richard W. Solomon
Thu, 04 Feb 2010 22:09:15 -0800
Radio Shack sold a small Stereo Amplifier that appears on the "evil empire" every so often. I use one with a pair of Bose "Cube" speakers. Works very well. 73, Dick, W1KSZ -----Original Message----- >From: Tim Ellison <telli...@itsco.com> >Sent: Feb 5, 2010 12:02 AM >To: "audio...@charter.net" <audio...@charter.net>, Dudley Hurry ><jhu...@austin.rr.com> >Cc: 'FLEX USERS' <flexradio@flex-radio.biz> >Subject: Re: [Flexradio] Speaker project (was the 'bose speakers') > > You could use a stereo kit PA. Like one of these >http://www.electronickits.com/kit/complete/complete.htm#Amplifier%20Kits%20And%20Modules > > > >-Tim > >-----Original Message----- >From: flexradio-boun...@flex-radio.biz >[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Jim Barber >Sent: Thursday, February 04, 2010 11:42 PM >To: Dudley Hurry >Cc: 'FLEX USERS' >Subject: Re: [Flexradio] Speaker project (was the 'bose speakers') > >Hi Dudley, > >The time... The 'audioguy' always has the time for speaker projects, but I'll >concede that you may not. :-) > >The size - yes, even the "small" version may be bigger than a pair of micro PC >speakers. Once cab I was tinkering with tonight is 6x6x6" >internal volume and made from 1/2" MDF. They can get bigger and smaller. > >Well shielded from RF - That will be attended to in the separate amplifier >section. Both for goes-in and goes-out, since the amp module I'm working with >is Class D and can generate some hash unless put in a metal box and >bypassed/choked. If someone comes up with an inexpensive linear amp module, >kit or design that meets spec we can look at that too. Class D is nice because >it can be tucked away in a diecast box without heat issues. > >Sound quality vs size - not sure what you mean there. The point of doing this >is to build a first rate speaker. Unless you're talking trade-off, which is a >matter of preference. You may prefer small for convenience. >I'm a believer that where speakers are concerned, QRO is the way to go, >although a 7" cube isn't what I'd call all THAT large. > >Price - It would be tough to match the $69 you mention, yes. The smaller >design may do it, we'll certainly try. > >73, >Jim, N7CXI >(going where angels fear to tread) > > >Dudley Hurry wrote: >> Jim, >> >> There are just a few issues with the speaker project as far as I am >> concerned, for the Flex. . >> First is the time. >> Second the size >> Third being well shielded from RF. >> Fourth, guess sound quality verses size. >> I have been extremely happy with my Boses, mainly for the sound/size, >> they will fit in a brief case, sound very good for the size, even in >> CW, and were only $69.. And they are well shielded, and self powered.. >> Very hard to beat.. >> Now for my stereo system, I just might do something like that, a >> good set , even in a kit will be in the $350 range. >> Good luck in the project >> >> 73, >> Dudley >> >> WA5QPZ >> >> >> >> Jim Barber wrote: >>> Tim, W4TME made some excellent suggestions regarding the speaker project. >>> >>> I'll work up a high quality, medium-size design as a "case study", >>> then provide notes, design details and construction info for perhaps >>> two alternatives - one larger and one smaller, for example. That way >>> those who really want to dig into the details can, while those that >>> just want to build a great-sounding speaker for their great-sounding >>> radio can do that too. >>> >>> Suitable amplifiers will be handled as a separate section, since in >>> some cases it won't be required. >>> >>> 73 and more later, >>> --jim >>> >>> Jim Barber, N7CXI >>> >>> >>> >>> >>> >>> _______________________________________________ >>> FlexRadio Systems Mailing List >>> FlexRadio@flex-radio.biz >>> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >>> Knowledge Base: http://kc.flex-radio.com/ Homepage: >>> http://www.flex-radio.com/ >>> >> > >_______________________________________________ >FlexRadio Systems Mailing List >FlexRadio@flex-radio.biz >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ > >_______________________________________________ >FlexRadio Systems Mailing List >FlexRadio@flex-radio.biz >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/