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Boomboxery Boombox!?


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#31 Barb Bush

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Posted 20 April 2017 - 03:32 PM

Those are amazing.  I like the EQ and LEDs on the first video.  Awesome.

 

Kind of hard to see the 2nd one, but the chrome rings around the speakers remind me of my Sanyo M9990 I had back in the day.

 

On Red and Denim, is that a horn loaded box?  Can't really tell, but it probably hits pretty good if it is. 

 

Have any of you run these against the new modern boomboxes for comparison [diamondboxx, aiwa]?



#32 hardmen

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Posted 20 April 2017 - 04:23 PM

Love the LED meter on the first one. Is it straight from a Lasonic?



Yes, from modern ones.

That pic below show a Gig that I working on.
12" woofers (fail on tests, couldn't handle bass, because they are for midrange frequencies),
3" tweeters and TDA7492 Amp.
That gig are mounted on a open baffle scheme, just for tests...

I will make a video.

Attached File  20170420_193608.jpg   56.24K   3 downloads

Cheers.

#33 hardmen

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Posted 20 April 2017 - 04:57 PM

Those are amazing. I like the EQ and LEDs on the first video. Awesome.

Kind of hard to see the 2nd one, but the chrome rings around the speakers remind me of my Sanyo M9990 I had back in the day.

On Red and Denim, is that a horn loaded box? Can't really tell, but it probably hits pretty good if it is.

Have any of you run these against the new modern boomboxes for comparison [diamondboxx, aiwa]?

The second one could see finished in that pic below (right n the custom one with four woofers, that I made as well).
Attached File  FB_IMG_1490042543829.jpg   115.37K   2 downloads

The Red and Denim have vintage tweeters and could cover mid frequencies, used in PA speakers, made by a Brazilian brand name Selenium.

I have the Aiwa Exos 9 and on my tests, they go more louder, but Aiwa sounds better (no distortion) in max volume (awesome project) and with more thumping bass.

The ONLY one of mine DIY that follow Aiwa on almost same no distortion, it's the Pausonic.

Cheers.

#34 hardmen

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Posted 20 April 2017 - 05:20 PM



#35 Barb Bush

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Posted 20 April 2017 - 09:32 PM

 

Those are amazing. I like the EQ and LEDs on the first video. Awesome.

Kind of hard to see the 2nd one, but the chrome rings around the speakers remind me of my Sanyo M9990 I had back in the day.

On Red and Denim, is that a horn loaded box? Can't really tell, but it probably hits pretty good if it is.

Have any of you run these against the new modern boomboxes for comparison [diamondboxx, aiwa]?

The second one could see finished in that pic below (right n the custom one with four woofers, that I made as well).
attachicon.gifFB_IMG_1490042543829.jpg

The Red and Denim have vintage tweeters and could cover mid frequencies, used in PA speakers, made by a Brazilian brand name Selenium.

I have the Aiwa Exos 9 and on my tests, they go more louder, but Aiwa sounds better (no distortion) in max volume (awesome project) and with more thumping bass.

The ONLY one of mine DIY that follow Aiwa on almost same no distortion, it's the Pausonic.

Cheers.

 

 

Brilliant!  You guys are definitely creative when it comes to these beauties.   



#36 jimmyjimmy19702010

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Posted 20 April 2017 - 11:19 PM

Love the LED meter on the first one. Is it straight from a Lasonic?


Yes, from modern ones.
That pic below show a Gig that I working on.
12" woofers (fail on tests, couldn't handle bass, because they are for midrange frequencies),
3" tweeters and TDA7492 Amp.
That gig are mounted on a open baffle scheme, just for tests...
I will make a video.
attachicon.gif20170420_193608.jpg
Cheers.
Running those 12 inch drivers in 'free air' will cause the cones to move excessively. If you tested them in a sealed or ported cabinet of a suitable size, they should sound really strong.

I've tried a couple of the TDA7492 based amps - they both worked but I wasn't happy with the sound quality compared with the Lepai LP-2020+ T class amp.

#37 hardmen

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Posted 21 April 2017 - 02:49 AM

Love the LED meter on the first one. Is it straight from a Lasonic?


Yes, from modern ones.
That pic below show a Gig that I working on.
12" woofers (fail on tests, couldn't handle bass, because they are for midrange frequencies),
3" tweeters and TDA7492 Amp.
That gig are mounted on a open baffle scheme, just for tests...
I will make a video.attachicon.gif20170420_193608.jpg
Cheers.
Running those 12 inch drivers in 'free air' will cause the cones to move excessively. If you tested them in a sealed or ported cabinet of a suitable size, they should sound really strong.
I've tried a couple of the TDA7492 based amps - they both worked but I wasn't happy with the sound quality compared with the Lepai LP-2020+ T class amp.

The Pausonic uses a TA-2020 amp and you're right about superior soune quallity they delivers.
But TA-2020 based amps wasn't easy to find here on Brazil unfortunately... ...and when they are avaliable, are expensives.

Cheers.

#38 jimmyjimmy19702010

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Posted 28 July 2017 - 02:53 AM

Its a pity this project hasn't progressed beyond the planning stages. The more I think about this, the more I'm thinking there is no way around it - to make this thing worthwhile, we have to recreate the 'look' of a vintage Boombox (at least for the front panel).

Like the DJTech box, we need an injection moulded ABS plastic front panel that is ridgedly attached to the main cabinet. The speakers, LED lights, switches etc need to attach to this front panel to make it look right.

A top mounted flip up/down vintage Boombox style handle with chrome metal ends and twin antennas are also essential
IMHO. We need the front of this unit to be styled exactly like a large 1 piece Boombox from 1980. It has to look legit or it won't work.

We could scan an existing front box panel from an M90, C100 etc to speed up the CAD drawing process.

Anyone know of a place that will do low volume (less than 100) work?

The rest of the box can just be a rectangle like the DJTech.

This will be a no profit project - every cent we pay for this box is for parts and materials only - no huge mark ups - 100% bang for buck.

Imagine a Conion C100F with 10 inch drivers!!! :rock:

Guys, no one else is going to build a legit looking vintage box. Would you guys like a vintage looking box that really performs?

#39 JVC Floyd

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Posted 28 July 2017 - 04:42 AM

Whatever is eventually built I just hope its not a carbon copy of some other box, now combining the best features of some of the best looking boxes into a single design is the way to go.
Whatever happens I think it should be designed from the outside in ,meaning make it attractive then make it function, its harder that way I know but wtf can you do.

#40 jimmyjimmy19702010

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Posted 28 July 2017 - 05:03 AM

Whatever is eventually built I just hope its not a carbon copy of some other box, now combining the best features of some of the best looking boxes into a single design is the way to go.
Whatever happens I think it should be designed from the outside in ,meaning make it attractive then make it function, its harder that way I know but wtf can you do.

You're right Floyd. If we were to scan an existing box front panel, any changes could be made to make it look unique - like a 'future' model developed back in the day that was never released due to the decline era kicking in leaving it high and dry. :-)

#41 Reli

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Posted 28 July 2017 - 05:49 AM

Whatever is eventually built I just hope its not a carbon copy of some other box, now combining the best features of some of the best looking boxes into a single design is the way to go.

 

Yep, for example, the speaker trim on the Conion TC-999 is some of the best I've ever seen, because of how nice and thick they are, with the fake rivets and everything.

 

And the DJ Tech has some of the best looking bass ports.  

 

As for a tuner dial, that would be tougher to make it look right. But not impossible. I realize it couldn't be a mechanical tuner, but that's OK. Maybe install 3-4 digital readouts (VU, battery, tuner, track).  I've seen digital VU's styled like a round analog meter.  Then for a tuner glass, you could install a long sheet of semi-frosted acrylic over those digital readouts.  This would carry the "glow" all the way across the dial.  And then laser-etch a border around the edges of the acrylic to catch the light and emphasize the classic rectangular shape of it. Finally, etch 1 or 2 words into it, like "Boomboxery" or "Hyper Bass" or maybe the number of watts.



#42 JVC Floyd

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Posted 28 July 2017 - 06:04 AM

I would love to see a stereo version of the rc 550.
I think that design is perfect and it won't be a carbon copy because there's none in existence.

#43 Reli

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Posted 28 July 2017 - 06:12 AM

True.  Those speaker trims are nice too.



#44 jimmyjimmy19702010

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Posted 28 July 2017 - 06:52 AM

Whatever is eventually built I just hope its not a carbon copy of some other box, now combining the best features of some of the best looking boxes into a single design is the way to go.

 
Yep, for example, the speaker trim on the Conion TC-999 is some of the best I've ever seen, because of how nice and thick they are, with the fake rivets and everything.
 
And the DJ Tech has some of the best looking bass ports.  
 
As for a tuner dial, that would be tougher to make it look right. But not impossible. I realize it couldn't be a mechanical tuner, but that's OK. Maybe install 3-4 digital readouts (VU, battery, tuner, track).  I've seen digital VU's styled like a round analog meter.  Then for a tuner glass, you could install a long sheet of semi-frosted acrylic over those digital readouts.  This would carry the "glow" all the way across the dial.  And then laser-etch a border around the edges of the acrylic to catch the light and emphasize the classic rectangular shape of it. Finally, etch 1 or 2 words into it, like "Boomboxery" or "Hyper Bass" or maybe the number of watts.
Nice concepts. I especially like the idea of housing those readouts behind the tuner glass!

#45 JVC Floyd

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Posted 28 July 2017 - 07:02 AM

Yeah a stereo el diabolo would be bad ass . imagination the swivel MIC's on each side would be pure evil