Realistic Minimus 21 ???

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diyAudio Member
Joined 2007
Never seen these before but at $5- at Aunt Sallies who could resist, i haven't yet hooked them up but i'm putting the pix here for comments.
Anybody have any experience with these??
Nice solid box and a bit of mass in the construction and Co-aXIAL SPEAKERS THAT ARE NOT FOR CARS ARE FEWER AND FURTHER BETWEEN THESE DAYS
Sorry Stoopid caps lock on the laptop.

I'll pull them apart in a short while and check-out the cross-over and the box internals.
nominal rating is 8R and 40 watts program peak 80 watts.
 

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Box is sealed
Dimensions
H= 260mm
W = 145mm
D = 125mm
Nominally the woofers are 4inch 95mm measured at the halfway point on the rubber surrounds.
There is a little rubbing of the VC . pictures of the insides follow in a short while
 
I cannot find the manufacturer on the woofer markings. 115mm; rated 60 - 5000
nominal 14Ohms and 20 and 40 watts respectively both woofers in parallel.
Cross-over has a cored inductor 0.5( I assume that's mH ) and 2 capacitors 1 * 4uF and the other 4.7uF.4uF cap is connected between the woofer + and - terminals?? the other two components form a second order high pass on the tweeter. No padding that I can find.

The box is actually quite well made, baffle is chipboard but 25mm thick and it uses "T-Nuts" not screws and all panels are well joined and glued, only damping tho was a sliver of yellow fibreglass 5mm thick, not enough there to really do anything.

I'm putting in some good damping pad i have sitting here doing nada and going to run them for a short while and have a listen
 
The tweeters look a little like and remind me of the Foster bullet that Tandy sold under the Realistic label.
Speakers are being given a bit of a work-out now, no point in using bad gear to test so they are working off the Rotel 1070 with the crossover set to the lowest setting ( 40 Hz) Hmm!!
OK reset the XO to 80Hz and they sound a lot cleaner but a little brighter than my own speakers, I'm pushing them a little and they have no break-up yet, add a subbie or point five woofer and these may be OK, or should I just eBay them and ask a ridiculous price like $50- as a starting bid<??? They are after all extremely rare LOL.

OK another trial, dialled the XO to 120 and turned on the bass amps, had to dial the subs down by 6dB to match the little speakers and to match mine I need to turn turn the subs up 2dB so not the loudest little speakers but with the subbies in the mix they really are OK crossed that low
 
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I've never seen a "co-axial" made that way from separate drivers. I've been wondering lately, and meaning to ask, why one doesn't see coaxial speakers, as it seems natural for alignment and whatnot.

It's expensive to build one that measures well. Still, Genelec, Tannoy, and KEF seem to be making some good--more like great--ones.

I saw a raw KEF driver somewhere for fairly cheap. I want to say like $35/ea. Would be worth looking into for sure.

These speakers definitely look cool. Too bad they didn't do them here in the US.

Dan
 
Dave you can hear the notes, but they are 10db down and nothing below 80.
When I say Bass it is those notes below 80 I an referring to and yes these boxes are a little small for these drivers.

But they are OK for a driver whose Fs is 60Hz ( according to the labelling )
 
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