Urgent Help - Munny FR Drivers???

[guangui]

Guys,

My 10 yr old son decided that for his scientific fair project he wants to build a pair of 7" Munny Doll speakers, as per PE instructions. For this project PE uses the Dayton 2-1/2" FR ND65-8 (4 Ohm version also avail.). Apparently it fits perfectly, and the specs on this little driver are too good to be true, 80Hz - 20kHz, though Sensitivity is 78.3 dB; most of the other drivers in this category are around 110+ Hz to 18+ kHz, and 82+ dB. The other thing is that the baffle cutout for the Dayton's is 2.05", while for others is closer to 3", flange dims. is also small for the Dayton, and I don't know if the Munny Doll head will hold a larger driver.

The drivers are $19.30 ea. (they better be good). I was thinking that for around $40.00 I can buy other less expensive 2-1/2" drivers, and buy a 6" Aura Woofer (PE Buyout), and for around $30.00 worth of drivers, have the doll PC speakers, and a "subwoofer" (maybe passive), powered by the same Dayton DTA-1 T-Amp that will be used to power the speakers.

Any recommendations, as far as driver goes? This is a project that will be done by a 10 yr old, so needs to be simple, but at the same time exciting for him. Your input is appreciated.

[guangui]

No takers...Not even to recommend drivers

[xrk971]

Take a look at vifa tc7fd 2.5 in driver. Or get a logitech s120 pc speaker and strip out the two visaton lookalike frs5 drivers.

[planet10]

That Dayton driver is a smaller version of the Aura NS3. I'd get the 3" version on sale at Madisound.

The Madisound Speaker Store

(also available in silver)



They certainly are the bass kings in theur size, the price paid is low efficiency

dave

[planet10]

Originally Posted by xrk971

.... logitech s120 pc speaker....

Most (if not all) are Tangband OEM units.

dave

[xrk971]

Originally Posted by planet10

That Dayton driver is a smaller version of the Aura NS3. I'd get the 3" version on sale at Madisound.

The Madisound Speaker Store

(also available in silver)



They certainly are the bass kings in theur size, the price paid is low efficiency

dave

I have looked at this Munny doll before and the problem is the head of the doll won't accommodate the 3 in ns3 which is a way better deal. The s120 driver looks like no TB I have seen with the two tab mounting holes just like frs5. I agree that logitech uses TB on larger speakers in the 3 in size.

[planet10]

There is always the $2.50 Aura buy-out at Madisound. Same basket as the Dayton.

dave

[guangui]

Originally Posted by xrk971

I have looked at this Munny doll before and the problem is the head of the doll won't accommodate the 3 in ns3 which is a way better deal. The s120 driver looks like no TB I have seen with the two tab mounting holes just like frs5. I agree that logitech uses TB on larger speakers in the 3 in size.

Originally Posted by planet10

There is always the $2.50 Aura buy-out at Madisound. Same basket as the Dayton.

dave

Thanks for your help...It looks like I will keep the Dayton, the fact that they advertise 80Hz - 20kHz range is simply amazing for a 2.5", bass king in their size, just like the suggested Aura is in 3". When you look at them they are designed like a subwoofer driver. Yes, efficiency is low in general, but don't want a 10 yr old blasting music around the house, so it is not that bad.

[xrk971]

Let us know how the Munny doll speaker works out and post photos. Have you considered a BR ported Munny doll? Fill the doll with water and measure the volume (enlarge the neck and use the body too (possibly). Run a BR program and calculate the vent. Where to put the vent? A vent shaped like a big fat cigarette is not appropriate for a 10 yr old Maybe a top hat?

[guangui]

Originally Posted by xrk971

Let us know how the Munny doll speaker works out and post photos. Have you considered a BR ported Munny doll? Fill the doll with water and measure the volume (enlarge the neck and use the body too (possibly). Run a BR program and calculate the vent. Where to put the vent? A vent shaped like a big fat cigarette is not appropriate for a 10 yr old Maybe a top hat?

Great idea! I don't smoke myself, though every other month or so I smoke a couple of good cigars, so modeling a cigar/cigarette as a vent wouldn't have occurred to me. Back in my college years the vent would have been...Let's leave it there....