DRIVE UNITS BY MANUFACTURER:
D3004/664000
Categories: 0.75 - 2" (19-50mm) Dome Tweeters Scanspeak Tweeters

DISCONTINUED BY MANUFACTURER - NO LONGER AVAILABLE.
EXCELLENT ALTERNATIVE HERE: SB29BAC-C000-4
The pure Beryllium diaphragm and large roll surround provide a flat frequency response to an astonishing 40KHz with outstanding off-axis dispersion, low distortion and dynamic resolution.
Featuring the unique Scanspeak AirCirc ring Magnet System comprising 6 high power Neodymium magnets mounted within an air flow optimised rear chamber, this esoteric tweeter does not suffer from any of reflections and resonances that compromise the performance of traditional motors systems.
Machined from the finest materials. True high end transparency with effortless transients; the state of the art.
| Resonant frequency (fs) | 500 Hz | Nominal impedance (Zn) | 4 Ω |
| Effective diaphragm diameter | 26 mm | DC resistance (Re) | 3 Ω |
| Ferrofluid ? Y/N | No | RMS power handling | 90W |
| Recommended crossover | 2.5 kHz 12dB | Faceplate diameter | 104mm |
| Sensitivity (2.83V/1m) | 91.5 dB | Cutout hole diameter | 78 mm |
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
I tried this uprated capacitor through sheer curiosity and am pleasantly surprised with the results. So far, and not too many hours in, it’s giving a slightly smoother edge to the top end and has solved an issue I had regarding some hardness to the sound. I’m impressed enough that I’ll look to replace the mid range caps in the future.
I came across some info that after many years these old B&W P4's tweeters degrade. As I grew older, (with reduced hearing of course), I never noticed this gradually deterioration over the years. So I bought the replacement tweeters from Willy's which was picked up just a few days later in Norway. They were mounted in 30 minutes,.. and what a change! My HiFi sounds as a new set. Thanks!
New Foam covers supplies by WHF have completely changed the appearance- they look brand new! Great quality foam, very reasonably priced and quick delivery. Delighted with they now look and sound - will hang on to them forever now.
Excellent upgrade, works perfectly with the speakers it's just soldier and play, they takeaway the over intensity of the original tweeters.
I've had my Mission 734s for about 30 years and for the last five or so the bass units have been falling to pieces. I was about to take the speakers to the tip, but didn't have the heart knowing how capable these used to be. I did a little internet research and these Monacor replacements appeared to do the job. Next day delivery from Willys was impressive, as was the killer sound once the replacements were fitted (which was a simple job). I'd forgotten how these speakers make the windows rattle. Very happy customer!
