DRIVE UNITS BY MANUFACTURER:
D26NC56-06
UK STOCK ITEM
ATC SCM12, SCM7a (early), SCM35, SCM25a, Hafler TRM6, Royd RR2, Royd RR3, Miller & Kreisel (various models). This is the long awaited replacement for the highly respected D26NC15-06 and D26NC55-06.
Perfect replacement, no modifications required. A downloadable datasheet is available from this page.
We recommend changing in pairs to maintain channel balance as older versions often have reduced output due to ferrofluid thickening.
| Resonant frequency (fs) | 1625 Hz | Nominal impedance (Zn) | 6 Ω |
| Effective diaphragm diameter | 26 mm | DC resistance (Re) | 4.68 Ω |
| Ferrofluid ? Y/N | Yes | RMS power handling | 100 W |
| Recommended crossover | 2.5 kHz 18dB | Faceplate diameter (cropped profile) | 70 mm |
| Sensitivity (2.83V/1m) | 89.3 dB | Cutout hole diameter | 45 mm |
Peerless by Tymphany
After 20 years my Monopulse 42a's seemed to be lacking sparkle. Based on photos of my old tweeters Will identified them as Vifa D26NC's and advised these were know to suffer from age related top end drop, but luckily he stocked the updated version. Ordered and received within 2 days and quickly fitted (mounting holes required enlarging a little to accommodate the new heatsink) they sound great! It wasn't my hearing after all!
Thank you for great advice and fast service!
Cheers Jon
Thanks for the review Jon !
Will & Caroline
Great Service, superbly packed and delivered within 48 hours as promised. I have not installed my tweeter yey.
Thanks for the review Nahil !
Will & Caroline
Ordered two of these tweeters on Friday afternoon NZ time, amazingly they had arrived in Auckland the following Tuesday morning, arrived in my home town of Christchurch couple of days later and were promptly installed. Seem to be doing and sound as they should, thank you for your service!
Thanks for the review Rowan, glad they arrived safely.
If that doesn't get the girls dancing nothing will !
Will & Caroline
Fast delivery
Thanks for the review Sunny !
Will & Caroline
The tweeters arrived promptly and packaged really well. For size and fitting they are a perfect replacement for the 55-06 units. As regard to SQ, at the moment they sound a little bright and forward; I’m hoping this will reduce a little as they run in. Maybe my ear is just used to the old OEM tweeters that were obviously quite a few db down after 20 years. Very much looking forward to hearing how they settle over the coming weeks. Thank you.
Thanks for the review Darren !
Will & Caroline
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!
