DRIVE UNITS BY MANUFACTURER:
SPM-165/8
IN UK STOCK NOW
A good replacement for the 73-LF58W as found in Mission 732, 733, 733i, 734, 735 + many other models.
This 6.5 inch unit features a damped pulp cone, a powerful 80mm ferrite magnet system and a rugged steel chassis. The frequency response is smooth with good midrange control and extension. An ideal replacement unit for many speakers.
| Resonant frequency (fs) | 49 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 2.70 | DC resistance (Re) | 6.5 Ω |
| Electrical Q factor (Qes) | 0.67 | Max power handling | 150W |
| Total Q factor (Qts) | 0.55 | Sensitivity (2.83V/1m) | 88 dB |
| Equivalent volume (Vas) | 33L | Chassis (pincushion style) |
159 mm |
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!
Thanks for the review !
Will & Caroline
Been looking for a supplier of replacement drivers for some years.
Willy's HiFi had just the parts at a good price and they arrived in a couple of days.
Thanks for the review Graham !
Will & Caroline
Arrived within 24hrs (Essex to S.Yorks) easy enough to fit, just had to remove the rubber padding on the outer facing edges to fit them within the plastic screwdown original mission covers. Sound good so far! Cheers
Thanks for the review John !
Will & Caroline
4 units bought to upgrade my old cracked Mission 734 speakers.
Arrived a few days later well packaged individually and collectively.
Easily replaced, nice fit, straightforward.
Can crank up to 11 again, if my Daughter allows :-)
Thanks.
Thanks for the review Brian !
Will & Caroline
My Mission 733 speakers are alive again. And how! Willys thank you!
So happy!
jack
Thanks for the review Jack !
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!
