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DRIVE UNITS BY MANUFACTURER:
MSH-115
Monacor MSH-115, 4" hifi midrange drive unit.
IN UK STOCK NOW
Good replacement for ELAC IMF 4/200 found in various IMF models such as TLS50, IMF Compact, Super-Compact & others.
Critically damped pulp cone gives a wide usable bandwidth with a text book response between 400-5000 Hz - excellent linearity, no significant peaks in the response.
The flat profile front chassis allows hassle free flush mounting - no need for a rebate or router.
This versatile driver can replace and upgrade a huge number of midrange units and offers a level of performance that is exceptional at this price.
A full datasheet can be downloaded from this page.
Basic parameters:
Resonant frequency (fs) | 85 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 1.98 | DC resistance (Re) | 6.3 Ω |
Electrical Q factor (Qes) | 0.55 | Max power handling | 120W |
Total Q factor (Qts) | 0.43 | Sensitivity (2.83V/1m) | 89 dB |
Equivalent volume (Vas) | 4 L | Chassis (across flats) | 115 mm |
Here's the full datasheet:
MSH115
These drivers have a smooth, natural sound with good resolution & dynamics for the price. Their level frequency response makes them easy to integrate with other drive units, and the low profile compact steel chassis allows them to fit into tight spaces. A great little replacement midrange driver, if the dimensions meet your requirements.
Thanks for the review Simon !
Will & Caroline
I bought a pair to replace aged mids in my IMF Studio Monitors...definitely an upgrade!
Thanks for the review Ross !
Will & Caroline
I replaced my midrange drivers in my IMF Studio TLS 50 Mk1 speakers that are 50 years old at present with these drivers. I am the original owner of these and I have to say after installing these drivers in both of the speakers I just love the results. I couldn’t be happier. They have brought my speakers back to life!
Thanks for the review Frank !
Will & Caroline
Excellent service , product and price A++
Thanks for the review Christiaan !
Will & Caroline
A while ago I revamped a pair of IMF Super Compact 2. The surrounds of the original ELAC mids were cracked and hardened (due to aging of the foam) which is typical for these old mids. I decided to look for a replacement and bought two of these Monacors. In my opinion the Monacor has a more detailled sound but its sensitivity is higher and you here it when it's not compensated for. Simply said; 'the mids are to loud'. It's specified at 89 dB/1W/1m and the average sensitivity of the old ELAC must be about 86 dB/1W/1m. So this issue had to be adressed. Measuring a speaker with the ELAC replaced by the Monacor using a standardized set-up (sw and pro measurement microphone) showed a higher average sensitivity of about 3,5 dB compared to the bass and high frequencies. So an L-pad has been used to attenuate the mids 'loudness'. Now this has been done, the result is great.
Kind regards,
Martin
Thankyou for your review !
Will & Caroline
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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!
Excellent service from Willys-Hifi. Caroline was very helpful and patient when answering my queries. Please be aware that some soldering is required when connecting the tweeters. Something I haven't done since I was at school over 40 years ago! They do sound good though, listening to Smoke on the Water as I write , wow 😆
thx you so much for helping me geting the twiters for my speakers i hope all good for your bisnis in the futur and that it will never close i recemed you to the norwigen hifikluben its a store in norway for parts and hifi so you brobely will get order from ther now thx agine for the parts btw you need to put a bit of fome on the back side of the speakers for it to mount in the b&w cmd1 se to make them fit i will leave som pictur of the istalsjon
I always knew that Linn should never have stopped using Hiquphon tweeters. What I don't know is why it's taken me thirty years to fit a pair in my old Kabers. It's often hard to describe sonic character ....but to pinch Linn's old line from back in the day ...they're Simply Better.(even straight out the box with soldering iron still warm)
As my Kabers are passive,I had been a little concerned that the the 8 ohm nominal impedence of the OW1 would mess with the crossover slope. I needn't have worried....if its shifted the crossover point its much for the better.
Warm thanks also to Will and Caroline for a service in keeping with the outstanding quality of the Hiquphon product.
Alan
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.