DRIVE UNITS BY MANUFACTURER:
MSH-115HQ
IN UK STOCK NOW
The Monacor MSH-115HQ is a development of the popular MSH-115. It features a rigid diecast chassis with sub spider ventilation, a critically damped pulp cone and gold plated terminals. This drive unit is a real giant killer with a wide usable bandwidth and a text book response between 200-5000 Hz; the linearity is excellent with no significant peaks in the response.
A full datasheet can be downloaded from this page.
Basic parameters:
Resonant frequency (fs) | 89 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 3.26 |
DC resistance (Re) | 6.3 Ω |
Electrical Q factor (Qes) | 0.66 | Max power handling | 100W |
Total Q factor (Qts) | 0.55 | Sensitivity (2.83V/1m) | 89 dB |
Equivalent volume (Vas) | 2.2 L | Chassis (across flats) | 116 mm |
Here's the full datasheet:
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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.
Excellent service. Even a personal thank you hand written on the invoice.
A quick delivery and the tweeters are perfect on my mission 753 freedom speakers. Easy to fit . Highly recommend.
I’m no expert when it comes to speakers, but after some research (and a strong recommendation from ChatGPT), I went with the SB Acoustics SB65WBAC25-4 as a reference full-range speaker in this size range.
Having now tested them, I can confidently say they’re probably the best speakers I’ve ever owned. The clarity is outstanding—every detail comes through with incredible precision. The bass is surprisingly full and punchy for a speaker this size, and they handle power impressively well. For anyone looking for a high-performance compact full-range driver, these are hard to beat.
Item as described and arrived quickly - and did the job. However, I suggested that anyone replacing speaker foam makes sure they have a very large pair of sharp dressmaking scissors as it was not easy cutting to size without producing a ragged edge (which I managed to hide short of a close inspection)!