DRIVE UNITS BY MANUFACTURER:
Morel Integra 524
2 way time aligned coaxial speaker featuring a 143mm (5") composite paper cone woofer and a 28mm (1.1") Acuflex treated soft dome tweeter. Hybrid mixed magnet system comprising Neodymium / Ferrite elements. Uniflow™ Aluminium diecast chassis for undisturbed airflow.
A culmination of various Morel innovations matched and combined resulting in a high performance single point source drive unit.
Also available: Morel Integra 424 (4") , Morel Integra 624 (6").
Resonant frequency (fs) | 62 Hz | Nominal impedance (Zn) | 4 Ω |
Mechanical Q factor (Qms) | 1.65 | DC resistance (Re) | 3..63 Ω |
Electrical Q factor (Qes) | 0.36 | Peak power handling | 500W |
Total Q factor (Qts) | 0.29 | Sensitivity (2.83V/1m) | 90.4 dB |
Equivalent volume (Vas) | 12.93 L | Chassis diameter | 143.2 mm |
Co axial
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
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)!