DRIVE UNITS BY MANUFACTURER:
Morel CAW 638 Woofer
UK STOCK ITEM
The Morel CAW 638 is a 6 inch 8 ohm Woofer from the Classic Advanced range featuring the Morel Uniflow aluminium diecast chassis, high flux double ferrite magnet system, 3 inch Hexatech voice coil and a shallow DPC (damped composite polymer) cone. The CAW 638 is a modern, much improved version of the classic MW 166.
The CAW range replace the legendary MW range.
Decoding Morel type numbers: CAW = Classic Advanced Woofer; 638= 6 inch woofer, 3 inch voicecoil, 8 ohm impedance.
Also available in 4 Ohms : CAW 634
Resonant frequency (fs) | 43 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 2.2 | DC resistance (Re) | 6.4 Ω |
Electrical Q factor (Qes) | 0.58 | RMS power handling | 150W |
Total Q factor (Qts) | 0.46 | Sensitivity (2.83V/1m) | 86 dB |
Equivalent volume (Vas) | 15.7 L | Chassis diameter | 160 mm |
CAW638
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Excellent customer service
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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)!