# Multicomp PRO MP011860 5" aluminum cone, plastic dustcap ferrite mid-woofer with copper pole cap
**URL:** https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821
**Category:** Hard Data
**Created:** [October 9, 2026, 6:39am UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821 "2026-10-09T06:39:51Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@tktran303](https://discourse.midwestaudio.club/u/tktran303)
#### Post date: [October 9, 2026, 6:39am UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821/1 "2026-10-09T06:39:51Z")
This is a plastic dust cap that moves with the cone.
No under spider venting, small pole vent.
Despite a geometric x-max of “only” 4.4mm, the spider is quite large, with 11 corrugations.
Here is the free air impedance trace:
Note the lack of rise in impedance at high frequencies, thanks to the copper pole cap.
Compare that to the Dayton’s [RS150-8](https://www.daytonaudio.com/images/resources/295-354--dayton-audio-rs150-8-6-inch-reference-paper-woofer-specifications.pdf)
Log zoomed impedance trace:
Note the blips in the impedance trace around 500Hz and 2.5KHz. We’ll come back to that later.
Far field measured in this ~~pot-plant~~ bespoke hand-made sealed spheroidal enclosure made of fibreglass 😜
Now we measure at 31cm and 20mm, in the [Hificompass.com](http://Hificompass.com) tradition, to determine the midrange and bass performance respectively.
Amplitude response 25dB/dec, monochrome; dashed line shows imprecision due the gate.
Harmonic distortion. Mic at 31cm to improve signal to noise, but SPL displayed for 1m:
N.B. Distortion graphs in REW use a fixed 1/24th octave smoothing of the fundamental.
H3 and H5 are very low and decreasing with frequency, unlike the RS150. Higher order harmonics are completely below the chart.
Another view:
Now mic is moved to the nearfield:
Conclusion:
5" mid-woofer of moderate sensitivity 86dB/2.83V (8 ohm nominal)
The good:
Aluminium frame, aluminium cone, large spider, copper pole cap, pointed dust cap
Low mid-bass (60-250Hz) distortions (\< SB15C/NBAC) (c.f. [Hificompass.com](http://Hificompass.com))
Very low midrange (250Hz - 2.5KHz) distortions (\< RS150-8) (c.f. [ZaphAudio.com](http://ZaphAudio.com))
**The bad:**
Amplitude response dip at 2.5KHz
Very slight chuffing around 500Hz, caused by air slug behind dust cap and pole vent (measurement/analysis not shown).
**The ugly:**
Datasheet’s graphs are overly smoothed
**Verdict:**
Very good mid-woofer for use between 60Hz to 2.5KHz.
Excellent value at US$38 (Oct 2026)- incredible when it was on sale last year $20; definitely a hidden gem.
Design options:
a) single- suits BR or PR, ~1/4 cu ft, tuned around 50Hz
b) in multiples e.g. arrays, W **M** T **M** W
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### Author:  [@Wolf](https://discourse.midwestaudio.club/u/Wolf)
#### Post date: [October 9, 2026, 8:15am UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821/2 "2026-10-09T08:15:38Z")
Pretty sure JR used that one…
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### Author:  [@tktran303](https://discourse.midwestaudio.club/u/tktran303)
#### Post date: [October 9, 2026, 10:11am UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821/3 "2026-10-09T10:11:04Z")
He certainly [did](https://discourse.midwestaudio.club/t/new-collaboration-build/73). A nice little 2-way design with the Wavecor TW030WA10, crossed over at 1.75K.
Using one of those 11 litre (3/8 cu ft) pre-built cabinets offered by PE back in the day, ported with a tuning of 42Hz, modded with a 1" round-over. Best use of $38 mid-woofer and $28 tweeter I’ve seen!
Hats off to @jr-mac who inspired me to take a closer look at this black anodized version of Lyeco’s [LW150AWR-8P](https://en.lyeco.com.tw/product-detail-2418505.html), brought to retail by Newark.
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### Author:  [@DrewsBrews](https://discourse.midwestaudio.club/u/DrewsBrews)
#### Post date: [October 9, 2026, 11:47am UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821/4 "2026-10-09T11:47:06Z")
Probably one of the more satisfying single posts to read for me.
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### Author:  [@raddon](https://discourse.midwestaudio.club/u/raddon)
#### Post date: [October 9, 2026, 3:05pm UTC](https://discourse.midwestaudio.club/t/multicomp-pro-mp011860-5-aluminum-cone-plastic-dustcap-ferrite-mid-woofer-with-copper-pole-cap/821/5 "2026-10-09T15:05:20Z")
Thanks for solid report with hard data!