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EV EVX-180B V’S PD 186

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Insomnia View Drop Down
Old Croc
Old Croc

Joined: 06 September 2005
Status: Offline
Points: 1716
Post Options Post Options   Thanks (0) Thanks(0)   Quote Insomnia Quote  Post ReplyReply Direct Link To This Post Topic: EV EVX-180B V’S PD 186
    Posted: 17 October 2005 at 7:52pm


Ive got Ev T18 bass cabs loaded with PD186's, ive never had any problems what so ever and think hey sound the business, Ive heard quite a few people say over the years that the EV EVX-180B would out perform the PD186 in this cab, would any of you guys agree with this? what you think as i am baffled- i have copied the spec sheets for both drivers below-take into account the Ev costs-Ł605 new and the PD 186-Ł180ish 




Heavy duty 18" cast aluminium frame with extra wide flange for increased rigidity
5” copper voice coil capable of dissipating tremendous heat build up when driven in concert conditions
110 oz. magnet
Huge copper area and breathing arrangement of the voice coil ensures superior power compression performance
Double suspension maintains pure piston action for the moving mass even when driven with the most complex programme input signals and provides additional durability against the rigours of life on the road
Designed to provide superlative high power bass and sub bass, suitable for all systems demanding the best possible low frequency response. A popular choice for horn loaded subwoofers when the PD.186’s full low end can deliver extremely high SPLs.

Ideal for three-way direct radiating systems where the powerful bass comes into its own. Well suited to use with PD.107/PD.121 and PD.C2/PD.C14 to produce direct radiating/horn loaded systems where the double suspension system allows it to thrive in the demanding touring sector.

Nominal Diameter   46cm (18")
 Power rating   700 Watts
 Frequency range   Up to 2 kHz
 Nominal Impedance   8 or 16 Ohms
 Sensitivity (1 W 1 M)   97 dB
 Resonance   25 Hz
 Enc. Vol. Recommended   100 to 350 Litres
 Displacement limit   16 mm (0.64”)
 Voice coil diameter   127 mm (5.08”)
 Voice coil   Copper
 Voice coil winding depth   25 mm (1.0”)
 Suspension (Spider)   Dual Fabric
 Magnet gap depth   9 mm (0.36”)
 Magnet material/mass   Ceramic/3.0 Kg (110 oz.)
 Magnetic assembly total mass   11.75 Kg (25.97 Lbs.)
 Flux Density   9,500 Gauss
 Cone type/material   Curvilinear Smooth Paper
 Surround   Fabric
 Dust dome   Paper
 Connectors   Spring loaded push button metal bodied
 Polarity   Positive Voltage on Red Terminal gives forward cone motion
Thiele-Small Parameters
 Fs   27 Hz
 Xmax   9 mm
 Revc   5.5 Ohms
 Vd   1.035 10-4 m3
 Qts   0.312
 No   2.05%
 Qms   7.75
 Pmx   700 Watts
 Qes   0.326
 Cms   188 µM/N
 Vas   353 Litres
 Mms   184 grams
 Sd    1150 sq cm
 BL   22.94 T/m


The EVX-180B Is A High Output 18" Woofer That Handles 600 Long Term, 1,000 Watts Program & 2,400 Watts Short Term Peak
Features A Large 4" Voice Coil & Ribbed Kevlar Fiber Composite Cone That R
esists Collapse

Extended Xmax of 6.4mm For Clean Bass Sound

Advanced HeatWick™ Design "Wicks" Heat Away From Voice Coil

Featured In EV’s Highly Acclaimed X-Array™ Systems

Nominal Basket Diameter 18"
Impedance 8 ohms
Long Term Power Handling 600 Watts
Short Term Power Handling 1,000 Watts
Short Term Peak Power Handling 2,400 Watts
Frequency Response 20Hz - 2.0khz
Sensitivity (1W/1m) 98dB SPL
Voice Coil Diameter 4" / 102 mm
Magnet Weight 18.3 lbs./ 8.3kg.


Overall Diameter 18.2" / 462.3mm
Bolt Circle Diameter 17.25" / 438 mm
Baffle Cutout Diameter 16.6" / 421.6 mm
No. Of Mounting Holes 8
Overall Depth 7.92" / 201.2 mm
Net Weight 25 lbs. / 11.3 kg.
Shipping Weight 27 lbs. / 12.3 kg.


Basket Cast Aluminum
Basket Finish Textured Black Epoxy
Voice Coil Material Edgewound Aluminum Ribbon
Voice Coil Former Polyimide
Magnet Barium Ferrite


Resonant Frequency (fs) 29 Hz
Impedance (Re) 5 ohms
Coil Inductance (Le) 1.6 mH
Electromagnetic Q (Qes) .285
Mechanical Q (Qms) 4
Total Q (Qts) .266
Max. Displacement (Xmax) 6.4 mm
Compliance Equivalent Vol. (Vas) 416.3 liters / 14.7 cu.ft.
Surface Area of Cone (Sd)m2 .122 m2
Reference Efficiency 3.4%

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tb_mike View Drop Down
Old Croc
Old Croc

Joined: 01 October 2004
Location: New Zealand
Status: Offline
Points: 2744
Post Options Post Options   Thanks (0) Thanks(0)   Quote tb_mike Quote  Post ReplyReply Direct Link To This Post Posted: 17 October 2005 at 11:14pm

The horn does the work,or in this case,the box sorta works.

The driver specs arent that different.

If it did outperform it,it could be due to a number of things

a) people enjoy distortion

b) they did sighted testing -How often does the shinier,more expensive driver not win?

c) the stated driver is infact better in some way in the large signal area,power compression etc/BL/CMS curves.



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