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Z v.3 Series

The third generation Z series woofer builds upon several years of customer and SPL competition experience to create an exceptional combination of low distortion and high output at a reasonable price. The Z v.3 line carries a conservative 1500-watt RMS rating. This line features a beefy 8-layer flat-wound aluminum voice coil wound on a black aluminum former. As with our SA series these woofers also feature dual faraday rings for lower levels of distortion and higher power delivery from your amplifiers.

The Z v.3 line has been a staple in our line-up since 2011 and it quickly became our best selling "big boy" driver in it's time as our top-of-the-line model (until the launch of the X and Z v.4). It remains in our line-up for customers after a more "traditional" driver and/or a shallower mounting depth than the X and Z v.4 series. Only the 10" model is no longer available -- the 12/15/18 are still in full production.

Anyone who has been around the competition scene for long is well aware of the reputation built by the Z v.3 series woofers. They hold a slew of world championships in bass race, bass boxing, and various SPL competition formats.

Xmax = 30mm one-way by 70% BL (15/18 models)
Xmax = 25mm one-way by 70% BL (10/12 models)
RMS Power = 1500-watts


Z v.3 10 D1/D2 Z v.3 12 D1/D2 Z v.3 15 D1/D2 Z v.3 18 D1/D2
Fs: 47.2Hz /47.4Hz
Re: 1.5 /2.8ohm
Qms: 7.2 /6.9
Qes: 0.5 /0.5
Qts: 0.5 /0.4
Cms: 7.2 /6.9 uM/N
Mms: 256.4g /235.9g
BL: 14.0 /19.6N/A
Vas: 7.4L /8.0L
Sens: 83.1 /83.9 1W/1m
Le: 1.6 /3.1mH
RMS: 1500 watts
Fs: Hz /47.2Hz
Re: /1.5ohm
Qms: /7.2
Qes: /0.5
Qts: /0.5
Cms: /7.2 uM/N
Mms: g /276.3g
BL: /19.6N/A
Vas: /17.5L
Sens: /85.3 1W/1m
Le: /3.2mH
RMS: 1500 watts
Fs: 33.4Hz /33.5Hz
Re: 1.8 /3.6ohm
Qms: 7.3 /6.3
Qes: 0.5 /0.5
Qts: 0.5 /0.5
Cms: 64.2 /65.1 uM/N
Mms: 352.8g /345.0g
BL: 15.8 /21.8N/A
Vas: 57.2L /58.0L
Sens: 87.6 /87.7 1W/1m
Le: 1.9 /4.3mH
RMS: 1500 watts
Fs: 31.8Hz /31.9Hz
Re: 1.7 /4.0ohm
Qms: 5.5 /5.0
Qes: 0.5 /0.6
Qts: 0.5 /0.5
Cms: 49.5/45.8uM/N
Mms: 503.8g /541.4g
BL: 17.8N/A /25.6N/A
Vas: 104.2L /96.5L
Sens: 89.6 /88.5 1W/1m
Le: 2.0 /3.5mH
RMS: 1500 watts

Enclosure Recommendations

Z v.3 10

Z v.3 12

Z v.3 15

Z v.3 18

Sealed .5 ft^3 1 ft^3 2 ft^3 3 ft^3
Ported 1 ft^3 2 ft^3 3 ft^3 4 ft^3
Displacement 0.10 ft^3 0.12 ft^3 0.14 ft^3 0.16 ft^3
Depth 8.25" 8.75" 10" 11.25"

Outside Diameter

10.75" 12.37" 15.37" 18.25"
Cut-Out 9.25" 11" 13.87" 16.62"


Box Specs & Cut Sheet