Z SERIES (Discontinued)

ZV4-REV1-THUMB

The Z v.4 series is the second driver in the Sundown woofer line-up to offer our “ultra high excursion” suspension and frame designs. The 10, 12, and 15″ models feature our custom tooled and patented frames (US Patent Numbers D691596, D691597, D691598) and the 18″ model uses the tried and true 18″ 6-spoke with a custom tooled adapter to allow for a full 10″ diameter spider. We mate these new platforms to a triple stacked 220mm diameter motor structure featuring a hyper-extended pole and extreme clearances (allowing over 4″ p-p travel before mechanical bottom). This motor powers a 3″ diameter 8-layer flat wound Aluminum coil wound on a thick, black aluminum former to incredible levels of excursion.

As with the X series; Z v.4 series was designed from the ground-up to become the new standard in the low-frequency / small ported box subwoofer category. They will work in anything from our traditional very small enclosures (like the SA and Z v.3 series) up to about 50% larger than those suggestions for the maximum amount of low-frequency extension.

The Z v.4 series, likes it’s little brother the X series, is really a different kind of woofer due to it’s incredibly linear suspension. They are designed for the LOWEST level of bass extension possible while maintaining low levels of distortion. They are NOT a peaky SPL woofer — these are true low distortion, high excursion bass transducers!

Due to the extremely low level of suspension induced distortion the typical “punchy” upper-bass peak in the 40s-60s Hz range that occurs with traditional woofers when pushed to high excursion does not occur. This “punch” is caused by a tightening of the suspension over stroke leading to increased FS and Qts figures — in other words it is distortion. In simpler terms — the Z v.4 series frequency response does not change much over it’s full excursion range provided a consistant and flat response at any volume level. Once you experience and re-listen to all of your favorite music on a low distortion driver you are unlikely to go back!

Compared to the X series the Z v.4 carries a higher power rating, has a much larger motor, addes a magnet ID faraday ring (both feature a pole cap faraday ring), and features a stiffer suspension. You can think of the Z v.4 as a bigger version of the X series with even more output and power handling potential. Both drivers have a very similar sound.

VERSION 2

T/S SPECS Z10D2 v2
RE (Ohms) 3.93
FS (Hz) 44.8
VAS (L) 8.58
Qes 0.37
Qms 8.59
Qts 0.35
Le (mH) 3.65
BL (NA) 27.14
Mms (Grams) 245
Cms (uM/N) 51.36
Sens (1w/1m) 85.04
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 0.5 cu ft
Ported Enclosure 1.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area
Displacement 0.10 cu ft
Depth 8.25″
Outside Diameter 10.75″
Cut-Out 9.25″
T/S SPECS Z12D2 v2
RE (Ohms) 3.97
FS (Hz) 36.13
VAS (L) 21.0
Qes 0.36
Qms 8.58
Qts 0.35
Le (mH) 3.86
BL (NA) 27.13
Mms (Grams) 300.8
Cms (uM/N) 64.5
Sens (1w/1m) 86.14
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 1.0 cu ft
Ported Enclosure 2.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area
Displacement 0.12 cu ft
Depth 9.875″
Outside Diameter 12.625″
Cut-Out 11.125″
T/S SPECS Z15D2 v2
RE (Ohms) 3.94
FS (Hz) 34.94
VAS (L) 57.18
Qes 0.36
Qms 8.72
Qts 0.35
Le (mH) 4.00
BL (NA) 27.42
Mms (Grams) 319
Cms (uM/N) 64.95
Sens (1w/1m) 90.06
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 2.0 cu ft
Ported Enclosure 3.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area
Displacement 0.14 cu ft
Depth 10.25″
Outside Diameter 15.625″
Cut-Out 14.125″
T/S SPECS Z18D2 v2
RE (Ohms) 4.08
FS (Hz) 28.42
VAS (L) 139
Qes 0.41
Qms 9.14
Qts 0.39
Le (mH) 3.89
BL (NA) 27.80
Mms (Grams) 438
Cms (uM/N) 71.56
Sens (1w/1m) 90.73
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 3.0 cu ft
Ported Enclosure 4.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area
Displacement 0.16 cu ft
Depth 11.25″
Outside Diameter 18.375″
Cut-Out 16.75″

VERSION 3

T/S SPECS Z10D1 v3 Z10D2 v3
RE (Ohms) 1.5 2.8
FS (Hz) 47.2 47.4
VAS (L) 7.4 8.0
Qes 0.5 0.5
Qms 7.2 6.9
Qts 0.5 0.4
Le (mH) 1.6 3.1
BL (NA) 14.0 19.6
Mms (Grams) 256.4 235.9
Cms (uM/N) 7.2 6.9
Sens (1w/1m) 83.1 83.9
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 0.5 cu ft
Ported Enclosure 1.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area 16 sq in
Displacement 0.21 cu ft
Depth 8.25″
Outside Diameter 10.5″
Cut-Out 9.25″
T/S SPECS Z12D1 v3 Z12D2 v3
RE (Ohms) 1.5 2.8
FS (Hz) 47.2 47.2
VAS (L) 17.5
Qes 0.5
Qms 7.2
Qts 0.5
Le (mH) 3.2
BL (NA) 19.6
Mms (Grams) 276.3
Cms (uM/N) 7.2
Sens (1w/1m) 85.3
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 1.0 cu ft
Ported Enclosure 2.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area 32 sq in
Displacement 0.21 cu ft
Depth 8.75″
Outside Diameter 12.625″
Cut-Out 11.125″
T/S SPECS Z15D1 v3 Z15D2 v3
RE (Ohms) 1.8 3.6
FS (Hz) 33.4 33.5
VAS (L) 57.2 58.0
Qes 0.5 0.5
Qms 7.3 6.3
Qts 0.5 0.5
Le (mH) 1.9 4.3
BL (NA) 15.8 21.8
Mms (Grams) 352.8 345.0
Cms (uM/N) 64.2 65.1
Sens (1w/1m) 87.6 87.7
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 2.0 cu ft
Ported Enclosure 3.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area 48 sq in
Displacement 0.24 cu ft
Depth 10.00″
Outside Diameter 15.625″
Cut-Out 14.125″
T/S SPECS Z18D1 v3 Z18D2 v3
RE (Ohms) 1.7 4.0
FS (Hz) 31.8 31.9
VAS (L) 104.2 96.5
Qes 0.5 0.5
Qms 5.5 5.0
Qts 0.5 0.5
Le (mH) 2.0 3.5
BL (NA) 17.8 17.8
Mms (Grams) 503.8 541.4
Cms (uM/N) 49.5 45.8
Sens (1w/1m) 89.6 88.5
ENCLOSURE SPECIFICATIONS
Sealed Enclosure 3.0 cu ft
Ported Enclosure 4.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area 64 sq in
Displacement 0.25 cu ft
Depth 11.25″
Outside Diameter 18.425″
Cut-Out 16.692

VERSION 4 REVISION 1

T/S SPECS Z10D1 v4 Rev 1 Z10D2 v4 Rev 1
RE (Ohms) 1.7 3.6
FS (Hz) 36.4 35.9
VAS (L) 12.4 11.9
Qes 0.41 0.49
Qms 4.58 4.43
Qts 0.37 0.44
Le (mH) 1.14 2.32
BL (NA) 17.3 23.4
Mms (Grams) 311.8 333.3
Cms (uM/N) 0.06 0.06
Sens (1w/1m) 83.5 82.3
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 1.50 cu ft
Recommended Tuning 32
Recommended Port Area 24 sq in
Displacement 0.22 cu ft
Depth 10.01″
Outside Diameter 11.65″
Cut-Out 10.01″
T/S SPECS Z12D1 v4 Rev 1 Z12D2 v4 Rev 1
RE (Ohms) 1.7 3.6
FS (Hz) 31.4 33.0
VAS (L) 24.2 21.4
Qes 0.41 0.45
Qms 5.65 5.74
Qts 0.39 0.42
Le (mH) 1.12 2.56
BL (NA) 16.3 23.6
Mms (Grams) 330.4 339.4
Cms (uM/N) 0.08 0.07
Sens (1w/1m) 84.4 84.1
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 2.50 cu ft
Recommended Tuning 32
Recommended Port Area 40 sq in
Displacement 0.23 cu ft
Depth 10.81″
Outside Diameter 12.67″
Cut-Out 11.09″
T/S SPECS Z15D1 v4 Rev 1 Z15D2 v4 Rev 1
RE (Ohms) 1.7 3.6
FS (Hz) 24.8 27.5
VAS (L) 78.6 67.7
Qes 0.40 0.49
Qms 5.78 5.45
Qts 0.38 0.45
Le (mH) 1.19 2.20
BL (NA) 16.6 22.4
Mms (Grams) 418.0 394.1
Cms (uM/N) 0.10 0.08
Sens (1w/1m) 86.6 86.4
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 4.25 cu ft
Recommended Tuning 32
Recommended Port Area 68 sq in
Displacement 0.25 cu ft
Depth 11.99″
Outside Diameter 15.51″
Cut-Out 13.83″
T/S SPECS Z18D1 v4 Rev 1 Z18D2 v4 Rev 1
RE (Ohms) 1.7 3.6
FS (Hz) 26.1 27.4
VAS (L) 159.9 136.2
Qes 0.49 0.60
Qms 6.29 5.39
Qts 0.46 0.54
Le (mH) 1.16 2.29
BL (NA) 15.8 22.1
Mms (Grams) 442.8 469.7
Cms (uM/N) 0.08 0.07
Sens (1w/1m) 89.4 88.6
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 7.0 cu ft
Recommended Tuning 32Hz
Recommended Port Area 112 sq in
Displacement 0.26 cu ft
Depth 11.39″
Outside Diameter 18.42″
Cut-Out 16.69″

VERSION 4 REVISION 2

T/S SPECS Z10D1 v4 Rev 2 Z10D2 v4 Rev 2
RE (Ohms) 1.7 3.6
FS (Hz) 36.4 35.9
VAS (L) 12.4 11.9
Qes 0.41 0.49
Qms 4.58 4.43
Qts 0.37 0.44
Le (mH) 1.14 2.32
BL (NA) 17.3 23.4
Mms (Grams) 311.8 333.3
Cms (uM/N) 0.06 0.06
Sens (1w/1m) 83.5 82.3
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 1.50 cu ft
Recommended Tuning 32
Recommended Port Area 24 sq in
Displacement 0.22 cu ft
Depth 10.01″
Outside Diameter 11.65″
Cut-Out 10.01″
T/S SPECS Z12D1 v4 Rev 2 Z12D2 v4 Rev 2
RE (Ohms) 1.7 3.6
FS (Hz) 31.4 33.0
VAS (L) 24.2 21.4
Qes 0.41 0.45
Qms 5.65 5.74
Qts 0.39 0.42
Le (mH) 1.12 2.56
BL (NA) 16.3 23.6
Mms (Grams) 330.4 339.4
Cms (uM/N) 0.08 0.07
Sens (1w/1m) 84.4 84.1
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 2.50 cu ft
Recommended Tuning 32
Recommended Port Area 40 sq in
Displacement 0.23 cu ft
Depth 10.81″
Outside Diameter 12.67″
Cut-Out 11.09″
T/S SPECS Z15D1 v4 Rev 2 Z15D2 v4 Rev 2
RE (Ohms) 1.7 3.6
FS (Hz) 24.8 27.5
VAS (L) 78.6 67.7
Qes 0.40 0.49
Qms 5.78 5.45
Qts 0.38 0.45
Le (mH) 1.19 2.20
BL (NA) 16.6 22.4
Mms (Grams) 418.0 394.0
Cms (uM/N) 0.10 0.08
Sens (1w/1m) 86.6 86.4
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 4.25 cu ft
Recommended Tuning 32
Recommended Port Area 68 sq in
Displacement 0.25 cu ft
Depth 11.99″
Outside Diameter 15.51″
Cut-Out 13.83″
T/S SPECS Z18D1 v4 Rev 2 Z18D2 v4 Rev 2
RE (Ohms) 1.7 3.6
FS (Hz) 26.1 27.4
VAS (L) 159.9 136.2
Qes 0.49 0.60
Qms 6.29 5.39
Qts 0.46 0.54
Le (mH) 1.16 2.29
BL (NA) 15.8 22.1
Mms (Grams) 442.8 469.7
Cms (uM/N) 0.08 0.07
Sens (1w/1m) 89.4 88.6
ENCLOSURE SPECIFICATIONS
Sealed Enclosure Not Recommended
Ported Enclosure 7.0 cu ft
Recommended Tuning 32
Recommended Port Area 112 sq in
Displacement 0.26 cu ft
Depth 11.39″
Outside Diameter 18.42″
Cut-Out 16.69″