Version History
Prototype - 6 off built specially for evaluation purposes. Used variously including in competition with great success. Noted the need for improved glue on the surround under extreme load and also a slightly uprated spider. VC and magnet fine, basket at limits for SPL. V1 therefore commissioned on this basis with appropriate changes. A tremendous sell out success the XPL15 will be available again at the end of 2018, with exactly the same build quality and devastaing performance. V2 features a newly developed tinsel arrangement for even more durability at the limit and the aforementioned adhesive improvements. Available Q1 2019
What's In The Box?
- 1 x SPL Competition Grade 15 Inch Very High Power Subwoofer
- 1 x Custom Made Packing Crate
TS Parameters
| Revc (Ohm) |
4 |
| Fo (Hz) |
43.866 |
| Sd (Cm sq) |
808.87 |
| Md (g) |
200 |
| BL (T m) |
30.423 |
| Qms |
6.746 |
| Qes |
0.536 |
| Qts |
0.496 |
| No (%) |
0.414 |
| SPL (Db) |
88.2 |
| Vas (Ltr) |
27.186 |
| Cms (uM/N) |
29.262 |
| Krm (Ohm) |
24.329 |
| Erm |
0.779 |
| Mms (g) |
449.868 |
| MMd (g) |
436.640 |
| Kxm (mOhm) |
236.089 |
| Exm |
0.534 |
| Xmax Both Way Total (mm) |
40 |
Key Facts
| Product Category |
Subwoofers |
| Version |
2 |
| Series |
Hammer |
| Date Modified |
06/01/2020 |
| Barcode |
683422298561 |
| Production Status |
Current |
| Product Net Weight (g) (For Pairs/Sets Weight Is All Major Parts) |
29000 |
| Complete Product Pack Weight (g) |
35000 |
| Retail Carton L (mm) |
440 |
| Retail Carton W (mm) |
440 |
| Retail Carton H (mm) |
350 |
| Warranty (Months) |
12 |
| Sold As |
Single |
Speaker Data
| Speaker Maximum Recommended Power (Watts) (One Speaker, Using Appropriate Crossover) |
7000 |
| Speaker Power Handling RMS (Watts) (One Speaker, Using Appropriate Crossover) |
3500 |
| Continuous RMS Power (Watts) (One Speaker, Using Appropriate Crossover & 0%THD) |
2630 |
| Overall Diameter (mm) |
400 |
| Magnet Diameter (mm) (Including Magnet Protector Where Applicable) |
230 |
| Installation Cutout Diameter (mm) |
355 |
| Overall Depth (mm) |
295 |
| Mounting Depth (mm) |
255 |
| Front Protrusion From Mounting Plane (mm) |
40 |
| Impedance (Ohm) (Nominal) |
2+2 |
| Sensitivity (db/1Wm) |
88 |
| Total Magnet Weight (Oz) |
450 |
| Magnet Type |
Y35 |
| Recommended Cable |
4 AWG |
| Voice Coil Diameter (mm) |
78 |
Technical Highlights
- Shipping By Pallet Only (Extreme Weight)
- Designed For Hybrid Competition Use
- 3 Inch 4 Layer Round Wire Dual 2 Ohm Voice Coil
- 450 Oz Triple Stack Y35 Magnet With Cooling System
- 4 x 2x2 Stacked 10 Inch Linear Nomex Spider
- Non Pressed Paper Cone With Kevlar Reinforced Stitching
- Custom Designed Tall And Narrow Surround For Extreme Excursion And Control
- Highly Rigid Cast Aluminium Basket
- Extra Large Dust-cap For Superior Cone Stiffness
- Quick Release Push Terminals
- Integrated Rubber Gasket
- Twin Large Gauge Tinsel Leads Stitched To Spider
