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SPL12.1 12" 30cm 4Ohm SVC Subwoofer 650w RMS

World RRP: £59.99


Product code: SPL12.1.4

The most popular size for a car subwoofer at present, the 12″ Bassface woofer is a clear winner. Phenomenal low end performance whilst retaining sledgehammer drum transients – the combination of a large cone and relatively lightweight 2 inch voice coil construction is kept in check by our double roll surround suspension system. Designed to run in compact enclosures, these aren’t going to take up too much space either.

Version History

For the price point we are very happy with the performance of this speaker which outperforms many products costing twice the price, especially on drum transients and bass response. The Version 2 speaker has now been received into the UK warehouse 23/7/18 but will not be shipped until stocks of the Version 1 product have exhausted. Version 2 items are identifiable by the gloss external gift box, rather than the plain brown packing crate of the Version 1 item. The V2 item has been assembled under a strict QC regimen which would normally only be applied to MUCH more expensive speakers. This was as a result of continued patronage of a favoured factory and the differences are immediately noticable in terms of the quantity of adhesive used on the construction of the motors and cones and the accuracy of the placement of that adhesive. Additionally we have noted that the VC is lined to perfection on every sample inspected. It is difficult to "sell" the speaker on the basis of any notable audio performance improvement specifically but we are confident that this approach will yield maximum repeatability when dealing with multi woofer installations or field replacements, as well as the pride of ownership that comes with an item that has been very carefully constructed.



Key Facts

Product Category Subwoofers
Version 2
Series Assault
Date Added 24/10/2016
Date Modified 08/07/2020
Barcode 610395871972
Production Status Discontinued
Product Net Weight (g) (For Pairs/Sets/Major Parts) 3950
Complete Product Pack Weight (g) 4530
Retail Carton L (mm) 340
Retail Carton W (mm) 340
Retail Carton H (mm) 170
Warranty (Months) - Private Enjoyment Use Only 12
Sold As Single

Speaker Data

Speaker Maximum Burst Power (Watts) (One Speaker, Using Appropriate Crossover) 1300
Speaker Power Handling RMS (Watts) (One Speaker, Using Appropriate Crossover) 650
Continuous RMS Power (Watts) (One Speaker, Using Appropriate Crossover & 0%THD) 490
Overall Diameter (mm) 310
Magnet Diameter (mm) (Including Magnet Protector Where Applicable) 150
Installation Cut-Out Diameter (mm) 282
Overall Depth (mm) 140
Mounting Depth (mm) 130
Front Protrusion From Mounting Plane (mm) 10
Impedance (Ohm) (Nominal) 4
Optimum Bass Enclosure Type Sealed
Recommended Bass Enclosure Volume (CuFt) 1.7
Voice Coil External Diameter (mm) 50

Technical Highlights

  • Perfect for sealed enclosures
  • Can also be used in an infinite baffle setup or vented application with appropriate amplification and cone control care
  • Heavy Gauge Steel Basket
  • High Density Ceramic Magnet
  • Lightweight Anti-Flex Patterned PP Cone
  • Custom Tooled Aluminium Voice Coil
  • Vented Back Plate For Better VC Cooling
  • Bumped Pole Piece For Improved Excursion

Related products

What's In The Box?

  • 1 x Premium Grade High Performance Car Subwoofer
  • 1 x Fitting Template
What's In The Box?

Technical Parameters

Re (Ohm) 3.2
fs(Hz) 35.78
Mms (g) 90.539
MMd (g) 83.746
Cms(mm/N) 219.419
BL (T m) 10.642
Qms 4.668
Qes 0.574
Qts 0.511
Vas (Ltr) 83.845
n0(%) 0.00643
Sd(cm2) 518.75
SPL (db/1Wm) 90.1
Krm (Ohm) 12.383
Erm 0.746
Kxm (mOhm) 66.329
Exm 0.611
Xmax Both Way Total (mm) 11