Brand New!

HC Series

The HC Series signals a return to traditional ferrite motors. The HC Series is the latest in the progression of Fi subwoofers geared towards thundering daily drivers. Utilizing a favorite 3 stack ferrite magnet design using US steel cut on our water jet and finish machined on our CNCs, there is plenty of motor force in the FEA derived design for both daily and SPL use. Utilizing a solid pole and staged aluminum cooling helps keeps thermal temperatures under control. A classic 3 stack of ferrite magnets provide the Gauss while 4 Fi designed 10″ heavy progressive spiders keep things under mechanical control. Utilizing a special 144 tinsel count leadwire that is double sewn to the spider pack, there are no losses in power transfer to the coil (available in either standard stitched with terminals or the hybrid stitched with bolted termination.

The HC brings back an updated favorite with the performance you have come to expect from our classic ferrite designs.

Above is the technical overview showing 3 stages of cooling and inductance mitigation

Features

• Dual 1 and Dual 2 Ohm
• Extra heavy aluminum basket
• Wrap around gasket
• Kraft pulp fiber reinforced cone
• Dual layer wide foam surround
• Standard heavy duty stitched hybrid lead or push/hybrid termination
• 144 tinsel count leads
• FEA optimized motor design
• High Flux density design
• 3” diameter 4 layer coil
• Triple stack magnets
• Carbon cap standard
• Water jet and machined in house from US steel
• Four progressive spiders
• Staged Aluminum Cooling
• 6″ Gloss Carbon dustcap

THIELE-SMALL PARAMETERS

Parameter	HC-15
Coils	Dual 1
Fs	32.8 Hz
Re	0.9
Qms	6.61
Qes	0.30
Qts	0.29
Mms	326 g
Cms	0.718 M/N
Sd	810 cm²
Vas	28.1 L
SPL	90.8 dB
Bl	20.0 N/A
Xmax	34 mm (one way)
RMS Power	2500W

Technical Specifications

Model	HC-15
Overall Diameter	15.625"
Cutout Diameter	14.125"
Mounting Depth	8.750"
Driver Displacement	0.09 cu ft
Sealed Box	1.5 – 2.5 cu ft
Ported Box	3 – 5 cu ft @ 33 Hz

View Enclosure Dimensions & Cut List