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HELIX Competition C6B
6-3/4" midbass speaker set
Item #: 975C6B
This item is no longer available.
Original Price: $349.99
Our take on the HELIX Competition C6B by Crutchfield's John Pollard
Are you looking to add some extra kick to your car's audio system? HELIX made their Competition C6B 6-3/4" midbass speakers from Agave sisalana, an extremely stiff natural fiber, to give you the tight, responsive performance you want. The C62C or C63C component speaker systems from Helix feature an extra set of woofer outputs on their crossover networks. These C6B speakers are duplicates of the ones in these component systems, so they are perfect for adding even more midbass impact.
These speakers will also work fine as standalone midbass drivers. You can feed them plenty of power — up to 150 watts RMS — so there's no need to be shy with the volume control.
Note: HELIX describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.
What's in the Box:
- 2 Woofers
- 2 Metal grilles
- 2 Plastic grille frames
- 6-3/4" midbass speaker set
- Agave sisalana fiber woofer cone with elastomer structural damping
- rubber surround
- 4-ohm impedance
- power range: 10-150 watts RMS (300 watts peak power)
- frequency response: 47-5000 Hz
- sensitivity: 91 dB
- mounting depth: 2-5/8"
- warranty: 2 years
- Our 60-day money-back guarantee
HELIX Competition C6B Reviews
Features and Specs
|Size||6 3/4 -inch|
|Ideal Sealed Box Volume (cubic feet)||N/A|
|Ideal Ported Box Volume (cubic feet)||N/A|
|Port diameter (inches)||N/A|
|Port length (inches)||N/A|
|Dual Voice Coil||No|
91 dB at 1 watt
|Frequency Response||47 - 5000 Hz|
|RMS Power Range (Watts)||10-150|
|Peak Power Handling (Watts)||300|
|Top Mount Depth (inches)||2 5/8|
|Bottom Mount Depth (inches)||2 13/16|
|Cutout Diameter or Length (inches)||5 5/8|
|Parts Warranty||2 Years|
|Labor Warranty||2 Years|
Cone: The woofer cones are made of sisal fiber and they use durable rubber surrounds. The mechanical advantages of sisal, rigidity and inner damping, result in faster transients and precise detail.
Magnet cover: The woofers are shipped with a rubber magnet cover to protect the speaker. If the cover is removed the depth changes slightly:
- Top Mount Depth: 2.54"
- Bottom Mount Depth: 2.71"
Terminals: Each speaker has screw terminal inputs that will accommodate bare wire or spade connectors up to 0.315" wide.
Size Classification Note: Crutchfield has traditionally referred to this size speaker as a 6-3/4", while some manufacturers, including Helix (Audiotec Fischer), call it a 6-1/2". Please refer to the Crutchfield Vehicle Selector to confirm fit in your vehicle.
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