Black 8-Inch Single Magnet Subwoofer - 4 Ohms, 85W RMS, 600W Peak

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About this item:-

• Packaging - Completely packed in Wood. Get your subwoofer fresh and intact. Chassis & Voice coil - Fredo AIT8.4SM comes with Elevated Back, DieCast, deeper depth 11Cms chassis. Enabling longer pistonic movement of Voice Coil 11mm, easily overdriven, safety margin to 14mm (X damage). Elevated back makes its pistonic movement & chassis depth, equivalent to 10 Inch single ferrite subwoofer.
• Diaphragm - Stitched Cone made of Non pressed paper for accurate and sharp cut-off punch. Cone comes with Big Roll Foam surround, for more air sealing and sturdy pasting application with the chassis assembly. Competitive PP cones may look shinier & clean, but for bass, paper cones are best.
• Voice coil is 1.5 Inch diameter, made of pure copper with 4 layer winding, resistive to high temperatures.
• Standard feature in all Fredo Subwoofers - Push Fit, colour coded Steel Terminals, Under-spider and Pole piece ventilation, ferrite assembly cover casings and superior quality foam surround on chassis periphery
• Standard feature in all Fredo Subwoofers - Push Fit, colour coded Steel Terminals, Under-spider and Pole piece ventilation, ferrite assembly cover casings and superior quality foam surround on chassis periphery
• Power Ratings - Nominal Power 120W at 4Ω, Continuous use 360W and Peak at 600W (shorting threshold). RMS Power 85W.

What is the best in this subwoofer:-

• The magic is in the magnet kit of Fredo 8in Single Magnet subwoofer. It has an elevated back leading to more longitudinal movement (X-max) of voice coil assembly. And it is well known, more X-max leads to a harder punch. Compare this feature on any competitive sub, we are sure, it will be rare to find.
• At Fredo we made MOST of our Single Magnet subwoofers with elevated back, to have bumped up performance to a double magnet subwoofer.
• On our shallow mount/low rider subwoofers - we have used massive magnet(s) size to compensate for reduced X-max.

*BoM - Bill of Materials - Cost calculator

• Chassis: ₹160/-
• Cone + Dust cap: ₹160/-
• Single Ferrite: ₹268/-
• Single Voice Coil: ₹241/-
• Elevated back steel fitting: ₹455/-
• Wires, terminals, gasket fittings: ₹95/-
• Total: ₹1379/-

*E-retailers Amazon etc. will have their commission added to above price.

Recommended Box Volumes

We recommend 35 L of round ported box volume for accurate bass and roll off. Alternatively, rectangular front slotted cabinets are available from Fredo with 23 L volumes (35 x 28 x 25 cms) on Amazon and fredo.in

Front slots will take lesser volumes than round ports because of better air pumping efficiency and recommended for movies and music setups.