The Massive Audio HIPPO Series MA-H84X is an 8-inch subwoofer rated at 800 watts RMS and 1400 watts peak. It has dual 2.5-inch voice coils with a 4-ohm impedance per coil.
The basket is textured cast aluminum. The cone is non-pressed paper reinforced with Kevlar fiber and has a red stitched edge and a tall, narrow foam surround. The voice coil former is black anodized with Kevlar spunlace. The motor uses a 120 oz double-stack strontium magnet and a one-piece black anodized pole plate.
Other build details include oversized mirror-image dual Poly/Nomex spiders, a reinforced woven fiberglass dust cap, and heavy-duty triple tinsel leads. Wires connect directly to the voice coils. A custom-tooled rubber gasket and magnet boot are included in the design.
- Size
- 8"
- RMS power
- 800 W
- Peak power
- 1400 W
- Voice coil
- 2.5" dual, 4 ohm
- Cone
- Non-pressed paper with Kevlar fiber reinforcement
- Surround
- Tall and narrow foam
- Magnet
- 120 oz strontium, double stack
- Basket
- Cast aluminum
- Terminals
- Heavy-duty direct input wire connection
- Tinsel leads
- Heavy-duty triple
- X-Max
- 14 mm
- SPL
- 86 dB
- Fs
- 49.96 Hz
- Re
- 6.4 ohms
- Le
- 0.931 mH
- BL
- 23.2 Tm
- Qms
- 5.687
- Qes
- 0.758
- Qts
- 0.669
- Vas
- 3.255 L
- Cms
- 50 um/N
- Mms
- 203 g
- Sd
- 0.0214 sq cm
- Vd
- 0.3 L
- Ported box
- 19.6" H x 11" D x 9.9" W internal, with 2.5" x 2.22" round port
- Sealed box
- 1.08 ft³ internal
- In the box
- 1 MA-H84X subwoofer