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The Workhorse Powered GRS 8" Mini Subwoofer Kit 300 Watts

Parts Express
Part #300-7334

The Workhorse Powered GRS 8" Mini Subwoofer Kit 300 Watts

Parts Express
Part #300-7334  
Occupying just 0.6 cubic feet, this Workhorse mini 8" subwoofer kit will deliver surprisingly powerful output making it a perfect addition to smaller stereo and home theater systems. With the venerable GRS 8SW-4HE 8" driver and powered by a SPA300-D amplifier, this subwoofer kit has more power and flexibility than you would expect from a system this small.
Key Features
  • Extremely compact design will fit almost anywhere
  • 300 watt ultra-efficient Class D amplifier offers plenty of headroom
  • Selectable 6dB/oct 30 Hz bass boost for application flexibility
  • Use multiples to help minimize room modes for more even, room-filling low end
  • High excursion GRS 8SW-4HE 8" driver with 300 watt amplifier provides powerful output capability
  • CNC-cut 3/4" MDF panels for precise fit, easy assembly, and smooth finish
  • Kit includes pre-cut knock down enclosure, subwoofer driver, amplifier, and mounting screws.
Your Price: $279.98
+ FREE SHIPPING
MSRP: $499.95
Save $219.97 (44%)
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Estimated back in stock 7/30/2025
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Overview

The Workhorse Powered GRS 8" Mini Subwoofer Kit 300 Watts

Housed in just a 10” cube, the Workhorse GRS 8SW-4HE 8" 300 Watt Mini Subwoofer Kit is the perfect solution for providing high performance bass response without taking up much space. With the GRS high excursion 8SW-4HE 8" subwoofer driver powered by the extremely versatile SPA300-D 300W plate amplifier you can expect incredibly accurate response with low distortion. The selectable 6 dB bass boost at 30 Hz can help with the lower octaves if you want a little more low-end extension. Thanks to the small size this subwoofer is ideal for using multiples strategically positioned around rooms to minimize room nodes (null and peaks) for more even bass distribution.

The GRS Workhorse is ideal for adding bass wherever you need it; the garage, a basement, a bedroom, etc. It will excel at it's job and not complain, all while not emptying your wallet.

Simulated Performance Specifications: • Maximum output: 106.5 dB • F3: 46 Hz • F10: 29 Hz • Boosted F10: 21 Hz

GRS 8SW-4HE 8" Subwoofer Specifications: • Power handling: 150 watts RMS/300 watts max • Le: 2.7 mH • Impedance: 4 ohms • Re: 3.8 ohms • Frequency range: 30 to 700 Hz • Fs: 24.9 Hz • SPL: 85 dB 2.83V/1m • Vas 1.12 cu. ft. • Qms: 4.42 • Qes: .51 • Qts: .45 • Xmax: 10.8 mm.

Dayton Audio SPA300-D 300W Subwoofer Plate Amplifier Specifications: • Power output: 300 watts RMS into 4 ohms, THD+N <1.5% • Signal to noise ratio: 101 dB (A-weighted) • Low pass adjustment: 40 - 200 Hz • Phase adjustment: Switchable from 0º (normal) to 180º (reverse) • Bass Boost: Selectable, 6 dB/octave at 30 Hz • Power requirements: 110~120/220~240 VAC selectable, 50/60 Hz.

Enclosure Specifications: • Panel thickness: 3/4" • Panel material: Medium Density Fiberboard (MDF) • Finished internal cabinet volume: 0.35 cubic feet • External dimensions: 10" H x 10" W x 10-1/2" D • Weight: 23 lbs. • Made in the USA.

Note: Cabinet feet are not included.

Product Details

BrandParts Express
Part Number300-7334
UPC848864071930
Weight11.45

Product Specifications

Cabinet Dimensions (HxWxD)10" H x 10" W x 10" D
Cabinet OptionsUnfinished/Unassembled
ConfigurationSubwoofer
Speaker TypeActive / Powered
Woofer Diameter8"

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