Product comparison · 2 car subwoofers

Hama GZRB 300BPX vs Kenwood KFC-PS2517W Subwoofer driver

7specifications compared
6differ
1identical
25known for one product only

Key differences

The Hama GZRB 300BPX has 100 W more subwoofer RMS power than the Kenwood KFC-PS2517W Subwoofer driver (500 W vs 400 W). The Hama GZRB 300BPX has 225 mm more width than the Kenwood KFC-PS2517W Subwoofer driver (500 mm vs 275 mm). The Hama GZRB 300BPX has 247.8 mm more depth than the Kenwood KFC-PS2517W Subwoofer driver (390 mm vs 142.2 mm). Product type: Pre-loaded subwoofer on the Hama GZRB 300BPX, Subwoofer driver on the Kenwood KFC-PS2517W Subwoofer driver. Subwoofer type: Passive subwoofer on the Hama GZRB 300BPX, Active subwoofer on the Kenwood KFC-PS2517W Subwoofer driver.

Product type
- GZRB 300BPX:Pre-loaded subwoofer
- KFC-PS2517W Subwoofer driver:Subwoofer driver
Subwoofer type
- GZRB 300BPX:Passive subwoofer
- KFC-PS2517W Subwoofer driver:Active subwoofer
Subwoofer RMS power
- GZRB 300BPX:500 W
- KFC-PS2517W Subwoofer driver:400 W
Width
- GZRB 300BPX:500 mm
- KFC-PS2517W Subwoofer driver:275 mm
Depth
- GZRB 300BPX:390 mm
- KFC-PS2517W Subwoofer driver:142.2 mm
Height
- GZRB 300BPX:510 mm
- KFC-PS2517W Subwoofer driver:275 mm

Side by side

Differences highlightedShow differences only

Comparison of GZRB 300BPX, KFC-PS2517W
32 specifications	A Hama GZRB 300BPX View product	B Kenwood KFC-PS2517W Subwoofer driver Model KFC-PS2517W View product
Subwoofer3 differ
Product typeDiffers	Pre-loaded subwoofer	Subwoofer driver
Subwoofer typeDiffers	Passive subwoofer	Active subwoofer
Subwoofer RMS powerDiffers	500 W	400 W
Subwoofer frequency rangeKnown for one	Unknown — not stated by the source	33 - 300 Hz
Subwoofer peak powerKnown for one	Unknown — not stated by the source	1300 W
Subwoofer sensitivityKnown for one	Unknown — not stated by the source	85 dB
Subwoofer impedanceKnown for one	Unknown — not stated by the source	4 Ω
Subwoofer driver diameterKnown for one	30 cm	Unknown — not stated by the source
Enclosure typeKnown for one	Bandpass	Unknown — not stated by the source
Technical detailsidentical
Voice coil diameterKnown for one	Unknown — not stated by the source	5 cm
Product colour	Black	Black
Displacement volumeKnown for one	Unknown — not stated by the source	0.9 cm³
Driver unitKnown for one	Unknown — not stated by the source	25 cm
Effective piston area (Sd)Known for one	Unknown — not stated by the source	0.0512 cm²
Electrical Q-factor (Qes)Known for one	Unknown — not stated by the source	0.554
Force factor (Bl)Known for one	Unknown — not stated by the source	13.2
Magnet typeKnown for one	Unknown — not stated by the source	Ferrite
Mechanical Q-factor (Qms)Known for one	Unknown — not stated by the source	6.95
Moving mass (Mms)Known for one	Unknown — not stated by the source	124 g
Peak excursion (Xmax)Known for one	Unknown — not stated by the source	5.9 mm
Total Q-factor (Qts)Known for one	Unknown — not stated by the source	0.513
Volume Acoustic Compliance (VAS)Known for one	Unknown — not stated by the source	31.9 L
BacklightKnown for one	Yes	Unknown — not stated by the source
ImpedanceKnown for one	4 Ω	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	500 mm	275 mm
DepthDiffers	390 mm	142.2 mm
HeightDiffers	510 mm	275 mm
WeightKnown for one	Unknown — not stated by the source	4 kg
Cutout diameterKnown for one	Unknown — not stated by the source	23 cm
Mounting depthKnown for one	Unknown — not stated by the source	12.4 cm
VolumeKnown for one	58 L	Unknown — not stated by the source
Materialidentical
Housing materialKnown for one	MDF, Wood	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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