Product comparison · 2 car subwoofers

Hama GZRB 2.250SPL vs Kenwood KFC-PS2517W Subwoofer driver

8specifications compared
7differ
1identical
22known for one product only

Key differences

The Hama GZRB 2.250SPL has 1,200 W more subwoofer RMS power than the Kenwood KFC-PS2517W Subwoofer driver (1600 W vs 400 W). The Hama GZRB 2.250SPL has 4 Ω more subwoofer impedance than the Kenwood KFC-PS2517W Subwoofer driver (8 Ω vs 4 Ω). The Hama GZRB 2.250SPL has 425 mm more width than the Kenwood KFC-PS2517W Subwoofer driver (700 mm vs 275 mm). Product type: Pre-loaded subwoofer on the Hama GZRB 2.250SPL, Subwoofer driver on the Kenwood KFC-PS2517W Subwoofer driver. Subwoofer type: Passive subwoofer on the Hama GZRB 2.250SPL, Active subwoofer on the Kenwood KFC-PS2517W Subwoofer driver.

Product type
- GZRB 2.250SPL:Pre-loaded subwoofer
- KFC-PS2517W Subwoofer driver:Subwoofer driver
Subwoofer type
- GZRB 2.250SPL:Passive subwoofer
- KFC-PS2517W Subwoofer driver:Active subwoofer
Subwoofer RMS power
- GZRB 2.250SPL:1600 W
- KFC-PS2517W Subwoofer driver:400 W
Subwoofer impedance
- GZRB 2.250SPL:8 Ω
- KFC-PS2517W Subwoofer driver:4 Ω
Width
- GZRB 2.250SPL:700 mm
- KFC-PS2517W Subwoofer driver:275 mm
Depth
- GZRB 2.250SPL:330 mm
- KFC-PS2517W Subwoofer driver:142.2 mm
Height
- GZRB 2.250SPL:480 mm
- KFC-PS2517W Subwoofer driver:275 mm

Side by side

Differences highlightedShow differences only

Comparison of GZRB 2.250SPL, KFC-PS2517W
30 specifications	A Hama GZRB 2.250SPL View product	B Kenwood KFC-PS2517W Subwoofer driver Model KFC-PS2517W View product
Subwoofer4 differ
Product typeDiffers	Pre-loaded subwoofer	Subwoofer driver
Subwoofer typeDiffers	Passive subwoofer	Active subwoofer
Subwoofer RMS powerDiffers	1600 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 impedanceDiffers	8 Ω	4 Ω
Subwoofer driver diameterKnown for one	25 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
Weight & dimensions3 differ
WidthDiffers	700 mm	275 mm
DepthDiffers	330 mm	142.2 mm
HeightDiffers	480 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
Materialidentical
Housing materialKnown for one	Aluminium, MDF	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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