Product comparison · 2 car audio amplifiers

Hama Ground Zero vs Hama GZTA 4.120MK

11specifications compared
10differ
1identical
19known for one product only

Key differences

Audio output channels
- Ground Zero:1.0 channels
- GZTA 4.120MK:4.0 channels
RMS power output per channel (2 Ohm)
- Ground Zero:550 W
- GZTA 4.120MK:110 W
RMS power output per channel (4 Ohm)
- Ground Zero:350 W
- GZTA 4.120MK:75 W
Dynamic power per channel (2 Ohm)
- Ground Zero:650 W
- GZTA 4.120MK:125 W
Bass boost
- Ground Zero:0 - 18 dB
- GZTA 4.120MK:6 - 12 dB
Line inputs (RCA)
- Ground Zero:1
- GZTA 4.120MK:2
Product colour
- Ground Zero:Aluminium, Black
- GZTA 4.120MK:Black, Silver
Width
- Ground Zero:299 mm
- GZTA 4.120MK:339 mm

Side by side

Differences highlightedShow differences only

Comparison of Ground Zero, GZTA 4.120MK
30 specifications	A Hama Ground Zero View product	B Hama GZTA 4.120MK View product
Performance5 differ
Audio output channelsDiffers	1.0 channels	4.0 channels
Peak power per channelKnown for one	1800 W	Unknown — not stated by the source
Output impedanceKnown for one	1 Ω	Unknown — not stated by the source
RMS power output per channel (1 Ohm)Known for one	650 W	Unknown — not stated by the source
Total Harmonic Distortion (THD)Known for one	1%	Unknown — not stated by the source
RMS power output per channel (2 Ohm)Differs	550 W	110 W
RMS power output per channel (4 Ohm)Differs	350 W	75 W
Dynamic power per channel (2 Ohm)Differs	650 W	125 W
Bass boostDiffers	0 - 18 dB	6 - 12 dB
Crossover frequencyKnown for one	50 Hz	Unknown — not stated by the source
Phase shiftKnown for one	0 - 180°	Unknown — not stated by the source
Remote control includedKnown for one	No	Unknown — not stated by the source
Subsonic filterKnown for one	Yes	Unknown — not stated by the source
Subsonic filter frequencyKnown for one	15 - 50 Hz	Unknown — not stated by the source
Bridge-mode power output per channel (4 Ohm)Known for one	Unknown — not stated by the source	250 W
Ports & interfaces1 differ
Audio (L/R) inKnown for one	1	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Line inputs (RCA)Differs	1	2
Speakers connectivity typeKnown for one	Unknown — not stated by the source	RCA
Connection to PCKnown for one	Unknown — not stated by the source	No
Features1 differ
Product colourDiffers	Aluminium, Black	Black, Silver
Housing materialKnown for one	Aluminium	Unknown — not stated by the source
Technical detailsidentical
EqualizerKnown for one	No	Unknown — not stated by the source
Cooling typeKnown for one	Passive	Unknown — not stated by the source
Turntable connectivityKnown for one	No	Unknown — not stated by the source
Poweridentical
DC input voltageKnown for one	14.4 V	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	299 mm	339 mm
DepthDiffers	263 mm	55 mm
HeightDiffers	55 mm	263 mm

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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