Ground Zero | Barcode: 4037072023084

GZCS A-1.650D

179,00€ 249,00€

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Amplifier

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Wiring Wizard & Port Calculator

Use our wiring assistant for easy speaker and subwoofer connections! The correct connection is important for your amplifier! Low-impedance operation can damage the amplifier! The datasheet shows you which connection each amplifier is designed for!

Our port calculator shows you the tuning characteristics of your enclosure! The net volume is always particularly important here; calculate the subwoofer’s actual resonant chamber volume beforehand to get the correct result. The net volume is calculated by subtracting all dead spaces and is crucial for enclosure design.

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Bedienungsanleitung

The Ground Zero GZCS A-1.650D is a compact mono amplifier designed to powerfully drive a subwoofer in a vehicle. With an RMS power output of up to 650 watts into 1 ohm, this amplifier combines high output power with a space-saving design.

Thanks to its efficient Class D technology, the GZCS A-1.650D is particularly well-suited for subwoofer applications that require powerful bass performance in a limited installation space. The amplifier operates stably down to an impedance of 1 ohm and delivers 250 watts RMS at 4 ohms, 450 watts RMS at 2 ohms, and 650 watts RMS at 1 ohm.

An adjustable low-pass filter and a subsonic filter are available for tuning to the subwoofer and vehicle. In addition, bass boost and phase can be adjusted to suit the specific sound system. The adjustable input sensitivity makes it easier to tune the system to different signal sources.

In addition to the standard RCA input, the amplifier features a high-level input with an automatic power-on function. This allows the GZCS A-1.650D to be integrated into systems where the factory-installed radio does not provide RCA outputs.

An optional wired bass-level remote control also allows you to conveniently adjust the subwoofer level from the driver's seat.

Product Features

1-Channel Mono Power Amplifier
Efficient Class D Circuit
Designed to drive subwoofers
1-ohm stable
SMD Component Placement
Integrated Active Crossover
Adjustable Low-Pass Filter
Adjustable Subsonic Filter
Adjustable Bass Boost
Adjustable Phase Alignment
Adjustable Input Sensitivity
Stereo RCA Input
High-level input for speaker signals
Auto-On Function When Using the High-Level Input
Power-On Delay
Thermal Protection Circuit
Rugged Power Supply
Large-size terminal blocks
Compact Heat Sink
"Ground Zero" lettering on the heat sink
Connection for optional wired bass level remote control
Optional remote control: GZTA Bass Remote

Technical Specifications

Manufacturer: Ground Zero
Model: GZCS A-1.650D
Item Number: 11130010
Amplifier Type: Mono Class-D Amplifier
Number of channels: 1
RMS Power at 4 Ohms: 1 × 250 watts RMS at 1% THD+N
RMS Power at 2 Ohms: 1 × 450 watts RMS at 1% THD+N
RMS Power at 1 Ohm: 1 × 650 watts RMS at 1% THD+N
Max. output power into 1 ohm: 1 × 750 watts at 10% THD+N
Measurement Standard: CEA-2006-A
Minimum load impedance: 1 ohm
Frequency response: 10 Hz – 250 Hz
Low-pass filter (LPF): 40 Hz – 250 Hz
Low-pass filter slope: 12 dB/octave
Subsonic filter: 10 Hz – 40 Hz
Subsonic filter slope: 12 dB/octave
Bass Boost: adjustable
Bass boost frequency: 50 Hz
Phase adjustment: adjustable
Input sensitivity: 200 mV – 4 V
Signal Input: Stereo RCA/Cinch
High-level input: yes
Auto-On via high level: yes
Fuses: 2 × 30 A
Bass Level Remote Control: Available as an option
Dimensions (W × H × L): 185 × 47 × 152 mm

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Häufige Fragen zum Ground Zero GZCS A-1.650D Verstärker

Für welche Anwendung eignet sich der Ground Zero GZCS A-1.650D?

Die GZCS A-1.650D ist eine Class-D-Mono-Endstufe für den Betrieb von Subwoofern im Fahrzeug. Sie eignet sich sowohl für einen einzelnen Subwoofer als auch für mehrere parallel geschaltete Tieftöner im niederohmigen Bereich.

Wie viel Leistung liefert der GZCS A-1.650D an 1 Ohm, 2 Ohm und 4 Ohm?

Die GZCS A-1.650D liefert 250 Watt RMS an 4 Ohm, 450 Watt RMS an 2 Ohm und 650 Watt RMS an 1 Ohm, gemessen nach CEA-2006-A. Die Maximalleistung liegt bei 750 Watt an 1 Ohm

Kann ich zwei Subwoofer an den GZCS A-1.650D anschließen?

Ja, du kannst zwei Subwoofer parallel betreiben. Zwei 2-Ohm-Subwoofer ergeben zusammen eine Last von 1 Ohm, bei der die Class-D-Endstufe ihre maximale Leistung abgibt.

Wo sollte ich den Tiefpass beim GZCS A-1.650D einstellen?

Ein regelbarer Tiefpass zwischen 60 und 90 Hz hat sich in der Praxis bewährt. Der genaue Wert hängt vom verwendeten Subwoofer, den Frontlautsprechern und der Fahrzeugakustik ab.

Wozu dient die einstellbare Phase am Verstärker?

Die Phasenregelung stimmt den Subwoofer präzise auf die Frontlautsprecher ab und vermeidet Auslöschungen im Übergangsbereich. Ein kurzer Hörtest mit basslastiger Musik zeigt schnell die passende Einstellung.

Welchen Kabelquerschnitt benötigt der GZCS A-1.650D?

Ground Zero empfiehlt für die Stromversorgung mindestens 20 mm² und für die Lautsprecherkabel mindestens 2,5 mm². Die Hauptsicherung gehört maximal 20 cm hinter den Batterie-Pluspol. So bleibt die Versorgung auch bei 1-Ohm-Last stabil.

Warum ist die Class-D-Technologie beim Einbau von Vorteil?

Class-D-Endstufen arbeiten mit hohem Wirkungsgrad und geben weniger Verlustleistung als Wärme ab. Dadurch bleibt die GZCS A-1.650D auch in beengten Einbausituationen effizient und kompakt.

Wie vermeide ich Clipping beim GZCS A-1.650D?

Zur Feinabstimmung eignen sich ein Multimeter oder ein Oszilloskop, um das Eingangssignal sauber einzupegeln. So schließt du Clipping am Verstärker sicher aus und schützt Endstufe sowie Subwoofer.

GZCS A-1.650D - Here's what our expert has to say