DC Audio 9.0k - 9,000w Monoblock Amplifier - DCA-9.0K
The 9.0kw competition series amplifier is a 9,000 watt mono block. It is capable of running up to 18 volts for up to 11,000 watts. It is a linkable amp and designed to run at 1 ohm per amp or 2 ohms when strapped. It comes with a bass knob and a clipping indicator. For power inputs it will accept triple 0 awg for power and triple 0 awg for ground.
Features
1 ohm stable
Variable low pass filter
Variable subsonic filter
Variable bass boost
Wired remote control
Triple 0 awg power and ground inputs
Specifications
Features
Voltage
9.0kw
Output Power (RMS)
4 ohm
14.4V
2,400W x 1
2 ohm
4,800W x 1
1 ohm
9,000W x 1
1 ohm
16V
9,800W x 1
1 ohm
18V
11,000W x 1
Input Sensitivity
6V~0.2V
Low Pass Filter
Switchable
( @ 24 dB Slope)
Variable
Hz
35~250
Subsonic Filter
Switchable
( @ 24dB slope )
Variable
Hz
10~50
Bass Boost
Variable
dB
0-9dB
Frequency Response
Hz
15-270
Signal to Noise Ratio
dB
100
Damping factor
150<
Efficiency @ 4ohm
%
Over 90%
THD @ 4ohms
Less than 0.1%
Fuse Rating
900 Amps
Linked Fuse Rating
1800 Amps
Indicator
Power
Yes
Protection
Yes
Clip
No
Speaker & Power terminal
Mold Type
Yes
Power
Gauge
0Ga x 3
Heatsink Length
inch/mm
34.65"/880mm
What Our Experts Think
The DC Audio 9.0k (DCA-9K) is a competition-grade Class D monoblock amplifier built for extreme SPL and high-output bass systems
Delivers up to 9,000W RMS @ 1Ω (14.4V system voltage) for serious subwoofer setups
Capable of higher output in advanced electrical systems (up to ~11,000W at elevated voltage setups)
Designed for linkable operation, allowing multiple amps to be strapped for massive multi-amp builds
Accepts triple 0 AWG power and ground inputs for stable high-current delivery under load
Includes full tuning suite: low-pass filter, subsonic filter, bass boost, phase control, and remote gain control
Built for SPL competition systems, typically paired with multiple high-power subwoofers (15"–18")
Requires upgraded electrical system (high-output alternator + lithium/AGM bank) for safe performance
Q&A
Q: How much power does the DC Audio 9.0k produce? A: It delivers 9,000 watts RMS at 1 ohm, with higher output possible at increased system voltage.
Q: Is it stable at 1 ohm? A: Yes, it is 1-ohm stable and designed for high-current SPL setups.
Q: Can it be used for daily driving? A: Yes, but it is mainly intended for competition or high-output custom audio builds.
Q: Does it support linking with other amps? A: Yes, it is linkable/strap-capable for multi-amplifier systems.
Q: What subs work best with it? A: High-power competition subwoofers like DC Audio Level series, Sundown ZVX, or similar SPL drivers.
Maintenance Tips
Always maintain stable voltage (avoid drops under heavy bass load)
Set gain properly to avoid clipping and speaker damage
Ensure strong grounding with proper 0 AWG wiring throughout system
Provide proper airflow to prevent thermal shutdown
Upgrade electrical system before full-power use (alternator + batteries)
Break in subwoofers properly before running high wattage levels
Damage 
Loss 
Theft 
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