SP-9000.1D - @2 ohm

Sale price$ 23,277.00
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ReadyShips in 24/48 h from Italy

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SP Audio - Super Power AudioSUPER POWER AUDIO
DESIGNED IN ITALY
MMXXVI
1 channel · class D · competition mono

9000 watt RMS.
At 2 ohm.

The @2 ohm version of the SP-9000.1D: full rated power on a 2 ohm load, for systems built around dual voice-coil subwoofers wired to 2 ohm. Power like this is won at the battery — alternator, cable section and fuses are part of the project.


2300WRMS · 8 Ω MONO
4500WRMS · 4 Ω MONO
9000WRMS · 2 Ω MONO
🔒 Secure checkout · SSL & PCI DSS↩ 14 days to change your mind (EU)✓ Invoice from an Italian company
✓ ITALIAN DESIGN✓ CONTINUOUS RMS ONLY✓ SMART COOLING✓ FULL PROTECTION SET✓ FREE SUPPORT
01

Power, measured not promised

MONO · 8 Ω
2300 W
MONO · 4 Ω
4500 W
MONO · 2 Ω
9000 W

RMS @ 14.4 V · CONTINUOUS POWER, NOT BURST · MINIMUM LOAD 2 Ω · THIS IS THE @2 OHM VERSION

02

Why this amplifier

One channel, all the current

A single output stage delivers 9000 W RMS into 2 ohm. No bridging, no two channels sharing a power supply: everything goes to the subwoofer.

Built around the electrical system

Big battery, a strong alternator, generous cable section and correctly sized fuses are part of the amplifier, not accessories. Weak wiring means low voltage, and low voltage means protection.

Smart cooling

Temperature-driven fan and a thermal management system that ramps airflow only when it is needed — quiet on the street, ready when the level goes up.

Protected, not fragile

Output short circuit, high and low supply voltage and thermal protection. It works between 9 V and 16 V and defends itself instead of dying quietly.

“Continuous RMS only. No peak, no burst, no marketing watts.”
Free shippingDispatched from Italy in 24–48 working hoursWarranty on manufacturing defectsFree technical support from Italy
SP-9000.1D @2 OHM · USER MANUAL (PDF)

The official SP-9000.1D user manual: wiring, loads and impedance, filters and gain calibration.

⇩ Download the manual (PDF)

English · 2026

03

What you receive

The amplifier, ready to wire.

The SP-9000.1D @2 ohm is sold as a single unit, packed for transport. What decides the result is what you put around it: battery, alternator, cable section, fuses and the subwoofer load.

In the box: amplifier · mounting hardware.
Not included: power and speaker cable, inline fuse holder and RCA cable — installation materials, chosen for your vehicle and your system.

04

Technical specifications

POWER OUTPUT — RMS @ 14.4 V
Mono 8 ohm 1 × 2300 W
Mono 4 ohm 1 × 4500 W
Mono 2 ohm 1 × 9000 W
Minimum load 2 ohm
POWER SUPPLY & PROTECTION
Minimum supply voltage 9 V
Maximum supply voltage 16 V
Protections Output short circuit, high supply voltage, low supply voltage, thermal
Thermal management Smart Cooling System, temperature-driven fan
FILTERS & INPUTS
Topology Class D, mono, 1 channel
Frequency response 10 Hz – 20 kHz (3 dB)
S/N ratio 100 dB
Input sensitivity 200 mV
Input impedance 56 kΩ
High-pass filter (HPF) 15 – 80 Hz
Low-pass filter (LPF) 80 Hz – 10 kHz
Bass boost 0 – 12 dB (50 Hz)
DIMENSIONS
Dimensions L × W × H 392 × 219 × 74 mm
Sold as Unit

MANUFACTURER’S LABORATORY DATA · PEAK OR “BURST” FIGURES USED IN SOME MARKETS ARE NOT RMS AND ARE NOT LISTED

05

Complete the system

06

Before you install it

  • Build the electrical system first. A healthy battery, a strong alternator and a generous cable section are what let this amplifier reach its rated power.
  • Inline main fuse within 20 cm of the battery, sized to the cable, plus a ground point on bare metal. Use 0 AWG for the battery run.
  • Respect the minimum load: 2 ohm. This is the @2 ohm version: do not wire it below 2 ohm. A lower impedance triggers the protection and, if repeated, damages the output stage.
  • Keep the supply between 9 V and 16 V, 12 V negative ground, and leave air around the amplifier so the fan can work. Professional installation is recommended: damage caused by improper installation is not covered by warranty.
07

Questions installers ask

What is the difference from the @1 ohm version?This is the @2 ohm version: its minimum load is 2 ohm and it reaches 9000 W RMS there. The @1 ohm version is a different product, rated for a different load.
Which subwoofer load should I use?Any load down to 2 ohm. At 2 ohm you get 9000 W RMS, at 4 ohm 4500 W and at 8 ohm 2300 W.
Can I wire it to 1 ohm?No. 2 ohm is the minimum load of this version. For a 1 ohm system, choose the SP-9000.1D @1 ohm.
Which cable and fuse?0 AWG power and ground for the battery run, an inline fuse within 20 cm of the battery sized to the cable, and a ground point on bare metal.
What are its dimensions?392 × 219 × 74 mm. Plan the space with the fan free to move air.
Free technical support from Italy. Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — impedance, power, box litres, crossover points — and we will help you match it.
spaudio@spaudio.it · +39 340 807 8778

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SP Audio — Super Power Audio. Designed in Italy by Audiocar Import & Export SRLS, Milano, official SP Audio distributor for Europe.