SP DRIVER 45 COMPLETE DRIVER WITH HORN 200W RMS (UNIT PRICE)
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SUPER POWER AUDIODESIGNED IN ITALY
MMXXVI
200 watt RMS.
Driver and horn, one piece.
A complete compression driver with its horn: 200 W RMS, 103 dB sensitivity and a 44.4 mm / 1.75" voice coil on a 25 mm (1") throat. Usable range 500 Hz – 17 kHz. Sold as a single unit.
Power, measured not promised
PER DRIVER · RMS IS CONTINUOUS POWER, NOT BURST · NOMINAL 4 Ω
Why this driver
It arrives with its horn already on. Nothing else to source: wire the crossover, mount it, aim it.
The coil measures 44.4 mm / 1.75" and is wound in CCAW (aluminium). That is the part that turns 200 W RMS into pressure and then has to survive it.
A wide rated band: low enough to cross from the midrange early, high enough to keep the top end open.
103 dB sensitivity on a 15 oz magnet assembly, with a 25 mm (1") throat feeding the horn.
Look at it closely
Full specifications and mounting data, straight from the factory sheet.
⇩ Open the manual (PDF)English · 2026 · opens in a new tab
What you receive
The price on this page is for one piece: the SP DRIVER 45 compression driver with its horn. Packed in the SP Audio box.
In the box: 1 × SP DRIVER 45 compression driver with horn · SP Audio packaging.
Not included: crossovers, capacitors, speaker cable and brackets, chosen for your car.
Technical specifications
| POWER & LOAD | |
|---|---|
| Rated power (RMS) | 200 W |
| Peak power (MAX) | 400 W |
| Minimum impedance | 4 ohm |
| ACOUSTIC | |
| Sensitivity | 103 dB |
| Frequency range | 500 Hz – 17 kHz |
| Throat diameter | 25 mm (1") |
| MOTOR & MATERIALS | |
| Voice coil diameter | 44.4 mm / 1.75" |
| Winding material | CCAW (aluminium) |
| Magnet | 15 oz |
| DIMENSIONS & PACKAGING | |
| Overall diameter | 115 mm (4.5") |
| Depth | 145 mm (5.7") |
| Net weight | 1.55 kg |
| Shipping weight (1 pc) | 1.6 kg |
| Shipping box (1 pc) | 12.5 × 12.5 × 15.5 cm |
| Sold as | Single unit · horn included |
MANUFACTURER’S LABORATORY DATA · PEAK OR “BURST” FIGURES USED IN SOME MARKETS ARE NOT RMS AND ARE NOT LISTED
Complete the system
Before you install it
- It always needs a crossover. Never full range. A compression driver wired straight to the amplifier does not survive. Use a crossover, or at the very least a capacitor in series.
- Do not cross below 500 Hz. 500 Hz is the lowest frequency this driver is rated for. Going under it, at any power, is the fastest way to tear the diaphragm.
- Do not go below 4 ohm per channel. 4 ohm is the minimum load. Two drivers in parallel on one channel give 2 ohm: most amplifiers will heat up or go into protection.
- Aim the horn, then bring the gain up slowly. Point it at the listener and raise the level step by step. Clipping kills compression drivers far more often than power does.
Questions installers ask
spaudio@spaudio.it · +39 340 807 8778
Accepted payment methods
Visa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna
SP Audio — Super Power Audio. Designed in Italy by Audiocar Import & Export SRLS, Milano, official SP Audio distributor for Europe.