Match UP X4BMW-CTR.3 – 2-way coaxial center upgrade speaker for BMW
The Match UP X4BMW-CTR.3 is the center-channel member of Audiotec Fischer’s MATCH UPGRADE speaker range for BMW, created for listeners who find the basic factory speaker setup lacking. It is a 2-way coaxial center speaker with a car-specific basket, developed exclusively for BMW vehicles and supplied as a single unit.
The center speaker improves sound staging for both the driver and the front passenger and is voiced to match the tonal character of the other MATCH UPGRADE speakers. Its 13 mm silk dome tweeter delivers finely resolved treble, and the result is a coherent soundstage that clearly outperforms the OEM setup in resolution, precision and dynamics. Its full potential is reached with a MATCH DSP amplifier offering center management.
Key Features
- BMW-only development: designed exclusively for BMW vehicles.
- Center-channel upgrade: improves sound staging for driver and front passenger alike.
- Tonal match: voiced to match the other MATCH UPGRADE speakers for a cohesive soundstage.
- Car-specific basket and connector: for easy installation in the original position.
- 2-way coaxial design: optimized frequency response from a single compact unit.
- 13 mm silk dome tweeter: coated silk dome for high treble resolution.
- 100 mm coated paper woofer: handles the lower frequency range.
- Inline crossover included: for operation with the factory radio.
- Center management ready: best results with a MATCH DSP amplifier featuring center management.
- System compatibility: combinable with other MATCH UPGRADE components such as DSP amplifiers.
Drivers & Construction
A 13 mm coated silk dome tweeter is mounted coaxially in front of a 100 mm coated paper woofer, all on a BMW-specific basket with matching connector. One inline crossover is included.
Acoustic Performance
- Power handling: 60 W RMS / 120 W max.
- Impedance: 4 Ω
- Sensitivity: 90 dB (1 W / 1 m)
- Frequency response: 100 Hz – 25,000 Hz
Crossover
The tweeter uses an integrated 6 dB filter; the woofer is filtered by a separate inline crossover with a 6 dB slope, intended for operation with the OE radio.
Installation Notes
- Dimensions: installation diameter 101.5 mm (4.00″), installation depth 37.8 mm (1.50″).
- Vehicle fit: BMW vehicles with a center speaker position; refer to the manufacturer’s BMW speaker compatibility chart for exact applications.
- Recommended amplification: a MATCH DSP amplifier with center management.
Technical Specifications
| Power RMS / max. | 60 / 120 Watts |
| Frequency response | 100 Hz – 25,000 Hz |
| Impedance | 4 Ω |
| Efficiency 1 W / 1 m | 90 dB |
| Cone material | TW: Coated silk dome M: – W: Coated paper |
| Diameter TW / W | 13 mm / 100 mm; 0.52″ / 4″ |
| Crossover | TW: Integrated, 6 dB slope W: Separate, 6 dB slope |
| Installation diameter | 101.5 mm / 4.00″ |
| Installation depth | 37.8 mm / 1.50″ |
Scope of Delivery
1 x Center speaker MATCH UP X4BMW-CTR.3
1 x Inline crossover
1 x Instruction manual













