Match UP C42MB-FRT

Match UP C42MB-FRT – 2-way component upgrade system for Mercedes vehicles

The UP C42MB-FRT belongs to the MATCH UPGRADE line from Audiotec Fischer, a range of speakers developed exclusively as direct replacements for factory Mercedes speakers. This 2-way component set is intended for the door positions of the C-Class (205), E-Class (238/213), GLC (253) and S-Class (W222) and targets customers who find the standard speaker setup lacking.

Compared to the OEM speakers, the system is designed to deliver more precision and dynamics across the whole frequency range, with detailed high-frequency reproduction from a 25 mm silk dome tweeter. Sound tuning is optimised specifically for Mercedes interiors, power handling is significantly higher than stock, and the tweeter level can be set in three steps. Audiotec Fischer states the set shows its full dynamic potential when driven by one of its DSP amplifiers.

Key Features

• Mercedes-specific tuning: sound characteristics optimised for Mercedes vehicles.
• Higher power handling: 60 W RMS / 120 W max, significantly more than the factory speakers according to the manufacturer.
• 25 mm silk dome tweeter: coated silk dome for detailed, well-resolved treble.
• 3-stage tweeter level: adjustable to personal taste on the crossover.
• Separate crossover: 6 dB slope, supplied as two units.
• Exclusive baskets: developed specifically for Mercedes mounting positions.
• Car-specific connectors: plug-in connection for straightforward installation.
• Coated paper woofer cone: used for the mid/bass driver.
• System expandable: combinable with other MATCH UPGRADE components such as DSP amplifiers.
• Complete set: two tweeters (UP S1MB-FRT), two mid/woofers (UP S4MB-FRT), two crossovers and a manual.

Drivers & Construction

The kit pairs a coated silk dome tweeter (25 mm dome) with a mid/woofer using a coated paper cone; there is no separate midrange driver. The tweeter has an outer diameter of 43.1 mm (1.70″), while the woofer has an outer diameter of 126 mm (4.96″). Both use Mercedes-specific baskets and car-specific connectors.

Acoustic Performance

• Power handling: 60 W RMS / 120 W max.
• Impedance: 4 Ω.
• Sensitivity: 89 dB (1 W / 1 m).
• Frequency response: 90 Hz – 25,000 Hz.

Crossover

Two separate passive crossovers with a 6 dB slope are included. Each provides a 3-stage tweeter level adjustment, allowing the high-frequency balance to be adapted to the listener and the vehicle.

Installation Notes

• Tweeter: installation diameter 39 mm (1.54″), installation depth 23.7 mm (0.93″).
• Woofer: installation diameter 90.8 mm (3.57″), installation depth 34.3 mm (1.35″).
• Positions: front door and rear door, depending on the vehicle (see list below).
• Burmester parts: for positions marked with * the cover including the tweeter mounting fixture from the Mercedes Burmester sound system is required.

Compatible vehicles as listed by the manufacturer (status May 2019):

• C-Class: Convertible A205 (from 2016) – front door*, rear door*; Coupe C205 (from 2015) – front door*, rear door*; Sedan W205 (from 2014) – front door, rear door*; T-Model S205 (from 2014) – front door, rear door*
• E-Class: Convertible A238 (from 2017), Coupe C238 (from 2017), Sedan W213 (from 2016), T-Model S213 (from 2016) – front door, rear door*
• GLC: SUV X253 (from 2015), SUV Coupe C253 (from 2015) – front door, rear door*
• S-Class: Sedan W222 (from 2013) – front door, rear door*

Technical Specifications

Scope of Delivery

2 x Tweeter MATCH UP S1MB-FRT
2 x Midwoofer MATCH UP S4MB-FRT
2 x Crossover
1 x Instruction manual