Match UP T1MB-FRT – Tweeter upgrade kit for Mercedes vehicles
The UP T1MB-FRT is an exclusively developed tweeter upgrade kit in the MATCH UPGRADE range by Audiotec Fischer. It replaces the factory tweeters in a wide range of Mercedes models – C-Class, E-Class, GLC, GLE, GLS and S-Class – and is aimed at owners who want better treble quality than the stock speaker setup provides.
The kit is adapted to the original Mercedes mounting points, uses vehicle-specific coded connectors and is tuned to the acoustics of the Mercedes cabin. A 25 mm silk dome driven by a high-efficiency neodymium magnet is designed for precision, resolution and neutral reproduction, and the level can be adjusted in three steps to suit personal preference and the different Mercedes sound systems. Best results are achieved with one of Audiotec Fischer’s DSP amplifiers.
Key Features
- Dedicated tweeter kit: developed exclusively for Mercedes vehicles.
- 25 mm silk dome: coated silk dome for precise, finely resolved highs.
- Neodymium magnet: high-efficiency magnet system.
- Optimised frequency response: perfectly matched components.
- Plug & Play crossover: separate crossover with 6 dB slope included.
- 3-stage level adjustment: adapts the tweeter to taste and to different Mercedes sound systems.
- Original mounting points: tailored to the factory tweeter positions.
- Coded connectors: vehicle-specific plugs for easy installation.
- Higher power handling: 60 W RMS / 120 W max at 4 Ω.
- Broad vehicle coverage: from C-Class 205/206 to S-Class W223.
Drivers & Construction
Each tweeter uses a coated silk dome (25 mm) with a neodymium magnet and has an outer diameter of 43.1 mm (1.70″). The set consists of two tweeters (listed in the scope of delivery as UP S1MB-FRT) and two separate crossovers.
Acoustic Performance
- Power handling: 60 W RMS / 120 W max.
- Impedance: 4 Ω.
- Sensitivity: 89 dB (1 W / 1 m).
- Frequency response: 3,500 Hz – 25,000 Hz.
Crossover
The supplied plug & play crossovers are separate units with a 6 dB slope and 3-stage tweeter level adjustment. Crossover dimensions: 70 x 35 x 19.7 mm (2.76 x 1.38 x 0.78″).
Installation Notes
- Installation diameter: 39 mm (1.54″).
- Installation depth: 23.7 mm (0.93″).
- Positions: front door and rear door.
- Original cover required: for positions marked with * an original cover including the tweeter mounting fixture is required.
Compatible vehicles as listed by the manufacturer (status December 2021):
- C-Class: Convertible A205 (from 2016) – front door*, rear door*; Coupe C205 (from 2015) – front door*, rear door*; Sedan W205 (2014–2021), T-Model S205 (2014–2021), Sedan W206 (from 2021), T-Model S206 (from 2021) – 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*
- GLE: SUV V167 (from 2018) – front door, rear door*
- GLS: SUV X167 (from 2019) – front door, rear door*
- S-Class: Sedan W222 (2013–2020), Sedan W223 (from 2020) – front door, rear door
Technical Specifications
| Power RMS / max. | 60 / 120 Watts |
| Frequency response | 3,500 Hz – 25,000 Hz |
| Impedance | 4 Ω |
| Efficiency 1W / 1m | 89 dB |
| Cone material | TW: Coated silk dome M: – W: – |
| Crossover | Separate, 6 dB slope with 3-stage tweeter level adjustment |
| Outer diameter | TW: 43.1 mm / 1.70″ M: – W: – |
| Installation diameter | TW: 39 mm / 1.54″ M: – W: – |
| Installation depth | TW: 23,7 mm / 0.93″ M: – W: – |
| Dimensions crossover | 70 x 35 x 19.7 mm / 2.76 x 1.38 x 0.78″ |
Scope of Delivery
2 x Tweeter UP S1MB-FRT
2 x Crossover
1 x Instruction manual
