PMC Active Upgrade Kit

PMC Active Upgrade Kit: A Revolution for Your Passive Speakers

The PMC Active Upgrade Kit represents a major evolution for owners of the Twenty5i speaker range. This extension module transforms passive speakers into active systems, offering a significant improvement in sound performance. PMC, renowned for its acoustic expertise, has designed this kit to fully exploit the potential of its high-end speakers.

Advanced Electronic Architecture

At the heart of this kit is a sophisticated amplification module. Each speaker receives a dedicated amplifier of 2 x 100 W RMS, providing 100 W to each driver. This generous power ensures dynamic and effortless sound reproduction, even at high volumes. The module also integrates a high-precision analog active crossover, replacing the original passive crossover. This approach allows for finer control of frequency separation between the bass/midrange drivers and the tweeters.

Seamless Integration and Easy Installation

PMC has designed this kit to perfectly integrate with existing Twenty5i speakers. Installation requires no major modifications to the cabinet, thus preserving the original aesthetics of the speakers. The module attaches to the back of the speaker, replacing the original connection plate. This design allows users to upgrade themselves or have it done by an authorized PMC dealer.

Versatile Connectivity

The active upgrade kit offers flexible connection options. Each module is equipped with an unbalanced RCA input and a balanced XLR input. This dual connectivity allows for easy integration into a wide variety of audio setups, whether it’s a traditional hi-fi system or a professional audio installation. The presence of balanced XLR inputs is particularly appreciated for long cable runs, reducing the risk of interference.

Compatibility and Scalability

The PMC Active Upgrade Kit is compatible with all models in the Twenty5i range, including bookshelf speakers (21i and 22i) and floorstanders (23i and 24i). This versatility allows owners of different models to benefit from the advantages of active amplification. Moreover, this modular approach offers an interesting upgrade path for audiophiles wishing to enhance their system without completely replacing their speakers.

Technical Specifications

Amplification

• Treble: 100 W effective (RMS)
• Bass: 100 W effective (RMS)

Audio Performance

• Frequency response: 46 Hz - 25 kHz
• Effective ATL length: 1.72 m
• Crossover frequency: 1.65 kHz

Dispersion

• Horizontal: 100°
• Vertical: 90°

Electrical Characteristics

• Input impedance: 14 kΩ
• Gain / Sensitivity:
  • Low position: 1 V effective (RMS) = 96.5 dB SPL at 1 m
  • High position: 1 V effective (RMS) = 106.5 dB SPL at 1 m

Connectivity

• Inputs: Balanced XLR, Unbalanced RCA

Physical Characteristics

• Power supply: 90-260 V
• Power connector: IEC C14
• Dimensions (pair): H 130 mm × W 435 mm × D 315 mm
• Weight (pair): 4 kg