Acelec Model One Loudspeakers - USED

We have just traded in a beautiful pair of the Acelec Model One Loudspeakers and stands. 

Beautiful condition and the price includes the stands. Aluminium cabinets are extremely unique and add a touch of elegance. 

The Acelec Model One Loudspeakers are high-performance standmount loudspeakers designed for audiophiles seeking exceptional clarity, precision, and a natural soundstage, particularly in small to medium-sized rooms. Here are the key points:

RRP: £6,500 without stands

1. Uncompromising Cabinet Design:

• Bituminised Aluminum Enclosure: The most striking feature is its cabinet, constructed from 15mm thick bituminised aluminum panels. This material choice, combined with specialised internal damping and a unique rubberised glue for bonding, aims for extreme rigidity and minimal resonance. The goal is to eliminate cabinet coloration and "ringing" effects, allowing the drivers to perform without interference.
   
• Heavy and Inert: Reviewers consistently note the impressive weight (17kg/37.5lb per speaker) for their compact size, reinforcing their inert and non-resonant nature.
  
  

2. High-Quality Drivers:

• Scan-Speak Bass/Mid Transducer: Features a 15cm (5.9") Scan-Speak bass/mid driver with sliced-paper cones.
   
• Mundorf AMT Tweeter: Utilizes an 18mm Mundorf Air Motion Transformer (AMT) tweeter, known for its detail and extension. This is a special version, specifically optimized for improved impulse behavior.

3. Advanced Crossover Design:

• Dual-Slope Filter: Employs a unique "dual-slope" crossover design, which acts as a first-order filter around the 1.8 kHz crossover point for optimal phase behavior, then transitions to a second-order slope further away from the crossover frequency. This protects the tweeter and helps to bypass woofer breakup modes, resulting in a very smooth frequency response.
   
• Phase Coherence: A significant design goal was to achieve excellent phase response and time alignment between the drivers, contributing to a coherent and detailed soundstage.
  
   

4. Sonic Performance Highlights:

• Exceptional Transparency and Low Coloration: Widely praised for their "uncanny resolution" and "vanishing levels of coloration," providing a "clean and precise window into the recorded proceedings." Many reviews state they have the lowest cabinet coloration heard in their experience.
  
  
• Detailed and Unetched Highs: Deliver supreme detail without sounding etched or brittle.
   
• Precise and Dynamic Bass: Offer surprisingly well-defined, controlled, and physically impactful bass for their size, reaching down to 45Hz. They can be port-plugged for boundary placement.
   
• Refined Soundstage and Imaging: Create a wide, deep, and precisely layered soundstage with excellent imaging, allowing instruments and vocals to appear against an "ultra quiet black background."
   
• Lifelike Vocals and Textures: Render vocals with natural warmth and precision, and exhibit remarkable texture on instruments, particularly strings.
   
• Engaging and Musical: Despite their analytical precision, they are described as highly musical, capable of playing all genres with equal facility and fun.
  
  

5. Amplifier Friendly (Relatively):

• Simple Load: Designed to be an "easy load" for a wide range of amplifiers, including both delicate tube and powerful solid-state designs, despite their 84dB sensitivity. Nominal impedance is 8 ohms (minimum 5 ohms at 375 Hz).
  
  

6. Placement Flexibility:

• While optimal performance is achieved free-standing, they are designed to perform well even when placed closer to room boundaries, and foam bungs are provided for the rear port to tame bass if needed
  

In essence, the Acelec Model One is a meticulously engineered compact loudspeaker that prioritizes cabinet inertness and driver integration to achieve an exceptionally transparent, detailed, and musically engaging sound.