Why Build Your Own or Buy Bespoke Speaker Cabinets?

In HiFi audio, few pursuits offer as many improvements as building your own or commissioning bespoke speaker cabinets. While there are numerous off-the-shelf speaker options available, these rarely cater to the specific requirements of enthusiasts seeking to integrate vintage or high efficiency drivers into their systems. DIY or bespoke speaker cabinets are a good option, when you’re pursuing higher efficiency, lower distortion, and the unique character of vintage audio components.

Many vintage drivers, such as the JBL 2220B, Altec 515, or Tannoy’s dual-concentric units, are known for their efficiency and low distortion. Designed during an era when amplifiers offered relatively low power output, these drivers prioritize sensitivity and accuracy. However, their performance often depends heavily on the enclosure. Vintage drivers frequently require larger, specialized cabinets than modern designs to reach their full potential. Off-the-shelf cabinets rarely accommodate these requirements, making custom solutions almost necessary.

Higher efficiency means more sound pressure level (SPL) for every watt of amplifier power, which translates to several key benefits:

1. Dynamic Range: High-efficiency speakers handle micro-dynamics and transients with ease, delivering a more realistic listening experience.
2. Compatibility with Lower Power Amplifiers: These drivers pair well with low-wattage tube amplifiers.
3. Lower Distortion: With less mechanical strain on the driver, high-efficiency speakers maintain clarity and fidelity even at higher volumes.

The downside to achieving higher efficiency and lower distortion is size. Modern speaker designs tend toward smaller cabinets for cost, aesthetics, and efficiency. Bespoke speakers allow for custom, now uncommon, speaker sizes that cater to high efficiency applications. Cabinets can be designed to work with both vintage drivers and more modern high-efficiency drivers. Large cabinets are necessary to provide the proper loading for vintage drivers. Horn-loaded designs, folded horns, or bass reflex systems optimized for vintage units can be much bigger than modern speakers. However, these cabinets allow for excellent bass extension and smooth midrange performance. For many, the benefits outweigh the physical footprint.

Building your own or commissioning bespoke cabinets offers flexibility. You can tailor the design to:

• Match the T/S parameters of your vintage drivers (e.g., Vas, Qts, Fs).
• Achieve specific tonal characteristics, such as a warm midrange or extended bass.
• Incorporate aesthetic elements that align with your personal taste.

Modern simulation tools make it easier to model enclosures and predict and measure performance, allowing builders like Cathode Bias, to create cabinets with precision.

While building your own cabinets can be rewarding, it’s not for everyone. A bespoke builder can bring expertise and access to specialized tools that might be beyond the reach of the average DIY enthusiast.

If you have an questions or are interested in having us build speaker cabinets for your system, please feel free to reach out to baus@cathodebias.com.