GEN-300B Update #4: Processing

Layer Audio Design
Apr 2
2 min read

Everything is moving along nicely on our end: initial QC rounds are complete, and key components are now in production. At the same time, we wanted to share a few updates on the upgrade options as things continue to take shape.

Glass Protector

We’re still in the process of sourcing the glass casing. We initially reached out to several U.S. manufacturers, but low-volume production costs came in significantly higher than expected. As a result, we’re now working with alternative suppliers to find a better balance between quality and cost.

300B Tubes

We’ve recently connected with a few very interesting tube manufacturers, including some exploring what they describe as “new technology” in 300B tubes. We’re still evaluating what that means in practice, but some of the ideas are genuinely intriguing from an engineering standpoint.

That said, upgrade tubes won’t be finalized until the first batch of amplifiers is complete -- we prefer to evaluate everything within the actual amp, rather than relying on standalone specs.

Shows

We’ll be attending THE Show California (June 26–28) and CanJam SoCal (August 29–30), together with Analog Sense. We’re also planning to bring a working prototype of our DAC (currently in R&D). Hope to see many of you there!

Listening tryouts— Cuprum Isolation Feet

We're considering initiating a listening trial focused on our isolation feet.

Units can be provided for evaluation within your own system.

We believe this product is highly effective, particularly given its price.

We think it should be introduced to more systems.

If you're interested in trying them in your setup, please reach out to us!

A Brief Note on the Design

Unlike the majority of products on the market, especially within this price range, Cuprum aims not to isolate but to channel energy, dissipate it, and prevent it from re-entering the system (In some cases, isolation is not beneficial, as internal energy has no outlet.), while also blocking external vibrations from entering.

The heart of this design is a unique copper-based alloy.

The selection is not for aesthetics. It is completely determined by its performance under vibration, its energy conduction capability, and its excellent internal damping.

To ensure optimal performance, the copper surface must be in direct physical contact with the equipment, not the equipment feet. This uninterrupted contact is crucial for efficient energy transfer.

Each foot is designed to support a load of 2–5 kg (4.6–11 lbs) for best results. A set of four can support a total system weight of 8–20 kg (18.4–44 lbs) (each set includes four feet).

Staying within this weight range guarantees that the damping layer operates as intended.

Do not exceed the maximum load limit, as too much weight can cause permanent deformation of the damping material.