Ray Tubes Select 300BRay Tubes Select 300B 300B triode, introduced 1938. The benchmark SET output tube. Lush mids, graceful highs, cohesive musical bass. Select tier. The Ray Tubes Approach Ray Tubes was created specifically for the audiophile and hi fi market not repurposed industrial tubes, not rebranded commodity production. They partner with manufacturers to build tubes to audio specific specifications, then subject every batch to QC that includes both electrical

Ray Tubes Select 300B

300B triode, introduced 1938. The benchmark SET output tube. Lush mids, graceful highs, cohesive musical bass. Select tier.

The Ray Tubes Approach

Ray Tubes was created specifically for the audiophile and hi-fi market — not repurposed industrial tubes, not rebranded commodity production. They partner with manufacturers to build tubes to audio-specific specifications, then subject every batch to QC that includes both electrical testing and listening evaluation by sound engineers. The Select tier represents the results of that process at an accessible selection standard.

Press Recognition

Ray Tubes is a newer brand without extensive press coverage yet. Our own evaluation and customer feedback in amplifier applications has been consistently positive — comparable in character to better NOS options at a fraction of the cost.

Specifications

• Tube type: 300B
• Production: New production to Ray Tubes specifications
• Quality control: Electrical testing plus listening evaluation
• Tier: Select
• Pricing: Per pair

Questions about matching these to your specific amplifier, or which tier is appropriate for your application? Reach out.