Ray Tubes Select 12AU7Ray Tubes Select 12AU7 12AU7 dual triode, 9 pin. Medium gain general purpose triode. Common in driver and buffer stages. 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

Ray Tubes Select 12AU7

12AU7 dual triode, 9-pin. Medium-gain general-purpose triode. Common in driver and buffer stages. 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: 12AU7
• 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.