Preamplifier Preamp Tube Board DIY Kit 6J1 Preamp Tube Board Preamplifier Headphone Amplifier
【6J1 ELECTRON TUBE】Preamplifier adopt 6J1 electron tube, classic collocation. This is a preamplifier + headphone amplifier that can be used with a post-amplifier or an active speaker, or it can be used with headphones. 【POWER SUPPLY】Preamplifier adopts 12V DC power supply, internal stable boost to 100V to ensure the performance of the tube. The headset can be pushed to 300 ohms, the general recommendation is 16-150 ohms. 【WARM AND MELLOW MUSIC SOUND】A cost-effective preamplifier with warm, mellow, sweet and transparent sound. The sound of this board is warm, mellow, sweet and transparent, and full of music.
- ASIN
- B08DG2P3X8
- Embedding
- CLIP ViT-L/14 · 768d
- Distance metric
- cosine
- Doc fetch
- 2mscache hitGET /v2/namespaces/amazon-products/documents/B08DG2P3X8
- Similar query
- 29msnearest_to_id → /query
Doc fetch goes through Layer's Aerospike pull-through cache; cache hit served the row without touching turbopuffer. The similar query asks Layer for nearest neighbors of the stored product vector — queries don't go through the doc cache, so no cache header is set.
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