{"product_id":"box-x4-mm-phono-preamp-turntable-headphone-amp-vacuum-tube-hi-fi","title":"BOX X4 MM Phono Preamp Turntable Headphone Amp Vacuum Tube Hi-Fi","description":"\u003cdiv\u003e\n ✅ Pro-Grade MM Phono Stage\n\u003c\/div\u003e\n\u003cdiv\u003e\n Upgraded from previous models, the BOX X4 delivers audiophile clarity with a low-noise JAN 5725W vacuum tube preamp and built-in grounding terminal to eliminate hum and protect your vinyl setup.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n ✨ Dual-Output Flexibility\n\u003c\/div\u003e\n\u003cdiv\u003e\n Switch seamlessly between RCA line-level output for amplifiers and 3.5mm headphone output for private listening — perfect for late-night vinyl sessions.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n 🌟 Tube Rolling Customization\n\u003c\/div\u003e\n\u003cdiv\u003e\n Swap the stock tube with 6K4, 6J1, GE5654, 6AK5 (sold separately) to explore different tonal profiles, giving vinyl enthusiasts full control over their sound.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n ✅ Active Bass \u0026amp; Treble Controls\n\u003c\/div\u003e\n\u003cdiv\u003e\n Fine-tune records with ±10dB bass\/treble EQ, enhancing warmth for vintage LPs or detail for modern pressings while preserving original analog character.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n 📦 Complete Kit \u0026amp; Warranty\n\u003c\/div\u003e\n\u003cdiv\u003e\n Includes BOX X4 preamp, DC 12V power supply, user manual, plus a 24-month warranty and responsive customer support. Compact 10.2 x 5.1 x 2.5 cm design fits any setup.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n 🎁 Perfect for Vinyl Enthusiasts\n\u003c\/div\u003e\n\u003cdiv\u003e\n Ideal for home Hi-Fi setups, passive speakers, or headphone listening — experience high-fidelity analog playback with ease.\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n ✨ Easy Monthly Payments\n\u003c\/div\u003e\n\u003cdiv\u003e\n Pay with Klarna or PayPal Credit for flexible installments and enjoy premium vinyl sound without upfront cost.\n\u003c\/div\u003e\n","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57807370944896,"sku":null,"price":269.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3907\/9040\/files\/10_cba5161c-7e52-4e9d-af59-d95f714b1319.jpg?v=1775311878","url":"https:\/\/kwikley.com\/products\/box-x4-mm-phono-preamp-turntable-headphone-amp-vacuum-tube-hi-fi","provider":"Kwikley","version":"1.0","type":"link"}