REL S/550 — Hi‑Fi Subwoofer

🧾 Overview

The REL S/550 is a compact but powerful Serie S sub‑bass system designed to deliver deep, fast, and musical low frequencies for music and home theater. Built around a re‑engineered 10" CarbonAlloy™ active driver and a 12" down‑firing passive radiator, the S/550 pairs high transient speed with 550 watts of Pure Class‑D amplification to add authority, scale and control to mid‑sized listening rooms.

✅ Key Features

• ✅ 550 watts (RMS) Pure Class‑D amplifier for ample headroom and low distortion
• ✅ 10" CarbonAlloy™ long‑throw active driver paired with a 12" Carbon/Carbon passive radiator
• ✅ Low frequency extension to −6 dB at 19 Hz (in‑room)
• ✅ Multiple inputs: High‑Level Neutrik® Speakon®, Left/Right Low‑Level RCA, .1/LFE RCA and XLR
• ✅ User controls: Gain, Phase (0/180°), and Crossover (20–120 Hz) for tight integration
• ✅ Protection: Fully electronic SET‑SAFE™ protection, DC fault and short‑output protection
• ✅ Wireless ready: REL AirShip (sold separately) compatibility for wireless operation

📦 What’s in the Box

• 📦 REL Serie S/550 Subwoofer
• 🔌 Mains power cord
• 🔌 Neutrik® Speakon interconnect (10 metres nominal)
• 📘 User manual and warranty information
• 🧰 Line array mounting hardware (if applicable)
• 🧵 Cloth grille (standard). Premium wood grille sold separately.

🔄 Compatibility

Works seamlessly with two‑channel separates, integrated amplifiers, AV receivers and modern streaming preamps. Use the High‑Level Speakon® connection to lock tonal and timing characteristics to your main speakers, or the Low‑Level RCA / .1 LFE XLR for conventional sub outputs. Compatible with REL AirShip wireless receiver (sold separately) for tidy wireless setups.

📦✈️ Shipping & Returns

• 📦 Insured worldwide delivery — tracked shipments
• 🔄 14‑day return policy (subject to condition & packaging)
• 🛡️ Manufacturer warranty (check local terms) — standard REL warranty applies
• 📌 Shipping ETA suggestion: Baltics 2–4 days | Europe 2–8 days — local carrier dependent

📝 Reviews

⚠️ Warning

⚠️ Audiophile warning: Prolonged listening at loud levels may lead to sudden urges to rearrange your speakers, purchase extra cables you don’t need, and politely correct strangers about crossover points. Listen responsibly.