2-Year Local Warranty. Any mention of "us," "we," "our," etc is by Pro-Ject, not AV One. Reference Bookshelf Speaker The Speaker Box 5 E Carbon features a 1” silk dome tweeter, paired with a special 5“ fibre glass carbon composite woofer. Mounted into an ultra-stiff non-resonating MDF cabinet, these chassis deliver an audiophile music reproduction. The speaker delivers an audiophile flat frequency response from 65 to 20.000 Hz with flawless details. It offers a tight powerful bass and keeps the musicality alive. We recommend connecting it with an amplifier with an output power of at least 10 watts per channel. The Stereo Box S3 BT or MaiA S3 are perfect partners for this speaker. The look of the Speaker Box 5 E Carbon is subtle but classy, allowing it to be included in any interior style. It is available in various finishes to match every listener's preferences. Speaker grills in black are included in the box. Features 2-way bass reflex principle Audiophile frequency response Cutting-edge fibre glass carbon composite woofer Low colouration and great transparency Highly detailed sound stage Gold-plated banana terminals Non-resonating MDF cabinet Wall mount sold separately Magnetic speaker grills included Technical Specifications Enclosure type: bass reflex via rear-firing port Recommended amplifier power: 10 to 150 watts Frequency response: 65Hz - 20kHz Nominal impedance: 4 ohms Sensitivity: 86dB (1w /1m) Chassis: 1” silk dome tweeter, 5” carbon fibre glass bass/mid Dimensions: 270 x 165 x 220 mm (HxWxD) Weight: 4.76 kg each