Marshall Kilburn II Portable Bluetooth Speaker:
🎵 Audio & Sound
- Drivers & Amplification: One 4" woofer + two ¾" dome tweeters, each driven by separate Class D amps (20W for woofer + 8W × 2 for tweeters)
- Output / SPL: Total output ~ 36 W; peak sound pressure ~ 100.4 dB @ 1 m
- Frequency Response: 52 Hz – 20,000 Hz
- Sound Tuning: Top-panel analog knobs for Bass, Treble, and Volume for realtime adjustment
- Dispersion / Imaging: Built for “True Stereophonic / multi‑directional” sound to provide an immersive field rather than a narrow directional beam
📡 Connectivity & Controls
- Bluetooth: Version 5.0 with aptX codec support (for better wireless fidelity)
- Multi‑Host / Device Switching: Can maintain and swap between two paired devices seamlessly
- Wired Input: 3.5 mm AUX input for devices without Bluetooth or when you prefer wired connection
- Top Panel Controls: Dedicated knobs / buttons for Power, Volume (rotary), Bass, Treble, Bluetooth pairing, and battery indicator
🔋 Power, Battery & Portability
- Playtime: Rated at “20+ hours” of playback on a full charge
- Quick Charge: ~20 minutes of charging yields ~3 hours of playtime; full charge in ~2.5 hours
- Battery Indicator: LED indicator on the top panel to show remaining battery level
- Weight & Dimensions: ~2.5 kg ; ~243 × 162 × 140 mm (W × H × D)
- Portability Features: Guitar‑style strap for carrying, flush‑mounted corner caps for durability
💧 Durability & Build
- Water Resistance: Rated IPX2 — resistant to light splashes (not waterproof for submersion)
- Exterior Design: Classic Marshall styling — vinyl wrap, metal grille, and vintage aesthetic with the iconic logo
⚠️ User Feedback & Caveats
- Sleep / Power-saving issue: Some users report the speaker “goes to sleep” / mutes after a few seconds of inactivity and skips first notes when resuming via AUX
- Longevity / Reliability: Reports of units failing after weeks/months of use, issues with Bluetooth connectivity, battery degradation.
- Latency with AUX: Some claim that latency over wired input is impressively low (good for instruments), but that transitioning from standby sometimes causes first few notes to cut off.