Description
The SB Acoustics Satori TW29BN is a 29 mm beryllium dome tweeter from the SATORI flagship series, widely recognized as one of the best dome tweeters available today. It combines cutting-edge materials, ultra-low distortion, and effortless detail retrieval—a tweeter built for reference-grade audiophile speakers.
Features
- Beryllium dome for non-resonant high frequency extension
- Two part aluminium faceplate with integrated mechanical decoupling
- Dual balanced compression chambers for improved dynamics
- Dual copper caps for absolute minimum voice coil inductance and minimum phase shift
- High saturation neodymium motor system with T-shaped pole piece for lower distortion
- Non-reflective cast aluminium chamber with optimized damping for improved dynamics
- Shallow flow optimized magnet structure for optimum coupling to rear chamber
- CCAW voice coil for low moving mass
- Long life silver lead wires
- Low resonance frequency for extended range
Specs
- Nominal Impedance 4 Ω
- DC resistance, Re 3.0 Ω
- Voice coil inductance, Le 0.02 mH
- Effective piston area, Sd 9.6 cm2
- Voice coil diameter 29.0 mm
- Voice coil height 2.0 mm
- Air gap height 2.5 mm
- Linear coil travel (p-p) 0.5 mm
- Moving mass incl. air, Mms 0.46 g
- Free air resonance, Fs 700 Hz
- Sensitivity (2.83 V / 1 m) 95 dB
- Mechanical Q-factor, Qms 2.1
- Electrical Q-factor, Qes 0.60
- Total Q-factor, Qts 0.46
- Force factor, Bl 3.1 Tm
- Rated power handling* 80 W
- Magnetic flux density 1.5 T
- Magnet weight 0.11 kg
- Net weight 0.41 kg
* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.
✅ Why It’s Exceptional
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True beryllium dome = extreme stiffness + ultra-light mass → no breakup in the audible band, near-perfect piston behavior
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Super low Fs (~500 Hz) = excellent for low crossover points (~1.5–1.8 kHz)
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No ferrofluid = more open, less damped sound while maintaining control through mechanical design
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Neodymium magnet = compact, strong, linear motor
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Rear chamber = flattens impedance curve and improves integration
🎧 Sound Signature
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Neutral – absolutely clean, accurate highs without added brightness
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Ultra-resolving – reveals every nuance, texture, and ambient cue
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Non-fatiguing – stays smooth at high volume, never harsh
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Massive soundstage – excellent off-axis behavior and imaging
🛠️ Crossover Guidelines
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Recommended Crossover Point: 1.5–2.2 kHz
Use 4th-order acoustic slopes for lowest crossover points -
Works flawlessly with:
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Satori MW16P / MW19P – papyrus cones (natural sound)
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Satori MW16TX / MW19TX – Textreme carbon cones (fast + detailed)
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SB17NBAC / SB15NBAC – aluminum cones (analytical synergy)
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⚖️ Compared to Other High-End Tweeters
| Feature | TW29BN (Satori) | SB29BAC-C000-4 | TW29RN-B (Textile) |
|---|---|---|---|
| Dome Material | Beryllium | Beryllium | Textile ring dome |
| Fs | ~500 Hz | ~500–600 Hz | ~600 Hz |
| Sound | Transparent, neutral | Detailed, slightly lively | Smooth, natural |
| Magnet | Neodymium | Ferrite | Neodymium |
| Price Tier | Top-tier / flagship | Premium (non-Satori) | High-end, soft dome |
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