Input: 2.83 volts measured at 1 Meter
Belfast 820













Elevate your guitar sound with the Belfast 820 by ToneSpeak, delivering articulate clarity and the classic British tonal character that guitarists crave. Expertly crafted, this speaker offers an expressive sonic profile—open, well-defined lows, smooth and warm mids, and shimmering, articulate highs, ideal for making your lead lines soar.
Designed with a powerful 10-ounce ferrite magnet and a high-performance 1-inch copper voice coil on a sturdy Kraft paper former, the Belfast 820 ensures exceptional responsiveness and tonal accuracy. Its high sensitivity rating of 97 dB SPL means your playing cuts through clearly, delivering impactful sound whether you're on stage or in the studio.
Installation is effortless, thanks to dual-lug terminals for straightforward connectivity, all housed within a robust steel basket that guarantees durability and consistent performance.
Key Features:
- 8-inch (203 mm), 20-Watt power handling at 4 Ω impedance
- High sensitivity (97 dB SPL) for standout projection
- Premium paper composite cone delivering crisp British-style clarity
- Robust 10 oz. ferrite magnet for dynamic responsiveness
- Reliable 1” copper voice coil with Kraft paper former
- Solid, steel basket construction for dependable stage and studio use
Bring your sound to life with defined precision and authentic British tone—choose the Belfast 820 by ToneSpeak.
sensitivity & impedance curves
Input: 2.83 volts measured at 1 Meter
Where to buy
Canada
germany
japan
general specifications
parameter | value |
---|---|
Nominal Diameter (in & mm) | 8" (203 mm) |
Nominal Impedance (Z) (Ω) | |
Rated Power IEC268-5 (W) | 20 |
Program Power (W) | |
Magnet Weight (g) | 284 |
Voice Coil Diameter (mm) | 25 |
Sensitivity (dB SPL) | 97 |
Frequency Range (Hz) | 88 - 11000 |
small signal parameters
parameter | value |
---|---|
Resonant Frequency (Fs) (Hz) +/- 15% | 155 |
DC Resistance (Re) (Ω) | 3.4 |
Voice Coil Inductance (Le) (mH) | 0.12 |
Moving Mass (Mms) (gm) | 9.22 |
Suspension Compliance (Cms) (mm/N) | 0.11 |
Motor Force Factor (BL) (T•M) | 4.17 |
Mechanical Q Factor (Qms) | 15.49 |
Electrical Q Factor (Qes) | 1.77 |
Total Q Factor (Qts) | 1.59 |
Compliance Equivalent Volume (Vas) (L) | 8.31 |
Surface Area of Diaphragm (Sd) (cm²) | 226.98 |
material description
parameter | value |
---|---|
Basket Type | Stamped steel with black powder coating |
Magnet Material | Ferrite |
Cone Body Material | Paper composite |
Cone Surround Material | Paper composite |
Dust Cap Material | Paper |
Spider Material | Cotton |
Voice Coil Wire Material | copper |
Voice Coil Former Material | Kraft paper |
Voice Coil Winding Style | Single layer |