Input: 2.83 volts measured at 1 Meter
TSB-12-250













Elevate your bass performance with the TSB-12-250, a 12-inch bass guitar speaker designed to deliver deep, punchy lows with excellent clarity and responsiveness. Engineered with a 7 oz. neodymium magnet, this speaker provides rich, resonant tone while keeping the overall weight low for easy portability.
With 250 watts AES and 500 watts program power handling, the TSB-12-250 ensures tight, controlled bass, smooth mids, and articulate highs. Its 2.5-inch inside/outside copper voice coil, wound on a fiberglass former, enhances heat dissipation for consistent performance under demanding conditions. The paper cone with a cloth M-roll surround further refines the balance between warmth and precision.
Key Features:
- 12-inch (304.8 mm) bass guitar speaker with pressed steel frame
- 250 watts AES / 500 watts program power handling
- 7 oz. neodymium magnet for high-powered, lightweight performance
- 2.5-inch inside/outside wound copper voice coil with fiberglass former
- Paper cone with cloth M-roll surround for deep, controlled bass
- High sensitivity (98 dB SPL) for excellent projection
For bassists seeking power, clarity, and portability, the TSB-12-250 delivers a balanced, dynamic tone with the durability needed for any performance.
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) | 12" (305 mm) |
Nominal Impedance (Z) (Ω) | |
Rated Power IEC268-5 (W) | 250 |
Program Power (W) | 500 |
Magnet Weight (g) | 198.4 |
Voice Coil Diameter (mm) | 63.5 |
Sensitivity (dB SPL) | 98 |
Frequency Range (Hz) | 50 -4000 |
small signal parameters
parameter | value |
---|---|
Resonant Frequency (Fs) (Hz) +/- 15% | 45 |
DC Resistance (Re) (Ω) | 5.6 |
Voice Coil Inductance (Le) (mH) | 0.53 |
Moving Mass (Mms) (gm) | 48.4 |
Suspension Compliance (Cms) (mm/N) | 0.26 |
Motor Force Factor (BL) (T•M) | 14.9 |
Mechanical Q Factor (Qms) | 8.54 |
Electrical Q Factor (Qes) | 0.34 |
Total Q Factor (Qts) | 0.33 |
Compliance Equivalent Volume (Vas) (L) | 104.23 |
Surface Area of Diaphragm (Sd) (cm²) | 530.93 |
material description
parameter | value |
---|---|
Basket Type | Pressed steel |
Magnet Material | Neodymium |
Cone Body Material | Paper |
Cone Surround Material | Cloth |
Dust Cap Material | Felt |
Spider Material | |
Voice Coil Wire Material | Copper |
Voice Coil Former Material | Fiberglass |
Voice Coil Winding Style | Inside / Outside |