TSB-12-150

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TSB-12-150TSB-12-150TSB-12-150TSB-12-150
back side of the TSB-12-150
front side of the TSB-12-150
terminal of the TSB-12-150
side of the TSB-12-150
ToneSpeak's seven year warranty logo
RoHS-Compliant logo
Made-in-Minnesota logo
ISO 9001-2015 certification logo
Klippel-verified logo

Hold down the low end with confidence using the TSB-12-150, a 12-inch bass guitar speaker designed for players who demand precision and power. Its 4 oz. neodymium magnet provides a fast transient response, enhancing the clarity and definition of each bass note while keeping the overall weight low for easy portability.

With 150 watts AES and 300 watts program power handling, the TSB-12-150 delivers tight, responsive lows, natural mids, and smooth highs. A 2-inch copper voice coil, wound on a fiberglass former, ensures excellent durability and heat dissipation, making it a reliable choice for consistent performance. The paper cone with a cloth M-roll surround enhances warmth and resonance, giving your tone both depth and articulation.

Key Features:

  • 12-inch (305 mm) bass guitar speaker with pressed steel frame
  • 150 watts AES / 300 watts program power handling
  • 4 oz. neodymium magnet for lightweight, high-efficiency performance
  • 2-inch inside/outside wound copper voice coil with fiberglass former
  • Paper cone with cloth M-roll surround for deep, defined bass
  • High sensitivity (97.2 dB SPL) for excellent projection

For bassists seeking a speaker that combines portability with rich, powerful tone, the TSB-12-150 delivers the ideal balance of warmth, depth, and responsiveness.

sensitivity & impedance curves

Input: 2.83 volts measured at 1 Meter

frequency and impedance response graph of the ToneSpeak TSB-12-150
0 deg response
30 deg response
60 deg response
impedance

general specifications

Nominal Diameter (in & mm)12" (305 mm)
Nominal Impedance (Z) (Ω)
Rated Power IEC268-5 (W)150
Program Power (W)300
Magnet Weight (g)113.4
Voice Coil Diameter (mm)50.8
Sensitivity (dB SPL)97.2
Frequency Range (Hz)50 - 5000

small signal parameters

Resonant Frequency (Fs) (Hz) +/- 15%51
DC Resistance (Re) (Ω)5.5
Voice Coil Inductance (Le) (mH)0.5
Moving Mass (Mms) (gm)42.4
Suspension Compliance (Cms) (mm/N)0.24
Motor Force Factor (BL) (T•M)11.9
Mechanical Q Factor (Qms)12.17
Electrical Q Factor (Qes)0.53
Total Q Factor (Qts)0.5
Compliance Equivalent Volume (Vas) (L)93.06
Surface Area of Diaphragm (Sd) (cm²)530.93

material description

Basket TypePressed steel
Magnet MaterialNeodymium
Cone Body MaterialPaper
Cone Surround MaterialCloth
Dust Cap MaterialFelt
Spider Material
Voice Coil Wire MaterialCopper
Voice Coil Former MaterialFiberglass
Voice Coil Winding StyleInside / Outside

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