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Memphis 1250 - 12" Guitar Speaker, 50 Watt, 8 Ohm

Memphis 1250 - 12" Guitar Speaker, 50 Watt, 8 Ohm
Ship weight
5.90 kg
Priced per:
8 ohm
Your price:
CDN $174.99
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A ToneSpeak original hemp cone is the basis for this modern American tone.

Now Available!

Hemp cone speakers have become popular for taming bright, harsh, ear-fatiguing amps and guitars.  The warm, woody, smooth, organic qualities of the material are heavily embodied in this speaker.  It’s full and defined in the lows, very natural in the mids, and warm, smooth, and creamy in the highs.  While a darker tone was desired here, the focus was to eliminate the associated muddiness.  This speaker retains good clarity and definition with the gain knob.  It’s the perfect speaker for both the Blues and for country chicken pickin’.

  • 12” speaker
  • 50 Watts
  • 8 ohm
  • 50 oz. magnet
  • 1.75” Voice Coil Diameter
  • Paper Voice Coil Former

ToneSpeak guitar speakers are the result of years and years of the deep-dive for the perfect tone.  Decades of testing, field experience and conversations with elite tone-chasers have all been poured into these fine products.  When you play ToneSpeak, you play the best.

More Information
Brand Name ToneSpeak
Size, Nominal (inch & mm) 12" (305 mm)
Shape of Speaker Round
Speaker Type Guitar Speaker
Application Musical Instruments
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 50 Watts
Frequency Range (Hz) 70 - 5,000
Sensitivity (dB SPL) ¹ 100
Resonant Frequency (Fs) (Hz) 77
DC Resistance (Re) (Ω) 7.1
Voice Coil Inductance (Le) (mH) 0.39
Mechanical Q Factor (Qms) 14.27
Electrical Q Factor (Qes) 0.43
Total Q Factor (Qts) 0.42
Mechanical Resistance (Rms) (kg/s) 0.91
Compliance Equivalent Volume (Vas) (L) 65.3
Suspension Compliance (Cms) (mm/N) 0.16
Surface Area of Diaphragm (Sd) (cm²) 539.1
Moving Mass (Mms) (gm) 26.6
Motor Force Factor (BL) (T•M) 14.57
Efficiency (η₀) (%) 6.75
Efficiency Bandwidth Product (EBP) (Fs/Qes) 179.16
Basket Type Stamped steel with black powder coat painting
Terminal Size (mm) 5.2 x 0.5
Voice Coil Diameter (mm) 44
Voice Coil Wire Material Copper
Voice Coil Former Material Kraft paper former
Voice Coil Winding Style Single Layer
Magnet Material Ferrite
Magnet Weight (gm) 1417
Cone Body Material Hemp
Cone Surround Material Hemp
Dust Cap Material Open cloth
Spider Material Cotton
Net Weight (kg) 5.9
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