Boston 1020 - 10" Alnico Guitar Speaker, 20 Watt, 8 Ohm

Boston 1020 - 10" Alnico Guitar Speaker, 20 Watt, 8 Ohm

GOTTA GET BACK TO THE REAL NITTY-GRITTY...

Create your next signature sound with the Boston 10” guitar speaker. Spotlight your tone with a driver that delivers a warm, articulate bottom-end, scooped mids, and blooming highs.

This model includes a good old fashioned 1960’s style Alnico magnet assembly for an ultra-quick impulse response. The often-misunderstood magic of Alnico is that it partially and temporarily demagnetizes when you push them hard, applying a simple compression effect that adds a satisfying sense of sweetness that can't be beat. 

• American tone guitar speaker
• 10" (250 mm) steel basket diameter
• 20 watts, 8 ohm, 96 dB SPL
• 1" copper voice coil, Kraft paper former
• 6.8 oz alnico magnet
• USA-made seamed paper cone

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.

Brand Name

ToneSpeak

Size, Nominal (inch & mm)

10" (250 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)

20 Watts

Rated Impedance (Ω)

8

Continuous Power (W)

20

Program Power (W)

40

Frequency Range (Hz)

55 - 6,200

Sensitivity (dB SPL) ¹

96

Resonant Frequency (Fs) (Hz)

104

DC Resistance (Re) (Ω)

6.3

Voice Coil Inductance (Le) (mH)

0.35

Mechanical Q Factor (Qms)

19.9

Electrical Q Factor (Qes)

1.77

Total Q Factor (Qts)

1.63

Mechanical Resistance (Rms) (kg/s)

0.58

Compliance Equivalent Volume (Vas) (L)

29.6

Suspension Compliance (Cms) (mm/N)

0.1

Surface Area of Diaphragm (Sd) (cm²)

397.6

Moving Mass (Mms) (gm)

17.5

Motor Force Factor (BL) (T•M)

6.4

Efficiency (η₀) (%)

1.83

Efficiency Bandwidth Product (EBP) (Fs/Qes)

58.8

Basket Type

Cold-rolled steel

Terminal Size (mm)

5.2 x 0.5 (Dual lug)

Voice Coil Diameter (mm)

25.4

Voice Coil Wire Material

Copper

Voice Coil Former Material

Kraft paper

Voice Coil Winding Style

Single Layer

Magnet Material

Alnico

Magnet Weight (g)

192.77

Cone Body Material

Paper composite

Cone Surround Material

Paper composite

Dust Cap Material

Felt

Technical Notes

¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance