Leeds 1020
Infuse your guitar tone with the timeless warmth of an alnico-driven British-style speaker. The Leeds 1020 from ToneSpeak delivers punchy lows, scooped mids, and soaring highs—offering definition at the extremes while still preserving a sweet, balanced character through the midrange.
A carefully designed 6.8-ounce alnico magnet softens the attack for a more vintage-flavored response, while the highly regarded Kurt Müller paper cone contributes a lush, full-bodied tone that truly complements your playing. Equipped with a 1-inch copper voice coil on a durable Kraft paper former, the Leeds 1020 is built to handle dynamic performances with clarity and nuance.
Key Features
- 10-inch (250 mm), 20-Watt power handling at 8 Ω impedance
- 96 dB SPL sensitivity for strong projection
- Signature alnico magnet providing a warm, classic response
- Kurt Müller paper cone for a rich, musical tonality
- 1” copper voice coil with Kraft paper former for consistent performance
- Steel basket design for stability and easy installation
Elevate your guitar rig with the Leeds 1020—where vintage flair meets modern reliability.
sensitivity & impedance curves
Input: 2.83 volts measured at 1 Meter
0 deg response
30 deg response
60 deg response
impedance
where to buy
Where to Buy
Canada
germany
japan
general specifications
General Specifications
| parameter | value |
|---|---|
| Nominal Diameter (in & mm) | 10" (250 mm) |
| Nominal Impedance (Z) (Ω) | |
| Rated Power IEC268-5 (W) | 20 |
| Program Power (W) | 40 |
| Magnet Weight (g) | 193 |
| Voice Coil Diameter (mm) | 25 |
| Sensitivity (dB SPL) | 96 |
| Frequency Range (Hz) | 65 - 6300 |
small signal parameters
Small Signal Parameters
| parameter | value |
|---|---|
| Resonant Frequency (Fs) (Hz) +/- 15% | 112 |
| DC Resistance (Re) (Ω) | 6.2 |
| Voice Coil Inductance (Le) (mH) | 0.35 |
| Moving Mass (Mms) (gm) | 15.84 |
| Suspension Compliance (Cms) (mm/N) | 0.1 |
| Motor Force Factor (BL) (T•M) | 5.91 |
| Mechanical Q Factor (Qms) | 18.38 |
| Electrical Q Factor (Qes) | 1.99 |
| Total Q Factor (Qts) | 1.8 |
| Compliance Equivalent Volume (Vas) (L) | 28.27 |
| Surface Area of Diaphragm (Sd) (cm²) | 397.61 |
material description
Material Description
| parameter | value |
|---|---|
| Basket Type | Cold-rolled steel |
| Magnet Material | Alnico |
| Cone Body Material | Paper composite |
| Cone Surround Material | Paper composite |
| Dust Cap Material | Felt |
| Spider Material | |
| Voice Coil Wire Material | Copper |
| Voice Coil Former Material | Kraft paper |
| Voice Coil Winding Style | Single Layer |