Mod 8-20

General Characteristics for 4Ω

Nominal Overall Diameter
207 mm
8 in
Nominal Voice Coil Diameter
25 mm
1 in
Magnet Weight
160 g
6 oz
Overall Weight
0.68 kg
1.5 lbs
Flux Density
1 T

Thiele-Small Parameters for 4Ω

Voice Coil DC Resistance
RE
3.26 Ω
Resonance Frequency
ƒS
111.2 Hz
Mechanical Q Factor
QMS
19.23
Electrical Q Factor
QES
1.91
Total Q Factor
QTS
1.74
Mechanical Moving Mass
MMS
10.1 g
Mechanical Compliance
CMS
204 µm/N
Force Factor
BxL
3.47 Wb/m
Equivalent Acoustic Volume
VAS
13.1 lt.
Maximum Linear Displacement
XMAX
± 1.5 mm
Reference Efficiency
nO
0.9 %
Diaphragm Area
SD
213.8 cm2
Losses Electrical Resistance
RES
32.8 Ω
Voice Coil Inductance @ 1kHz
LE
0.3 mH

Constructive Characteristics for 4Ω

Magnet
Ferrite
Voice Coil Winding
Copper
Voice Coil Former
Epotex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Non-treated Cloth
Basket Material
Pressed Sheet Steel

Electrical Characteristics for 4Ω

Nominal Impedance
4 Ω
Rated Power
20 W
Musical Power
40 W
Sensitivity@1W,1m
93.2 dB

General Characteristics for 8Ω

Nominal Overall Diameter
207 mm
8 in
Nominal Voice Coil Diameter
25 mm
1 in
Magnet Weight
160 g
6 oz
Overall Weight
0.68 kg
1.5 lbs
Flux Density
1 T

Thiele-Small Parameters for 8Ω

Voice Coil DC Resistance
RE
6.5 Ω
Resonance Frequency
ƒS
119.4 Hz
Mechanical Q Factor
QMS
19.88
Electrical Q Factor
QES
2.52
Total Q Factor
QTS
2.24
Mechanical Moving Mass
MMS
10.3 g
Mechanical Compliance
CMS
173 µm/N
Force Factor
BxL
4.45 Wb/m
Equivalent Acoustic Volume
VAS
11.1 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
0.72 %
Diaphragm Area
SD
213.8 cm2
Losses Electrical Resistance
RES
51.1 Ω
Voice Coil Inductance @ 1kHz
LE
0.4 mH

Constructive Characteristics for 8Ω

Magnet
Ferrite
Voice Coil Winding
Copper
Voice Coil Former
Epotex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Non-treated Cloth
Basket Material
Pressed Sheet Steel

Electrical Characteristics for 8Ω

Nominal Impedance
8 Ω
Rated Power
20 W
Musical Power
40 W
Sensitivity@1W,1m
93.2 dB
MOD8-20
8",
20 watts
Ohms

Straightforward tone with smooth highs and more predominant lows. It responds to overdrive distortion with a mellow fuzz overdrive.

Lows
Loose/Fat
Mids
Firm
Highs
Smooth
Overdrive
Smooth
Guitarist Description
Straightforward tone with smooth highs and more predominant lows. Responds to overdrive distortion with a mellow fuzz overdrive.
Bassist Description
Bright
Specification Sheet
Product Dimensions
Frequency Response Charts
User Reviews

I installed a Mod 12-70 in my Lab L3 and i was immediately knocked out by the sound - the low end was tighter and the mids were more complex. Clean or distorted it was the sound I had wanted for years. On a whim I installed a Mod 8-20 in an old Peavey Rage 158 - the sound opened up with more lows and mids and volume. This small 15W amp is now my go-to for small rooms and recording.

Matt Richards

I bought four 8" MOD speakers for a 4x8” cab project I was working on. I’m really happy with the speakers. They were easy to install and sound really good paired with a Fender Pro Jr as the head. Congrats on a great product.

Ed in New York, NY