MartinLogan 40, 20 user manual Specifications

Specifications*	MARTINLOGAN MOTION 20
Frequency Response	46–25,000 Hz ± 3 dB
Dispersion	80° x 80°
Sensitivity	90 dB @ 2.83 volts/ meter
Impedance	4 Ohms. Compatible with 4, 6
	or 8 Ohm rated amplifiers.
Crossover Frequency	500 & 2,600 Hz
High Frequency Driver	1” x 1.4” (2.6cm x 3.6cm)
	Folded Motion Transducer with
	5.25” x 1.75” (13.3cm x
	4.4cm) diaphragm.
Mid Frequency Driver	. . . . . . . . . . . . . . . . . . . . .

MARTINLOGAN MOTION 40

40–25,000 Hz ± 3 dB

80° x 80°

92 dB @ 2.83 volts/ meter

4 Ohms. Compatible with 4, 6 or 8 Ohm rated amplifiers.

500 & 2,600 Hz

1” x 1.4” (2.6cm x 3.6cm) Folded Motion Transducer with 5.25” x 1.75” (13.3cm x 4.4cm) diaphragm.

5.5” (14cm) aluminum cone with cast polymer basket. Non- resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes.

Low Frequency Drivers	Two 5.5” (14cm) aluminum cone
	with cast polymer basket. Non-
	resonant asymmetrical chamber
	format. Rigid structured dust cap
	to reduce cone break-up modes.
Cabinet	Ported
Components	Custom air core coil and low
	DCR steel laminate inductors.
	Polyester film capacitors in
	series and low DF electrolytic
	capacitors in parallel. Tweeter
	thermal/current protection.
Recommended Amp Power . . .	20–200 watts
Binding Post Inputs	Custom 5-way bi-wire tool-less
	binding posts
Weight	37 lbs. (16.8 kg)
Dimensions (HxWxD)	36.6” x 6.8” x 11.7”
	(92.9cm x 17.3cm x 29.7cm)

Two 6.5” (16.5cm) aluminum cone with cast polymer basket. Non- resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes.

Ported

Custom air core coil and low DCR steel laminate inductors. Polyester film capacitors in series and low DF electrolytic capacitors in parallel. Tweeter thermal/current protection.

20–300 watts

Custom 5-way bi-wire tool-less binding posts

49 lbs. (22.2 kg)

42.5” x 7.6” x 12.8” (107.9cm x 19.2cm x 32.6cm)

*Specifications are subject to change without notice.

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