General information, Specifications, Warranty and registration – MartinLogan Source Speakers User Manual
Page 22: Serial number, Service, Eneral, Nformation, Specifications* warranty and registration

System Frequency Response:
43–22,000 Hz ± 3db
Dispersion
Horizontal: 30 Degrees 
Vertical: 28” (71 cm) line source
Sensitivity
90 dB/2.83 volts/meter
Impedance
Nominal: 5 ohms 
Minimum: 1.6 ohms @ 20 kHz 
Crossover Frequency
470 Hz
Components
Custom-wound audio transformer, air core coils
Woofer Type
8” (20.3 cm) high excursion, high-rigidity paper cone with 
extended throw driver assembly, non-resonance asymmetri-
cal chamber format, bass reflex
Power Handling
200 watts per channel
Weight
47 lbs. each (21.4 kg)
Size
51.2” h x 9.7” w x 14.6” d 
(130 h x 24.5 w x 37 d cm)
Your Source speakers are provided with an automatic 
Limited 90 Day Warranty coverage. You have the 
option, at no additional charge, to receive a Limited 
5 Year Warranty coverage. To obtain the Limited
5 Year Warranty coverage you need to complete and 
return the Certificate of Registration, included with your 
speakers, and provide a copy of your dealer receipt, to 
MartinLogan within 30 days of purchase. For your conve-
nience MartinLogan also offers online warranty registration at 
www.martinlogan.com.
MartinLogan may not honor warranty service claims unless 
we have a completed Warranty Registration card on 
file! If you did not receive a Certificate of Registration with 
your new Source speakers you cannot be sure of having 
received new units. If this is the case, please contact your 
authorized MartinLogan dealer.
Serial Number
Source’s serial number is located near the binding posts. 
Each individual unit has a unique serial number.
Service
Should you be using your MartinLogan product in a country 
other than the one in which it was originally purchased, 
we ask that you note the following:
1 The appointed MartinLogan distributor for any given
country is responsible for warranty servicing only on 
units distributed by or through it in that country in 
accordance with its applicable warranty.
2 Should a MartinLogan product require servicing in a
country other than the one in which it was originally 
purchased, the end user may seek to have repairs per-
formed by the nearest MartinLogan distributor, subject 
to that distributor’s local servicing policies, but all cost of 
repairs (parts, labor, transportation) must be born by the 
owner of the MartinLogan product.
3 If, after owning your speakers for six months, you
relocate to a country other than the one in which 
you purchased your speakers, your warranty may be 
transferable. Contact MartinLogan for details.
*Specifications are subject to change without notice.
Specifications*
Warranty and Registration
22 General Information
G
ENERAL
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