MartinLogan Grotto I User manual

The Loudspeaker Technology Company
www.martinlogan.com ©2009 MartinLogan, Ltd. All rights reserved.
Application:
Home theater and stereo subwoofer
ideal for medium and small rooms.
The world’s most affordable, com-
pact, and versatile servo-control
equipped subwoofer, Grotto i,
delivers extremely articulate bass
without the need for exaggerated
amplifier power ratings.
Key Features:
• AdvancedServoControl
• Ultraefficient300-wattamplifier
• Low-distortion10-inchaluminum
cone woofer
• 25Hzlevelcontrol
• Precisionlow-passcrossoverfilters
• Uniquecrossoverandlevelsettings
for simultaneous 2-channel and LFE
connections
• CustomETC™spikes
Grotto™i
STEREO/HOME THEATER SUBWOOFER
FINISH OPTIONS
COMPACT AND ACCURATE
Apowerful300watt(900wattpeak)low-distortion,high-reliabilityamplifier
delivers extremely articulate bass without the need for transient-blurring
ported or passive radiator enclosures common to many modern subwoofers.
AproprietaryservosystemfurtherensuresthatoutputfromGrottoi’s10-inch
high-resolution aluminum cone woofer is dramatically free of distortion and
provides tight, well defined bass in any system.
Frequency Response 22–120Hz±3dB
Low Pass Filter Frequencies 30,35,45,55,65,80Hz
High Pass Filter Frequency 70Hz
25Hz Level Control ±10dB
Low Frequency Driver 10”(25.4)aluminumcone
Amplifier 300W(900Wpeak)
Inputs Left/RightRCALineLevel,RCALFE,
SpeakerLevel
Outputs RCASubOut,RCARight/Left
Weight 51lbs.(23.2kg)
Dimensions (HxWxD) 18.6”x15.2”x13.8”
(47.3x38.6x35cm)
Black Ash
Visit configurator.martinlogan.com to
explore the full range of finish options.
E S L
S E R I E S