GENERAL INFORMATION
Specifications*
System Frequency Response
Low Pass Filter Frequencies
30, 35, 45, 55, 65, 80Hz
High Pass Filter Frequencies
Bypass, 40Hz, 70Hz
Phase
0°, 90°, 180°, 270°
25Hz & 50Hz Level
±10dB
Power
On, Auto, Standby
Components
3 × 10” (25.4cm)
Amplifiers
3 × 250W (at < 0.24%THD)
3 × 700W (peak) / 2100W (peak, system total)
Inputs
Left/Right RCA Line Level, RCA & XLR LFE, Speaker Level
Output
RCA Sub Out (all inputs summed), RCA Right/Left (with High Pass Filter)
Input Impedance
20,000 Ohms
Power Draw
Max: 750 Watts; Idle: 30 Watts; Standby: 10 Watts
Weight
105 lbs. each (47.7 kg)
Size
21.4" inches H x 20.5" inches W x 19.9" inches D (54.4cm H x 51.9cm W x 50.5cm D)
*Specifications are subject to change without notice.
Warranty and Registration
Your subwoofer is provided with an automatic Limited 90 Day Warranty coverage. You have the option, at no additional charge, to receive Limited
For your convenience MartinLogan also offers online warranty registra- tion 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 subwoofer you cannot be assured of having received a new unit. If this is the case, please contact your authorized MartinLogan dealer.
Serial Number
Descent i’s serial number is located near the bottom of the backplate. Each individual unit has a unique serial number.
Service
In the rare event that your MartinLogan product should require service please contact the dealer from whom the product was purchased. In most cases your dealer will be able to assist you in troubleshooting and resolving the issue. If the dealer is unable resolve the issue or if there is no local dealer in your area contact MartinLogan customer service directly by using the service request form at www.martinlogan.com or by calling
Before returning any product to MartinLogan for service first contact the service department for an RMA number. Incoming shipments will only be accepted if labeled with a MartinLogan issued RMA number.
Before returning this product to MartinLogan for service first contact the service department to receive a shipping kit which will include packing straps and packing instructions.
Should you be using a MartinLogan product in a country other than the one in which it was originally purchased, please note the following:
1The 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.
2Should 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 performed by the nearest MartinLogan distrib- utor, subject to that distributor's local servicing policies. All cost of repairs (parts, labor, transportation) must be born by the owner of the MartinLogan product.
3If, after owning your MartinLogan product for six months, you relo- cate to a country other than the one in which it was purchased, your warranty may be transferable. Contact MartinLogan for details.
General Information 23