AC Power Connection
Your Summit X speakers use an internal power sup- ply to energize their electrostatic cells and the amplified PoweredForce™ woofer system, and must be connected to an AC power source. For this reason they are provided with the proper IEC standard power cords. These cords should be firmly inserted into the AC power receptacles on the rear connection panel of the speakers, then to any convenient AC wall outlet.
The Summit X integrates a signal sensing power supply which will switch off after 15 minutes without music sig- nal, and requires less than four seconds to recharge the panels when a music signal is present.
Your Summit X speakers are wired for the power service supplied in the country of original consumer sale. The AC power rating applicable to a particular unit is speci- fied both on the packing carton and on the serial number plate attached to the speaker. If you remove your Summit X speakers from the country of original sale, be certain that the AC power supplied in any subsequent location is suitable before connecting and operating the speakers. Substantially impaired performance or severe damage may occur to a Summit X speaker if operation is attempted from an incorrect AC power source.
WARNING! The power cord should not be installed, removed, or left detached from the speaker while the other end is connected to an AC power source.
Signal Connection
Use the best speaker cables you can. The length and type of speaker cable used in your system will have an audible effect. Under no circumstance should a wire of gauge higher (thinner) than #16 be used. In general, the lon- ger the length used, the greater the necessity of a lower gauge, and the lower the gauge, the better the sound, with diminishing returns setting in around #8 to #12.
A variety of cables are available whose manufacturers claim better performance than standard heavy gauge wire. We have verified this in many cases, and the improvements available are often more noticeable than the differences between wires of different gauge. The effects of cables may be masked if equipment is not of the highest quality.
Connections are made at the signal input section on the rear electronics panel of the Summit X. Use spade con- nectors for optimum contact and ease of installation. Hand tighten the binding posts, but do not overtighten— do not use a tool to tighten the binding posts.
Be consistent when connecting the speaker cables to the signal input terminals. Take care to assign the same color cable lead to the (+) terminal on both the left and right channel speakers. If bass is weak and you cannot discern a tight, coherent image, you may need to reverse the (+) and
WARNING! Turn your amplifier off before making or breaking any signal connections!
Break-In
When you first begin to play your Summit X speakers the bass will sound weak. This is due to the high quality, long- life components used in the woofers. Our custom made, butyl surround woofers require approximately 72 hours of
25 & 50 Hz Level Controls
After you have determined the speaker position and pri- mary listening position (see pages
On the rear of the Summit X are two knobs that control the 25Hz and 50Hz frequency responses by ±10db. MartinLogan engineers have found this frequency area
To help find the optimal setting for your room, play famil- iar material with low frequency information (such as a
