MartinLogan Summit X user manual Resistor.. a device used in a circuit to provide resistance

WARNING! Do not use your Summit X loudspeakers outside of the country of original sale—voltage requirements vary by country. Improper voltage can cause damage that will be potentially expensive to repair. The Summit X is shipped to authorized MartinLogan distributors with the correct power supply for use in the country of intended sale. A list of authorized distributors can be accessed at www.martinlogan.com or by emailing info@martinlogan.com.

Linearity.. The extent to which any signal handling process is accomplished without amplitude distortion.

Midrange.. The middle frequencies where the ear is the most sensitive.

Passive crossover.. Uses no active components (transistors, IC’s, tubes) and needs no power supply (AC, DC, battery) to operate. The crossover in a typical loudspeaker is of the passive variety. Passive crossovers consist of capacitors, inductors and resistors.

Phase.. The amount by which one sine wave leads or lags a second wave of the same frequency. The difference is described by the term phase angle. Sine waves in phase reinforce each other; those out of phase cancel.

Pink noise.. A random noise used in measurements, as it has the same amount of energy in each octave.

Polarity.. The condition of being positive or negative with respect to some reference point or object.

RMS.. Abbreviation for root mean square. The effective value of a given waveform is its RMS value. Acoustic power is proportional to the square of the RMS sound pressure.

Resistance.. That property of a conductor by which it opposes the flow of electric current, resulting in the generation of heat in the conducting material, usually expressed in ohms.

Resistor.. A device used in a circuit to provide resistance.

Resonance.. The effect produced when the natural vibra- tion frequency of a body is greatly amplified by reinforcing

vibrations at the same or nearly the same frequency from another body.

Sensitivity.. The volume of sound delivered for a given electrical input.

Stator.. The fixed part forming the reference for the moving diaphragm in a planar speaker.

THD.. The abbreviation for total harmonic distortion. (See Distortion)

TIM.. The abbreviation for transient intermodulation distortion.

Transducer.. Any of various devices that transmit energy from one system to another, sometimes one that converts the energy in form. Loudspeaker transducers convert elec- trical energy into mechanical motion.

Transient.. Applies to that which lasts or stays but a short time. A change from one steady-state condition to another.

Tweeter.. A small drive unit designed to reproduce only high frequencies.

Wavelength.. The distance measured in the direction of progression of a wave, from any given point characterized by the same phase.

White noise.. A random noise used in measurements, as it has the same amount of energy at each frequency.

Woofer.. A drive unit operating in the bass frequencies only. Drive units in two-way systems are not true woofers but are more accurately described as being mid/bass drivers.

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