MartinLogan Sequel II Manuale Utente

Inductance

Inductance

Inductance

Inductance

Inductance. The property of an

electric circuit by which a varying

current in it produces a varying

magnetic field that introduces

voltages in the same circuit or in

a nearby circuit. It is measured in

henrys.

Inductor

Inductor

Inductor

Inductor

Inductor. A device designed

primarily to introduce inductance

into an electric circuit. Sometimes

called a choke or coil.

Linearity

Linearity

Linearity

Linearity

Linearity. The extent to which any

signal handling process is

accomplished without amplitude

distortion.

Midrange

Midrange

Midrange

Midrange

Midrange. The middle frequencies

where the ear is the most sensi-

tive.

Passive crossover

Passive crossover

Passive crossover

Passive crossover

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 cross-

overs consist of capacitors,

inductors and resistors.

Phase

Phase

Phase

Phase

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

Pink noise

Pink noise

Pink noise

Pink noise. A random noise used in

measurements, as it has the same

amount of energy in each

octave.

Polarity

Polarity

Polarity

Polarity

Polarity. The condition of being

positive or negative with respect

to some reference point or object.

RMS

RMS

RMS

RMS

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

Resistance

Resistance

Resistance

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

Resistor

Resistor

Resistor

Resistor. A device used in a circuit

primarily to provide resistance.

Resonance

Resonance

Resonance

Resonance

Resonance. The effect produced

when the natural vibration

frequency of a body is greatly

amplified by reinforcing vibra-

tions at the same or nearly the

same frequency from another

body.

Sensitivity

Sensitivity

Sensitivity

Sensitivity

Sensitivity. Volume of sound

delivered for a given electrical

input.

Stator

Stator

Stator

Stator

Stator. The fixed part forming the

reference for the moving dia-

phragm in a planar speaker.

THD

THD

THD

THD

THD. Abbreviation for total harmonic

distortion. (See Distortion.)

TIM

TIM

TIM

TIM

TIM. Abbreviation for transient

intermodulation distortion. (See

Distortion.)

Transducer

Transducer

Transducer

Transducer

Transducer. Any of various devices

that transmit energy from one

system to another, sometimes one

that converts the energy in form.

Loudspeaker transducers convert

electrical energy into mechani-

cal motion.

Transient

Transient

Transient

Transient

Transient. Applies to that which lasts

or stays but a short time. A

change from one steady-state

condition to another.

Tweeter

Tweeter

Tweeter

Tweeter

Tweeter. A small drive unit designed

to produce only high frequencies.

Wavelength

Wavelength

Wavelength

Wavelength

Wavelength. The distance mea-

sured in the direction of progres-

sion of a wave, from any given

point characterized by the same

phase.

White noise

White noise

White noise

White noise

White noise. A random noise used in

measurements, as it has the same

amount of energy at each

frequency.

Woofer

Woofer

Woofer

Woofer

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.