03-28-2012 09:35 PM

Ripple, AC noise level from a power supply, riding on a DC voltage rail, units in dB.

03-28-2012 09:35 PM

A head unit that combines a tuner, a preamplifier, and a power-amplifier.

03-28-2012 09:35 PM

RDS tuners can automatically tune in stations according to the style of music (or talk) they broadcast. Some RDS tuners can even break in with... [Read more]

03-28-2012 09:35 PM

Radio-frequency sound waves can be caused by many sources including; shortwave radio equipment, household electrical line, computers and many other... [Read more]

03-28-2012 09:35 PM

Acronym for Random Access Memory. A memory device that one can write data to and read data from.

03-28-2012 09:35 PM

Also known as shuffle play. Mixes up the order of songs during playback. Some CD players offer a "Random Play with Delete" feature that prevents a... [Read more]

03-28-2012 09:35 PM

Acoustical equivalent of RMS.

03-28-2012 09:35 PM

"Phono" plugs, used primarily as low-level connections between Phonographs/CD players/tuners/receivers/amplifiers.

03-28-2012 09:35 PM

This is the DC resistance of the driver measured with an ohm meter and it is often referred to as the 'DCR'. This measurement will almost always be... [Read more]

03-28-2012 09:35 PM

An audio component that combines a pre-amplifier, amplifier(s) and tuner in one chassis. A Dolby Prologic Receiver also contains a Dolby Prologic... [Read more]

03-28-2012 09:35 PM

Single Pole Double Throw Relay. An electromagnetic switch, consist of a coil (terminals 85 & 86), one common terminal (30), one normally closed... [Read more]

03-28-2012 09:35 PM

For remote-compatible CD receivers, wired, or infrared wireless remotes are either included with a receiver, or available as accessories.

03-28-2012 09:35 PM

The lead from the head unit which supplies a signal (12V+) to the "remote turn on" lead of the amplifier turning the amplifier on when the head unit... [Read more]

03-28-2012 09:35 PM

The electrical resistive equivalent of Rms, in ohms.

03-28-2012 09:35 PM

The opposition to the flow of AC or DC voltage in an electric current. Measured in ohms. In electrical or electronic circuits, a characteristic of a... [Read more]

03-28-2012 09:35 PM

An electrical device that resist the flow of electrical current. The higher the value of resistance (measured in ohms) the lower the current and... [Read more]

03-28-2012 09:35 PM

Pitch. When you tighten a drum, you raise its resonance.

03-28-2012 09:35 PM

Frequency at which there is a response peak, due to a specific interaction of inductive and capacitive circuitry in an audio devise or system. Any... [Read more]

03-28-2012 09:35 PM

DC voice coil resistance, in ohms.

03-28-2012 09:35 PM

A device that converts a signal (typically audio and/or video) into a radio frequency.

03-28-2012 09:35 PM

Amplifier source resistance (includes leads, crossover, etc.), in ohms.

03-28-2012 09:35 PM

A type of speaker that uses a pleated conductor suspended between magnets. Most true ribbons are tweeters only. Sometimes confused with... [Read more]

03-28-2012 09:35 PM

This parameter represents the mechanical resistance of a driver's suspension losses. It is a measurement of the absorption qualities of the speaker... [Read more]

03-28-2012 09:35 PM

Acronym for Root Mean Square. The RMS voltage of an AC waveform corresponds to the same DC equivalent power source and ability to drive an electrical... [Read more]

03-28-2012 09:35 PM

The amount of continuous power, measured in watts, that an amplifier produces is called Root Mean Square (RMS) power. The higher the RMS figure, the... [Read more]