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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Advent 2002 loudspeakers

 

The 2002 is Advent's least expensive loudspeaker system. It supplies, at low cost, the wide frequency range, critically adjusted tonal balance and broad dispersion that make the performance of inexpensive systems far better than most people expect.

Three faactors make the 2002 remarkable:

When compared to many like-priced speakers, the 2002 delivers up to entire additional octave of bass. No one who has heard this level of bass performance is likely to settle for less.

It can be driven by virtually any amplifier. The efficiency of the 2002 solves system matching problems; even small amplifiers caan produce satisfying sound levels.

The 2002 cabinet is scaled to take up minimum space. Like all Advent loudspeakers,, the colors and textures of the 2002 are at home anywhere.

 

The Advent High Efficiency Tweeter

This Advent driver is similar in appearance to many others, but there's more than meets the eye. The smoothness of this tweeter puts it in the class of top notch speaker systems. The engineering behind the high efficiency tweeter takes full advantage of the best understood design approaches and uses new materials to more closely approach theoretical ideals. In particular, the surround, because of the unusual suppleness its composition provides, damps out cone resonances that color the sound. The offset placement (mirror image) of the driver on the baffle board allows pinpoit stereo imaging in close quarters and insures smoother response in a wide variety of placement locations.

 


Low Frequency Driver

This Advent designed low frequency driver develops deeper bass response than competitively sized loudspeakers. The special cone construction and flexible urethane surround are responsible for the smooth response throughout its operating raange. This woofer is remarkable in its linearity to beyond 3200 Hz. The carefully calculated balance of cone diameter, cabinet volume, and magnet strength contribute substantially to the power handling ability and uncommonly good bass response shown by the system using this woofer.

 

The crossover

The crossover network is often an underestimated consideration in the design of a loudspeaker system; however the crossover network chosen for the 2002 is the product of as much development time as any element of the system. It is the reason for the audibly seamless transition between drivers. One important advantage of designing and building drivers from the ground up (as Advent does) is the "fit" of the crossover to the driver. This complementary relationship, maximized in the 2002, makes for a system that can be driven easily by any amplifier or receiver.

 

The Cabinet

The cabinet is constructed of a dense, non-resonant composite board ideal for acoustic application. The careful placement of the drivers on the baffle board minimizes cabinet diffraction and the resulting response aberrations.

The proportions and crisp styling of the cabinet are in keeping with the Advent philosophy that a value-oriented loudspeaker system can be attractive; appearance is another important way a loudspeaker can give ongoing satisfaction.

 

Specifications:

Frequency Response:  50 Hz - 23 kHz ±3 dB (on axis)

Impedance:  8 Ω nominal, 6 Ω minium

Resonance:  62 Hz ±2 Hz

Harmonic Distortion:  less than 1% over 80 Hz (1 watt)

Crossover Frequency:  3,200 Hz

Sensitivity:  88 dB ( at 1 W/1 m on axis)

Frequency Range: 

Low Frequency :  42 Hz - dB

High Frequency :  22 kHz - 3 dB

Dimensions (H x W x D):  18-1/2" x 11" x 8"

Weight;  16,5 lbs

Finish:  Walnut grain vinyl over high density composition board


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