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





Boston Acoustic A60


A small speaker system that produces a clean, undistorted sound image comparable to much larger, more expensive speakers. In addition, the A60 offers the same imaging capability, efficiency, and ease of placement as our more expensive loudspeaker system.

High speaker efficiency means low amplifier cost.
The Boston Acoustic A60 is a highly achieve full volume. An amplifier or receiver rated as low as 10 watts is sufficient (though the speaker can handle as much as 60 watts). This efficiency means you can spend less money on your receiver or amplifier and get excellent performance.

More placement options than other speakers, large or small.
Because the A60 is small and lightweight, it fits easily and unobtrusively into any room. And because it radiates sound in a broader pattern than most loudspeaker systems - like a table lamp instead of a spotlight - it performs well in a veriety of positions, giving you many placement options.

An accurate stereo image increases realism.
Boston Acoustic speakers are well-known for their ability to recreate an accurate stereo image that increases realism and enjoyment. The dimension of the cabinet minimize unwanted sounds that would ordinarily muddy the stereo picture. The result is a crisp, focused image.
Another characteristic that contributes to good imaging is a tweeter that's matched to the woofer in terms of its radiation pattern. A limitation of ordinary tweeters is that they radiate sound forward in a tight pattern, like a flashlight radiates light. In contrast, all woofers radiate over  a broad area, like a table lamp. The tweeter incorporated in the A60 radiates in a very broad pattern, making the woofer and tweeter a well-matched team.

The best combination of range and accuracy in its price class.
It;s not just how high and how low a speaker can go, but how far it can reach into the bass and treble regions while maintaining the correct proportion of high and lows.. The A60 maintains this correct proportion while reaching as high into the treble and as deep into the bass as any speaker in its class.

The A60's woofer uses a specially formulated cone material to eliminate frequency response irregularities at the top end of its operating range. The 1-1/2" tweeter has unusually wide dispersion for a diaphragm its size, due in large part to its elastometric edge termination. Its voice coil is bathed in ferrofluid to improve power handling.

Among the refinements in the A60 are a single-pole (6 dB/oct) network for uniform blending of the drivers in the crossover region and a smooth, easy-to-drive impedance. The grille panel has a 30-degree bevel around its inner perimeter that virtually eliminates early reflections (diffraction) that can blur the stereo image.

Specifications:
Drivers:
High-frequency :  1-1/2" tweeter with ferrofluid cooling
Low-frequency :  8" long throw woofer
Frequency Response:  55 Hz - 22,000 Hz  ±3 dB
Crossover Frequency:  6 dB/octave at 3000 Hz
Impedance: 8 Ω nominal, 6 Ω minimum
Sensitivity (at 1 watt/m input):  90 dB
Recommended Amplifier Power:  10 to 60 watts per channel
Dimensions (H x W x D):  457 x 292 x 197 mm (18" x 11-1/2" x 7-3/4")
Weight:  7,3 kg (16 lbs)
Cabinet Finish:  wood grain vinyl finish over non-resonant particle board

Nessun commento:

Posta un commento