Dynacord Speaker manual Alpha B-3, Horn-Loaded Three-Way Hi-Powerloudspeaker System

ALPHA X-1AND ALPHA B-3

What was designed without compromise remains free from compromise: in their almost fifteen-year history, Alpha systems have never tasted defeat; and their triumphant progress continues apace, with successful installations all over the globe.

Their legend lies not only in their extreme reliability but also in their extraordinarily clean (and giganti- cally powerful!) sound.

Alpha systems are to be found in the most up-market, the most fashionable and the most popular

clubs and discotheques in Las Vegas, Miami and New York, throughout Asia and the Middle East, and, of course, also in Europe. The Alpha guarantees a club enthusiastic guests, thereby ensuring a sure and swift return on its investment.

Alpha X-1

HORN-LOADED THREE-WAY HI-POWER LOUDSPEAKER SYSTEM

The Alpha X-1 system is a horn-loaded, three-way loudspeaker system.

The two vented 15“ loudspeakers combine with a conical short horn to deliver extremely precise and punchy midrange and low frequen- cy reproduction that extends right down to 80 Hz and beyond. The 2“ high-performance driver with its

True Constant Directivity horn (90° x 40° or 60° x 40°, according to choice) offers in the range from 800 Hz to 8 kHz truly dynamic mid- high reproduction, rich in presence. The brilliant high-frequency repro- duction of the 90° and 60° horns is ensured by a pair of diffraction or ring radiators respectively. The Alpha X-1‘s trapezoidal cabinet design

facilitates the formation of multiple- component clusters. The Alpha X-1 can be driven in active two-way or active three-way mode, according to choice. But whichever mode is se- lected, every loudspeaker chassis is reliably protected by thermal circuit breakers or halogen lamps against critical power levels as well as short- term thermal overload.

Alpha B-3

2 x 18” PWH SUBWOOFER-SYSTEM

The Alpha B-3 system is a 2 x 18“ PWH subwoofer system employing Planar Waveguide technology.

A PWH horn is a planar waveguide horn with a Helmholtz resonator placed inside the wave guide. The resulting 6 to 7 dB gain in SPL

in the low frequency range is a product of the interaction between the resonance of the waveguide

and that of the Helmholtz resonator. At the same time, the design of the PWH subwoofer is such as to limit the cone‘s excursion, protecting the diaphragm and guaranteeing outstandingly accurate impulse reproduction, a very wide dynamic range, extremely low distortion, and prolonged reliable operation. alpha B-3 systems offer directi- vity in the low-frequency range

down to 30 Hz. They combine the advantages of both direct-radiating and horn-loaded systems, and – thanks to their unique design – are markedly superior to conventional solutions.

Dynamic protections safeguard the two 18“ speakers reliably against critical power levels as well as short-term thermal overload.

SYSTEM DRIVES

To drive the system, we recommend high-performance power ampli- fiers from DYNACORD‘s PowerH series equipped with the RCM-26 Digital FIR Controller. Naturally, optimized settings (including FIR filter linearization) are available for alpha systems too through the use of IRIS-Net software.

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