STEWART WORLD1.6 Details
The worlds smallest, lightest, most
powerful amps!
Innovation in design
has been the reputation of Stewart from the beginning. As a respected
designer/manufacturer of amplifiers for professional audio applications,
Stewart has applied years of experience to the development of the World Power
Amplifiers.
The Switch Mode Power Supply
The World Amplifiers feature a radical departure from conventional power supply
design: The High Frequency Switch Mode Power Supply. Because of this pioneering
use of advanced technology, some explanation is in order.
Conventional supplies operate at 60Hz (Standard Line
Frequency) recharge only 20 times per second, requiring
their storage capacitors and transformer to be quite large to supply the energy
needed to cycles, when power is not available from the wall. The power supply
must act as a local reservoir of power from which the amplifier circuits draw.
Their storage function is responsible for much of the bulk, weight and cost of
the traditional power amplifiers.
The Stewart-High Frequency Switch Mode Power Supply
fully recharges 120,000 times per second, (1,000 times faster than conventional
supplies), requiring far less capacitance for filtering and storage. The high
speed recharging reduces power supply "sagging" common with the other designs.
In a Stewart Amplifier, it is almost as though power is fed directly from the
wall to the speaker, with the amplifier acting only as the "valve" in between
to control it's flow. This power supply's remarkable efficiency at converting
the energy from AC line to a usable form for loudspeaker applications allows
many of the major components to be downsized, saving weight, and cost.
Intelligent Short-Circuit Protection
Stewart amplifiers employ circuitry which fully protects the amplifier while
avoiding any sonic compromises. A unique circuit monitors the current drawn
from the power supply. The amplifier's output is not affected in any way until
the load impedance drops below 2 ohms, indicating the presence of a short.Under
these conditions the power supply will simply shut down until the short is
removed, at which the power supply will slowly ramp up to full, protecting the
load from a surge of high power. In the event of an amplifier malfunction this
circuitry will also protect the speakers, since the power supply is immediately
disconnected from the amplifier. This operation is provided independently for
each channel; therefore, a fault condition in one will not affect the other.
Incredible Efficiency
The High-Frequency Switch Mode Power Supply and Class H amplifier design in the
World Amplifiers adapt to the demands placed upon them, enabling the amplifier
to run with maximum efficiency regardless of load impedance. Thermal management
problems normally associated with amplifiers of this capacity are therefore
greatly reduced. Resources otherwise applied toward dealing with thermal
problems can be put to better use in higher quality, active components for
increased reliability and improved performance. Due to this incredible
efficiency, 5 World Amps can typically run on one standard 20 amp circuit (as
compared to the competition, which can run just one amplifier on the same
circuit.) Additionally, an inrush current limited minimizes power drawn from
the wall during power-up. There is no need for staggered turn-on configurations
or other preventative measures when using multiple amplifier setups, as current
drawn during turn-on is only 6 amps per unit (70-180 amps is typical with more
conventional designs.)
Superior Sonic Performance
Stewart's Engineering Team has been responsible for many key contributions to
the Professional, Sound Contracting, and Consumer Electronics Industries over
the years. In fact, products designed and manufactured by Stewart have won over
30 awards for sonic performance and pioneering of new technologies. The World
Amps are one of the most significant contributions to amplifier design in 60
years. Applying Stewart's expertise in developing sonically superior products
and incorporating the technology of the High-Frequency Switch Mode Power Supply
were major steps in making the World Units exceptional. Unlike most other
professional power amplifiers, the World units produce sound which is smooth
and uncolored, while offering very full detailed low end response and tons of
horsepower. If you are in search for the perfect balance of technology and
sonic superiority, you need look no further.
Signal to noise ratio- over 100db
Slew rate- more than 30v/microsecond
Damping factor- over 500
Bandwidth- 15hz to 45khz
Key Benefits
- 1U Models Convection Cooled
- Clean Full-Range Dynamic Power
- High Speed Switching Power Supply
- Balanced Inputs
- Bridgeable - Drives 2 ohm Loads
- World Class Reliability
World 1.6:
300w@8ohm, 600w@4ohm, 16#
STEWART WORLD 1.6 POWER AMP
