Acapella Audio Arts Duke Instruction Manual - King, Queen & Duke
King, Queen & Duke
KING integrated pre - power amplifier
Casted dustproof resonancefree aluminum cabinet. Cooling is implemented over the
complete surface and garanties constant thermal environment for all electronic parts.
Professional in and output sockets. Power output with 3-pol gold plated XLR Connectors.
The special standby mode for the input stage eliminates the warm-up phase.
The volume control is regulated by a special photoresistor circuit.
This circuit prohibits sound decay and mechanical fallout.
Power ability is contributed by the oversized ring core transformer 250VA.
Microcomputer controlled anti clipping circuit without influence in the direct signalpath.
The volume is automatically turned down to prevent power distortion or speaker damage.
All functions are controllable via remote control. The volume control, as well as the turning
on and off are adjustable directly on the frontpanel. Adjusted volume is signalized by
a five row three colored LED display. The three input channels by three LED´s.
Input voltage:
1,5 Volt
Input resistance:
47 kOhm
Output power:
2 x 32 Watts at 8 Ohms
2 x 62 Watts at 4 Ohms
Minimum impedance:
> 1,5 Ohms
Overall feedback:
< 6 dB
Distortion:
< 0,1% only K²
S/N ratio:
< -70 dBV unweighted
Channel difference:
<+/- 0,2 dB
Power bandwidth:
5 Hz - 250 kHz
Dimensions (w x h x d):
280mm x 312mm x 100mm
Weight:
8,2 kg
DUKE loudspeaker
Casted aluminum cabinet with integrated antiresonance ribs.
Bass reflex labyrinth and speaker back armoring to eliminate uncontrolled vibrations.
Professional 3-pole gold plated XLR sockets for secure connection.
Special designed two way system with coax position of the tweeter.
170 mm woofer with coated carbonfiber membrane, extremely stiff and
resonance free. Long distance voice coil and large ceramic magnet system.
Tweeterconstruction consisting of lightweight silkmembrane and neodymemagnet.
Crossover with coherent amplitude and phase correction
Frequency response:
42 Hz - 24 kHz
Crossover:
6 and 12 dB / Okt.
Turnover:
3,2 kHz
Efficiency:
88 dB / W / m
Impedance:
8 Ohms ( min > 6 Ohms at 15 kHz )
Power handling:
60 Watts
Dimensions (w x h x d):
220mm x 312mm x 245mm
Weight:
9,5 Kg