The Emperor Extreme stereo power amplifier uses a large toroidal power transformer and generously rated reservoir capacitors to deliver 600W RMS into 4 ohms with both channels driven, while providing excellent dynamics and bass control
It will drive any German Physiks loudspeaker and any other makers’ loudspeakers that we are aware of. Large heat sinks concealed within the case allow the unit to run continuously at high power whilst remaining cool, thereby improving reliability.
Both balanced and unbalanced inputs are provided.
The unit’s gain may be adjusted in three steps via the front panel. Each gain setting provides a slightly different “voice” allowing the customer to adjust the character of their system.
The differences, while not large are intended to allow the user to tip their system’s character slightly one way or the other and so provide some correction for an imbalance.
High voltage power supply rails for the low level signal stages and a balanced output stage ensure a very wide dynamic range, which combined with the design’s very wide bandwidth provides exceptional transparency and resolution
The heart of an amplifier is the power supply, so great care was taken with the design to ensure that it would be able to provide the audio sections with a source of power that was as stable and noise free as possible.
The low level signal section, power amplifier stage and control section all have their own independent toroidal power transformers. These were chosen for their low external magnetic fields. To minimise the effects of stray magnetic fields, all three transformers are housed in their own screened enclosures.
The amplifier’s incoming mains power is not routed through the power switch, as these can have a detrimental effect on the sound, more so with power amplifiers. Instead, this switch supplies power to the standby circuit and when the front panel On button is pressed, this turns on a high current relay which carries the mains power.
When a large power supply is connected to the mains supply, the initial in-rush current can be high enough to trip circuit breakers or blow fuses. To prevent this, a 4-stage soft start circuit allows the power supply to “slowly” charge before it is switched out of the circuit. This also reduces the stress on the power relay.
High quality power supply capacitors are used with additional decoupling capacitors located physically as close as possible to where they are needed in the circuit.
Great care was also taken with the internal grounding to prevent the introduction of noise.
Output power (Both channels driven)
300W RMS into 8 ohms
600W RMS into 4 ohms
0.5Hz to 80kHz (-3dB)
1W into 8 ohms
THD + Noise
0.01% (22Hz to 22kHz)
1W into 8 ohms
Maximum dynamic range
Signal to noise ratio
- 91 dB A
A weighted @ 1W into 8 ohms
33dB - analytical sound
30dB - neutral sound
21dB - warm sound
Unbalanced x 1 pair
Balanced x 1 pair
2 pairs of high quality WBT screw
terminals per channel
Infra red remote control
Trigger input & output for remote operation
Custom cable used for internal wiring
Silver anodized aluminium
474 mm W x 300 mm H x 474 mm D
As part of our process of continually improving our products, we reserve the right to change specifications without notice.