Download Model 5 brochure

The MODEL5 is not only an ideal amplifier when
connected to high impedance horns, but even
excels with critical speaker systems. Although it’s
damping factor is allegedly not very high, the DSSF
concept ensures optimum control and surprisingly
neutrality even at extremely low impedances.
buffered by capacitors. For the power transistors
40,000uF of capacitance ensure ample reserves
for the relatively small output of this amplifier.
OTHER FEATURES
The MODEL5 integrated amplifier has five RCA
POWER SUPPLY WITH 7 VOLTAGES
The power supply of the MODEL5 utilised a specially
manufactured toroidal transformer with a total of
7 secondary windings! This expensive power supply
configuration is a surprise if you consider that normal
amplifiers can operate with only one voltage.
But Matthias Ruff has his own philosophy in this
respect: “In the MODEL5 we work with a minimized
circuit design but ensure the extensive power
supply is absolutely stable in all operational modes”.
The special transformer provides (with its shielded
secondary windings) a total of 7 different voltages
for the independent electrical supply of the different
circuit modules, power transistors, displays, relays
etc. Interferences are minimized, as the supply of
power to the different components is completely
independent from each other. The toroidal transformer
has a static and magnetic shielding to avoid
electromagnetic radiation into the other components.
The power supply of the various circuit modules is
INPUTS. As an option INPUT 5 can be reconfigured
internally with a jumper into AV-mode. In AV-mode
the volume control of the MODEL5 is bridged for
the INPUT 5. If you want to integrate your high-end
stereo within your home theatre system, you simply
have to switch the input selector to INPUT 5. The
volume of the left and right front channels is then
centrally controlled by the AV processor.
The MODEL5 has one RCA RECORD-OUT, one
PRE-OUT with XLR connectors for use with active
speakers (ex. SOLO) and a SPEAKER-OUT fitted
with WBT connectors is used for the connection to
the main passive speaker systems.
The main power switch is located at the backside of
the unit. Here you can completely turn the MODEL5
off and detach it from the mains. In the STANDBYposition
of the input selector, a red LED in the display
indicates that the amplifier is ready for operation.