Leema-acoustics Essentials High Resolution Phono Amplifier Instruction Manual - page 3
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C Bass cut switch. Using a suitable small pointed object such as a small screwdriver,
the bass cut can be switched in or out of circuit as required, by pushing the small
latching switch accessed through a small hole next to the power input connector.
As can be seen above, when the switch is down (pushed in) the bass cut
(rumble filter) is switched in to the circuit.
D Power input. This is where the included power unit is connected. Do Not use any
power supply which is not a Leema Acoustics supplied model. Doing so will
invalidate the manufacturer's warranty.
E Cartridge sensitivity. The input sensitivity is changed using the same method as
selecting the bass cut circuit. Using a suitable small pointed object, such as a
small screwdriver, the selection switch can be accessed through the small hole.
The unit is set for moving coil when the switch is up, and for moving magnet when
the switch is pushed down.
F Turntable input. The output RCA leads from the turntable plug in here. Ensure that
the left and right orientation is correctly observed.
Specifications
Moving magnet gain
36 dB
Moving coil gain
62 dB
Frequency response
+/- 0.5 dB ref RIAA curve 20 Hz to 20 kHz
Distortion
Less than 0.02 % at 1 kHz
Residual noise
Moving magnet better than -86 dBA input short circuit
Residual noise
Moving coil, better than -75 dBA input short circuit
Load characteristics
Moving magnet 47 k Ohm + 100 pF
Load characteristics
Moving coil 90 Ohms + 1 nF
Input sensitivity
Moving magnet 4 mV RMS for 250 mV RMS out at 1 kHz
Input sensitivity
Moving coil 180 uV RMS for 250 mV RMS out at 1 kHz
Headroom
Greater than +26 dB at 1 kHz
High pass filter
-3 dB at 20 Hz
Dimensions
H: 50 mm inc feet, W: 110 mm
D: 100 mm including earth terminal
Best regards................... The Leema Team