What is the "intrinsic gain" of the Aleph P, and how do you adjust it?
The intrinsic gain is controlled via the left and right channel gain controls to achieve optimal performance with different source levels; for high-level sources, the gain is reduced, and for low-level sources, it is increased.
How does the volume system work with the master level control?
The master level control uses a discrete 256-position attenuator and features four poles, ensuring precise volume control; the active gain circuit remains constant regardless of the master volume level.
What inputs and outputs does the Aleph P have, and what about balanced and unbalanced connections?
There are four sets of input connectors and two output connectors; the preamp supports both balanced and unbalanced inputs and outputs, and can convert signals between these modes without additional switches or adapters.
What is the output level in balanced and unbalanced modes?
The maximum output is approximately 15 volts RMS for balanced output and around 8 volts RMS for unbalanced output.
How does the Aleph P perform at lower loads, and what impact does that have on distortion or gain?
The Aleph P can act as a current source when driving a low-impedance load approaching a short circuit; although the gain does decrease at lower impedances, no additional distortion occurs.
How does the input selection function work, and what kind of visual feedback is provided?
The input is selected using a rotary knob on the front panel; the selected input is indicated by a blue LED above the knob.
Is there a remote control, and if so, what does it control?
Yes, there is an optional remote control; it changes the input selection using the left/right buttons and adjusts the master volume using the up/down buttons.
What is the frequency response of the Aleph P?
The –3 dB points are at approximately 5 Hz and above 100 kHz, resulting in a very wide frequency range with minimal roll-off at both ends.
What about noise level, crosstalk, and common-mode rejection?
The noise floor is below -120 dBV (20–20 kHz), crosstalk is approximately -90 dB, and common-mode rejection is around -80 dB in the 20–20 kHz range.
What power supply does the Aleph P use, and how is the internal power supply configured?
The preamp uses a toroidal transformer with an unregulated 85-volt system, followed by active regulation and passive filtering to power the constant-current sources; switches and control systems have their own regulation.
