Fredenstein Bento 8 Pro Pure Analog Module Carrier
The Fredenstein Bento 8 Pro features a complete linear power supply consisting of a mains
transformer and linear regulators. This topology yields the cleanest power to your modules.
Usually linear power supplies can't deliver high output currents, but Bento 8 outputs +/-16V DC 2A
and +48V DC 0.25A, 500mA per slot, that's ample power for the most demanding 500 series
modules!
Another drawback of linear supplies is that they are prone to introduce hum magnetically from the
mains transformer directly into input and output transformer inside modules, especially when
plugged into the slot closest to the supply. Bento 8 Pro incorporates extensive magnetic shielding of
the mains transformer to eliminate induced hum.
In addition, Bento 8 Pro features a monitoring section. A discrete stereo headphone amplifier, VU-
meters, and independent slot output selection for L and R channel. If you want to listen to a mono
signal, set both selectors to the same slot. The independent selectors give you complete freedom of
selecting your source, the even allow to reverse the stereo field by selecting the left channel to the
right slot and the left channel to the left slot. The left VU-meter is connected to the selected L slot
and the right meter to the selected R slot.
The Bento 8 Pro is constructed of the highest grade components:
1.5mm (59 mil) Steel Chassis, Toroidal Mains Transformer with two built-in thermal fuses,
Schottky diode rectification, all Nichicon electrolytic capacitors rated for 105 (221 ), etc.℃ ℉
Built-in Audio Routing:
Modules can be daisy-chained by simply flipping switches on the back-panel.
Compressor buss linking:
Compressor modules can be linked by engaging switches on the back-panel as well.
Ground-lift switch:
In case of ground loops, the audio ground and the protective ground can be disconnected. Please use
only if absolutely necessary.
Installation:
Please make sure the unit has the correct mains voltage rating for your country.
(See label on the rear)
Electrical Safety Warnings:
Do not open the enclosure, hazardous voltages are present inside!
There are no user serviceable parts inside.
Always disconnect the mains cord before installing or removing modules!
If you need to replace the mains fuse, make sure the replacement has the same
rating (3AT 250V, slow blow).
Make sure each installed module is well seated in the receiving connector and
the module is secured by fastening the two mounting screws.
Fredenstein Bento 8 Pro Manual V1.0 Dec 16, 2019 Page 1
