Description
Stereo amplifier, power 50 W per channel (8 Ohms), 70 W per channel (4 Ohms). Frequency range 5 Hz - 100 kHz, sensitivity 100 mV, input impedance 47 kOhm.
The Atoll IN 50 Signature complete amplifier occupies the next step after its older brother IN 80SE in the line of the French company Atoll Electronique.
The model received a metal body with an aluminum facade. The developers managed to combine a minimalist design concept with a pleasant appearance. On the left side of the front panel there is a company logo, visually balancing the right side loaded with controls. The central place is occupied by the volume knob, which is attached to the Alps RK-27 potentiometer. On the right is a mini-jack for headphones, a power button with a corresponding indicator, as well as an input selector, which consists of two vertically located keys. Relays are used to switch between sources, and LEDs located in a semicircle indicate which input is currently active.
The Atoll IN 50 Signature amplifier has a classic circuit design, where there are no additional circuits, for example, tone control circuits, which contributes to a short signal path. The element base consists of specially selected components, which also include audiophile MKP polypropylene capacitors. The output section contains MOSFET transistors. The model produces 50 W at 8 ohms and 70 W at 4 ohms. Power is provided by a toroidal transformer located on the left side of the housing. The total capacitance of the power supply capacitors is 17874 μF.
Inputs: Five RCA (including recording monitoring jacks) and BY-PASS, allowing you to feed the signal directly to the power amplifier stages. Outputs: RCA for recording, two pairs of preamp jacks. Optionally, the IN 50 Signature can be equipped with a phono preamplifier board. In this case, one of the linear inputs will be used. The following modules are available for installation: P50 (for MM cartridges) or P100 (for MM/MC cartridges). To connect the acoustics, two pairs of screw terminals are used.
Atoll IN 50 Signature has superb musical talents. The bass is quite articulated, the midrange is well defined, and the high frequencies are open and clear. The model is able to construct a correct three-dimensional scene. The ideal option for working in tandem with the IN 50 Signature would be bookshelf speakers that match its class. To obtain more fundamental low frequencies, the amplifier can be connected to small floorstanding speakers.
