The Atoll IN80 Signature full amplifier takes the next step after its older brother, the Atoll IN100 Signature, in the line of the French company Atoll Electronique. The model received a metal case with an aluminum facade. The developers managed to combine a minimalist design concept with a pleasant appearance. In the upper central part of the front panel is the company logo. The central place is occupied by the volume knob, which is attached to the Alps RK-27 potentiometer. On the right there is a mini-jack for headphones, a power button with a corresponding indicator, and an input selector, which is two vertically located keys. Relays are used to switch between sources, and LEDs located in a semicircle indicate which of the inputs is currently in use.
The Atoll IN80 Signature amplifier has a classic circuit design, where there are no additional circuits, such as tone control circuits, which contributes to a short signal path. The element base consists of specially selected components, which also include audiophile polypropylene MKP capacitors. The output section contains MOSFET transistors. The model produces 80 W at a load of 8 ohms and 120 W at 4 ohms. Power is provided by a toroidal transformer located on the left side of the case. The total capacity of the power supply capacitors is 17874 μF.
Inputs: five RCA (including connectors for recording monitoring) and BY-PASS, allowing you to feed the signal directly to the power amplifier stages. Outputs: RCA for recording, two pairs of preamplifier connectors. Optionally, a phono preamplifier board can be built into the IN80 Signature. 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). Two pairs of screw terminals are used to connect the speakers.
Atoll IN80 Signature has excellent musical talents. The bass is articulated enough, the midrange is well-drawn, the high frequencies are open and clear. The model is capable of building a correct three-dimensional scene. The ideal option for working in tandem with IN80 Signature will be bookshelf speakers of the corresponding class. To get more fundamental low frequencies, the amplifier can be paired with small floor-standing speakers.
Specifications of Atoll IN80 Signature
Nominal output power 80 W per channel (8 Ohm), 120 W (4 Ohm)
Pulse output power 90 W
Input sensitivity / input impedance 100 mV / 47 kOhm
Frequency range 5 Hz – 100 kHz
Signal-to-noise ratio 100 dB
Inputs five RCA; one BY-PASS (RCA) for feeding the signal directly to the power amplifier section
3.5 mm headphone outputs, RCA for recording, two PRE OUT (RCA) preamplifier outputs
A phono preamplifier is available as an option, for installation inside the amplifier you can use proprietary modules P50 (for MM cartridges) or P100 (for MM/MC cartridges)*
Power supply toroidal transformer with a power of 170 VA, the total capacity of the buffer capacitors is 17,874 μF
Output to speaker systems 2 pairs of gold-plated screw terminals
Dimensions (WxHxD) 440x90x300 mm
Weight 8 kg
