Description
The FLS 10 is a high-end stereo integrated amplifier from Audia Flight. Its architecture is based on that of the FLS 4 stereo power amplifier, from which it inherits the technology, speed, and control and power delivery capabilities.
The preamplification stage adopts a symmetrical dual-mono configuration, with a high-quality volume control. The unit offers a balanced output, an unbalanced output, and a fixed output dedicated to recording, as well as three unbalanced inputs and two balanced inputs. Each input can be enabled or disabled independently, its gain adjusted over a range of ± 6 dB, and renamed according to the intended use. This level of adjustment granularity allows the level and configuration of each connected source to be precisely tailored.
The brushed aluminium chassis, with a cover engraved with the Audia logo, is accompanied by a remote control also made of brushed and anodised aluminium. A blue OLED display completes the presentation, in keeping with the unit's high-end positioning.
Thanks to its power and control capabilities inherited from the FLS 4, the FLS 10 is particularly well suited to low-efficiency speakers with a challenging impedance curve, dropping as low as 2 ohms. It is aimed at enthusiasts of demanding stereo setups, with speakers that are difficult to drive and who seek fine control over each source.
The unit can accommodate several optional expansion cards: a phono card with two MM and MC inputs, a card adding two further RCA or XLR inputs, and a DAC card with five inputs (one AES/EBU, one S/P-DIF, two TOSLINK, one USB supporting 32-bit/384 kHz in PCM and DSD 512) paired with a streamer.
Technical specifications
| Minimum supported impedance | 2 ohms |
| Gain adjustment per input | ± 6 dB |
| Unbalanced inputs | 3 |
| Balanced inputs | 2 |
What to check before buying used
Test the relays of the selected input and check for no crackling on the motorised potentiometer when adjusting volume, particularly at low levels. Check the blue OLED display (dead pixels, brightness uniformity) and the responsiveness of the aluminium remote control. A check of the dual-mono power supply capacitors is recommended on an older unit, as is checking for the absence of hum at idle on each input, both balanced and unbalanced.
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