This output stage proposed by Allo is intended to be associated with DAC Allo Katana (sold separately). This is the Pure THD+N version of the output stage, with the particular feature of having been carefully calibrated and measured to improve the harmonic distortion rate. This output stage ensures a THD+N of -112.9dB for a sound of incredible transparency and precision.

These adjustments were made at the integrated AOP level. These are discrete operating amplifiers from SparkoS Labs, branded as specialized in the design of high-performance audio components. Thus, the brand has a particular know-how enabling it to offer exceptional PDOs. The output stage proposed here therefore includes no less than 6 discrete SS3601 discrete AOPs, filtered at the input and output with LDOs for a largely attenuated noise.

On the connector side, this output stage has an asymmetrical RCA Stér;o RCA. It is also possible to add a balanced XLR output, Allo having provided soldering points to add XLR subbases to the modules (XLR subbases sold separately).

Allo also offers a second version of its output stage, called Pure THD+N which is based on concrete measures to reduce distortion to a minimum.