Topping's Pre90 is a high-performance preamplifier based on a fully balanced circuit and high-performance NFCA modules. It also benefits from a high quality volume attenuator and easy control, thanks to its front panel display.

Balanced circuits

The Pre90 adopts a fully symmetrical structure, allowing both symmetrical and asymmetrical signals to be processed. The output can thus be balanced, unbalanced, or a combination of the two options. In addition, with its balanced and unbalanced inputs, the Pre90 can be used to convert balanced to unbalanced or, conversely, unbalanced to balanced.

Amplification of weak signals

With a maximum gain of +16dB, the Topping Pre90 can easily amplify weak input signals to an acceptable level to deliver to your amplifier. In addition, its 0.3µVrms noise level is extremely low, so the Pre90 does not add any audible noise during signal amplification.

Volume attenuator

Using a number of high-quality Japanese relays for its volume control, the Pre90 allows precise adjustment of the sound level, while maintaining perfect channel balance. In addition, if the volume level was high when the unit was turned off, the Pre90 will automatically reduce the sound level the next time it is turned on to preserve your audio system and hearing. It is also possible to use and adjust the "Safe Volume" function, which allows you to indicate a maximum volume level (this function can be deactivated).

Topping Ext90, a perfect extension for maximum versatility
Optional product, sold separately

The Pre90 offers a balanced XLR input and an unbalanced RCA input. The Ext90 is the perfect companion to the Pre90, providing two unbalanced RCA inputs and a total of four balanced XLR inputs. Ideal for a multi-source system.

Volume memory

The Pre90 has an independent volume memory for each input or output. When several inputs with different levels are connected, changing the active input often requires readjusting the volume level . The volume memory thus allows automatic adjustment to the last saved parameter for each input. It is possible to choose to use this memory for the outputs, in order to adapt the level according to the destination amplifiers.