Feature

●?TOPPING Pre90 Preamplifier: Fully balanced amplifier structure for both balanced and single-ended signals. Pre90 could set volume memory for each input or volume memory for each output. More easy operation with the remote controller.
●? Selectable XLR / RCA output: The output of Pre90 could be config to “XLR only”, "RCA only" or "XLR + RCA ". Therefore, the amplified signal can be connected to two different amplifiers. Good combination with EXT90 D90.
●?Ultra-high Performance NFCA modules: It provides excellent DC and AC performance. Ultra-low noise of 0.3uv is milesahead of the competition, giving an absurdly high dynamic range of 145db and no audible noise and darkest background.
●?Ext90 could extend you more inputs: A standard Pre90 provide you 1 x RCA and 1 x XLR stereo inputs. But when it working with a Ext90, they could provide totally 2 x RCA and 4 x XLR stereo inputs. This is enough for multi source systems.
●?Relay volume control: A large number of high quality Japanese small signal relayIsed fovolume control of Pre90. Brings the advantages of precise control remote control, longevity, and complete channel balanceIf the volume was set high while turn on or switch in, Pre90 will automatically reduced to a safe volume to avoid your speakers/headphones blown by sudden high volume.


Description

TOPPING PRE90 Preamplifier Preamp Amplifier Pre-amp Ultra-High NFCA Modules RCA Balanced XLR Output for D90 A90 EXT90 Audio DAC with Remote Control
Please dont return it directly, Any question, please contact the seller, we will help you solve it.

Safe Volume, so you dont get shocked: The safe volume feature on Pre90 will kick in when the saved volume ofle target input or output exceeds the set safe volume, and reduce thoutput to safe volume, protecting your expensive equipments and yourpriceless hearing. The safe volume function can be turned off in thesettings.

Ultra-high Performance NFCA modules: Pre90 uses the similar NFCA ( Nested Feedback Composite Amplifier )module from flagship A90 Voltage Current hybrid feedback architecturelong with UHGF ( Ultra High Gain Feedback ) technology provides excellent DC and AC performance. Ultra-low noise of 0.3uv is milesahead of the competition, giving an absurdly high dynamic range of 145db and no audible noise and darkest background.
Relay volume control: A large number of high quality Japanese small signal relayIsed fovolume control of Pre90. Brings the advantages of precise control remote control, longevity, and complete channel balanceIf the volume was set high while turn on or switch in, Pre90 will automatically reduced to a safe volume to avoid your speakers/headphones blown by sudden high volume.

A wire with amplification: An excellent preamp should have top performance, just like a wire that can amplify signals. As you can see, Pre90 did it.

Ext90 could extend you more inputs: A standard Pre90 provide you 1 x RCA and 1 x XLR stereo inputs. But when it working with a Ext90, they could provide totally 2 x RCA and 4 x XLR stereo inputs. This is enough for multi source systems.

Note: The actual noise level is obtained by boosting the noiseof Pre90 by 40db using a low noise amplifier in front of the APX555B then dividing the measured noise by 100 times.