Pre/Power Amplifiers

While Ethernet connections on pre/power amps are typically reserved for firmware updates/system monitoring, here they allow the L1 and M1.1 to be driven by CH Precision’s Control app, alongside other components. At present the software only runs on Android devices, a by-product of the brand’s desire to do everything ‘in-house’, but an iOS iteration is now in the pipeline.

The app is quick to find connected hardware, and the interface makes it simple to switch between devices. For the M1.1, settings include global feedback [see boxout], amplifier ‘mode’ and gain. The ‘Status’ screen mirrors that of the amp’s display, showing operating temperature, real-time power output [see PM's Lab Report], selected input and feedback setting. Options for the L1 include input renaming/hiding, gain and impedance, channel balance, start/max volume, and more. You can even alter the colour of the display text, via RGBCMY sliders, and set your phone/tablet’s physical volume keys to control the system volume.

CH Precision says the galvanic isolation of its network boards negates any impact their operation might have on the L1/M1.1’s sonic performance. Moreover, it says removing the Ethernet cable, once setup is complete, also disables the network circuit. Do that, though, and you won’t be able to make any on-the-fly changes from the comfort of your listening position…