CH Precision L1 preamplifier (Certified preowned) in box

Certified preowned 

Any great line-stage must possess transparency, ultra-low noise performance and absolute stability. It must anchor the 
incoming signals and deliver them onwards, propelled from 
a firm footing that ensures dynamic and musical authority. 
It must pass the source signals in your system, without 
limitation or disturbance, leaving no trace of itself on them 
passage. Any great line-stage needs to be the next best 
thing to sonically and musically invisible, the hi-fi equivalent 
of effortlessly enacting its own audio superpower.
Like all CH Precision products, the L1 uses fully discrete, balanced 
and complementary design, ultra-short signal paths and
exactingly selected components. It is fed from heavily regulated 
and filtered power supplies, is wide-bandwidth, high slew-rate
and DC coupled. But in this critical application, that’s not enough. 
It’s one thing to eliminate unnecessary components from the
signal path and eliminate DC offset at the inputs, but the L1 takes 
things much, much further than that. Completely separate left 
and right channel circuit boards prevent crosstalk, while a super
sophisticated, software driven R-2R network for each channel
employs precision metal-film resistors and allows precise level 
control in 0.5dB steps with the minimum possible number of 
components. DC offset is monitored and eliminating not just
at the inputs but throughout the volume control ladder and at 
multiple points throughout the entire circuit. That makes the 
L1 not just one of the quietest line-stages ever built, it makes 
it one of the quietest in operation too. 
For a company that is renowned for the flexibility and 
configurable nature of its products, it is ironic that one of our 
most musically vital components is also our least adaptable. 
Although the L1 line-stage has an inherently modular 
topology, it offers only line-level inputs and comes fully 
loaded as standard. But that doesn’t mean that the L1 isn’t 
scalable and upgradable, with the option to add a second 
chassis for true-monaural operation and one or two X1 
external power supplies. Of course, the L1 is fully controllable 
via the CH-Control App, its inputs can be labeled, you can set 
overall gain as well as individual input offsets and you can 
even select a DC blocking capacitor on any input if necessary. 
But at heart, in terms of signal transfer the L1 is as stripped 
down and purist as it can possibly be. You can hear that in 
its performance: you will hear it in any system that’s built 
around an L1, whether in one, two, three or four-box form. 
As elegant in design as it is sophisticated in operation, as 
musically commanding as it is unobtrusive, the L1 brings a 
whole new sense to the motto, “We hide with pride!”