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 Crayon Audio CIA-1 T Stereo Amplifier 


The CIA-1 is a stereo integrated amplifier with four inputs. Optionally, one of them can be designed as a phono input. And it is possible to switch to power amp mode



The casing is made of CNC milled Aluminum, chemically shone anodized Aluminum, CNC milled buttons with Teflon guide tracks and CNC milled feet featuring special synthetic inlays, with optional stainless steel spikes.


The heat sink and casing are thermically decoupled, making higher interior temperatures possible.


Style wise our main influence is Bauhaus, straight lined, form following function, simple and plain design.


Power adapter

Crayon is using switching power supplies, both because of their high degree of efficiency and their exactness, with input and output being thoroughly decoupled. All modules are equipped with special capacitors, the switching power supply being used to charge them.


Circuit and construction

The circuit board is a 6 multilayer-design, a 3D system for conductor tracks with maximized shielding and linearized energy propagation. This way we can ensure the shortest possible tracks. State-of-the-art circuit board technologies like broadband Dirk decoupling of supply voltages up to 1 GHz ensure extremely high electrical stability along with minimal electromagnetic interference coupling.


The output stage is implemented by a bridge amplifier, meaning the loudspeakers are connected between two output stages. The fact that this design is superior justifies the high effort of using 4 output stages.


Channels are switched using CMOS switches, technology also used in professional studios. LEDs indicate active channels along with turn-on- and off-sequences.


The [MC] LED indicates Moving Coil or Moving Magnet setting.


Channels can be chosen using a button or remote control.A ALPS motor potentiometer is used to regulate volume, the position of the potentiometer indicates the volume.


All inputs are decoupled using current compensated chokes. This type of broadband chokes dampen symmetric HF-signals from 1MHz up to >300MHz without influencing the (asymmetric) input signal. This also leads to the RCA jacks ground being HF decoupled as well.


The CIA and CFA Phono amplifiers feature a MM capable current input. Even though adapting input resistance isn't necessary 99% of the time, its still possible.


The CIA-1 BLACK´s special feature is the option of either four Line inputs or three Line inputs and a Phono preamp.



Our models are available in classic natural Aluminum finish or timeless elegant black.

Crayon Audio CIA-1 T Stereo Amplifier

  • High quality aluminium casing

    Speaker output 2 x 180 Watt / 4 Ohm (2 x 90 Watt / 8 Ohm)

    4 Line inputs or 3 line inputs plus 1 phono input

    1 Record and 1 regulated output
    ergonomic remote control

    Baseplate doubles as heatsink

    LED indicators, input selection button, on/off switch, volume control, stand-by switch, switch to power amp mode


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