睿志音响

	Wisdom in mind, enthusiasm at heart.

C-2.2
Headphone Amplifier / Preamp
Applies ACSS
Class A designed
Price: USD365

Summarize

Use Manual

Specs

Technology Detail

Shipping Cost

The C-2.2 functions:
        Front plate:
        Volume knob: Control the volume level of the headphone/pre amp.
         Gain button: Push in for high gain (+13DB), out for low gain (+4DB). Only available while using RCA input. ACSS input is always set at High gain regardless of the Gain button for the best sound level.
      Pre button: Push in for preamp output, out for headphone output.
      Selector knob: Select input signal between 1(RCA) and 2(RCA) and 3(ACSS)

　

OPA (The C-2.2 applies the OPA604 in default configuration.) （The C-2.2 owners can replace the single-channel OPA604 opamps with Audio-gd Discrete single-channel OPAs for choosing different flavors. But while replacing the OPA owners can't install it in the wrong direction. See the photo below to confirm correct installation direction. (The OPAs affect sound flavor only with RCA input.) http://www.audio-gd.com/Pro/diy/OPA/OPAEN.htm
Single EARTH	USD20/Pair	Sounds fairly neutral.
Single MOON	USD20/Pair	Sounds a bit tube-like, that is, a little soft, warm and musical.
Single SUN	USD20/Pair	Sound dynamic.