AMP51Pure
by Martin Clausen (mc AT rotgradpsi DOT de)
High-End Audio Amp Controller
Table of contents:
- 6 stereo inputs
- Each input can be set to mono, stereo or inactive
- Volume control from -96 to 16 dB in steps of 0.5 dB, noise free transitions
- Preamplification from 0 to 15.5 dB in steps of 0.5 dB individual adjustable for each input
- Balance with +/- 64 steps
- Volume, balance- and preamplification control with PGA2310, PGA2320, PGA2311 or CS3310
- Mute
- 0,0004% TDH+N at 1KHz
- Record output
- Speaker output
- Control with 6 buttons and rotary encoder
- Dynamic step size control for the rotary encoder
- Remote control with RC5, device learns address
- Display: backlight LCD or fluorescence display, size 2*16 or 2*20
- Brightness for power-on and standby individual adjustable for fluorescence display
- Time controlled power down of fluorescence display possible
- Inputs can be named by the user
- Displays time, weekday and date (can be disabled)
- LEDs for balance, mono and standby
- Battery buffered clock
- 16 alarms with weekday, time input and volume programmable
- One time timer for power on
- Sleep
- Battery backup of all adjustments
- Low active clipping and error input
- Delay for speaker relays
- Prepared for Serial program version information system
Because the concept is modular, there are 6 schematics:
PCB and programmed controller (V15) available on request!
The part description in schematics is read as follows:
part type + value in exponential form + package description + subpart number in package
for example: C1040805,1 means Capacitor, 100nF, package SMD 0805, first subpart in package
Contact via: mc AT rotgradpsi DOT de
