Problem: No Sound
Problem: No Video on TV
Problem: Remote Control Issues
The keyword “better” implies an upgrade. For the AVR 51, “better” does not mean buying new gear – it means exploiting what you already own. The user manual (especially a revision like 134) contains schematics, hidden button sequences, and calibration curves that are impossible to guess. harman kardon avr 51 user manual 134 better
One user on AVS Forum reported: “After finding the manual for my AVR 51 and setting the EZSET to manual override, my $50 thrift-store receiver now sounds like a $1,500 modern amp. The ‘134’ phase correction trick saved me from buying a new center channel.” Problem: No Sound
| Feature | Official spec | Reality | |---------|--------------|---------| | Power | 5 x 50W (20-20kHz, 8Ω) | Realistic: ~40W/ch all channels driven | | DAC | Analog Devices | 24-bit/96kHz for stereo, 48kHz for DD/DTS | | Sub crossover | Fixed at 100Hz | Cannot adjust – sub’s own crossover must be set to 100Hz or higher | Problem: No Video on TV
The EZSET is convenient, but manual is better.