| 300w tube amp monos - which one? | jasonbourne71 | 757 | 4 | |
| Used vs new Tube mono amp? - same model | knotscott | 799 | 8 | |
| Virtual systems, finding my favorites | toro3 | 1357 | 3 | |
| So many YouTube clips to evaluate sound quality. Why??? | mofojo | 3783 | 57 | |
| Hybrid amplifiers Ss/tube, any good? | emergingsoul | 1508 | 8 | |
| How do I know if my systems any good? | jtgofish | 3896 | 56 | |
| Ipad app sound level meters vs a portable sound level meters | elliottbnewcombjr | 1075 | 6 | |
| Amplifier circuitry-4 ohm vs 8 ohm | ditusa | 5586 | 29 | |
| Level adjusting speaker drivers | elliottbnewcombjr | 1486 | 23 | |
| Mcintosh 2301 tube amplifier, how much power used from the wall? | emergingsoul | 1632 | 13 | |
| Do amp manufacturers provide heat index information? | erik_squires | 676 | 3 | |
| Worth upgrading from MC611 to MC901? | james633 | 2629 | 8 | |
| Mcintosh mc451 mono - anybody use this new dual amplifier? | steve59 | 2097 | 17 | |
| Crossover - hard to find for biamping | nevada_matt | 1469 | 11 | |
| Demise of bass quality in Main speakers | kingharold | 4146 | 40 | |
