| Research | | | | | Audio Research
| | Cycling Research | | | | |
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| These types of networks closely model the initial mastering RIAA equalization. This method is overlooked in most modern phono-preamp due to cost cutting.
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| This is a collaboration of methods I have come across that can help you in the proper setup of your road or track bike. | | | | | | | | | Directly Heated Triode (DHT) Amplification | | | | 
| The most ancient amplification method has hidden qualities forggoten in the modern age of solid state amplification and cold IHT tubes. | | | | | | | | | | | | Passive Latter Stepped Attenuation | | | | 
| The cleanest method of volume control bypassing useless preamp amplification that acts as a redundant stage in a low source output world. | | | |
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