Got my TwoQuiet upgrade and installed it the same night. It made a very noticeable difference. The separation from silence to music is pretty amazing. Also seemed to enhance the bass. Here are some pictures after the upgrade.
Next upgrade for this amp will probably be some nice large output capacitors. I am about to search the forum for recommendations, but if anyone has any let me know. Also any other suggestions? These next upgrades are a mix of wanted to try to make it even better and just wanting to tinker. This has been my first year doing any kind of soldering and have become addicted.
Current kits in order of build include:
1. Quickie (Pretty amazing Price/Performance)
2. Quicksand (Used only for low impedance headphones right now)
3. Crack-a-two-a
3. Eros
4. TwoQuiet upgrade for Crack-a-two-a
Future Plans
0. Making a Raspberri Pi based audio server with I2S (No USB or SPDIF) DAC
1. Yet to be named Bottlehead Speaker
2. Kaiju
3. BeePree 300B