The GUSTARD H10 headphone amp is very popular among Head-Fiers. At $350 USD it delivers great performance and it is also well loved by DIYers.

Among the many DIY tweaks available for the H10 op-amp upgrade is the easiest and most effective.

Here is one of our customers who upgraded his H10 with one pair of dual and one pair of single SS Opamps:


Here is the active and ongoing discussion about the GUSTARD H10 on Head-Fi:


Happy listening and modding!
Burson Audio