PIMETA Benchmarks

Below are some tests I've made of the PIMETA v0.012 vs. a META42 v2.5. The latter is a v2.2 board modified to accept BUF634 chips. The two amps were configured as closely as possible:

• PPA-like resistor config
• AD8620s in both amps' output channels, and an AD8610 in the PIMETA's ground channel.
• Buffers were left in low-bandwidth mode.

Grado SR-60 Load — The amps driving these 32-ohm headphones.

Sennheiser HD-580 Load — The amps driving thers 300-ohm headphoness.

No Load — The amps with no load, simply passing the signal through.