I have available one only brand new One-Zero-One Dual Mono Block power amplifier for sale!
it is fitted out with the power supply expansion board for a total of 80,000uf of supply filtering.

The price is $300.00AUD off the normal price!

Product details are found at the link below.
https://holtonprecisionaudio.com/collections/power-amplifiers-class-ab/products/holton-one-zero-one-r3-dual-mono-power-amplifier