iHA-32-Z Headphone Amplifier + iPSU-1-Z

This is the high-end headphone amplifier iHA-32-Z and its external power supply iPSU-1-Z. This is a rare product that is seldom listed for sale.

After purchasing the iHA-32-2013 new, I had the main board replaced for the Z upgrade. At the same time, the iPSU-1 was also upgraded to the Z version through the kindness of the manufacturer, izo. I was told this was a service provided because I had previously requested a Z upgrade for the iDA-1, and since it was free, I did not receive any specific invoices. For your reference, I have included documentation for the iDA-1-Z.

While I handled it with care, there is some paint peeling on the volume knob (photo 7) and some scuffing on the top leather depending on the angle of the light (photo 6). However, these do not affect its use in any way.
Otherwise, it is in very good condition, having been used in a non-smoking, pet-free environment, so there is no odor transfer.

The top leather was intentionally left black during the Z upgrade (Z models typically have red leather). The iPSU-1-Z did not have leather attached.

For these reasons, this is a rare model with unique original elements.
It was operating normally until just now, and I have confirmed that all inputs and outputs are functioning correctly.

As shown in photo 9, all accessories are included. I will also include documents with personal information redacted.
Please feel free to discuss the price.
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This is a headphone amplifier that supports dual mono and full balance processing. It is a model that has undergone further high-sound quality tuning called zTune. It features a matching of numerous high-quality capacitors and top-class high-end OPAMPs, and the included dedicated power supply has also been newly tuned for the iHA-32-z.

The amplifier section's electrolytic capacitors are ELNA RBD non-polar audio grade components, and the power supply section's electrolytic capacitors are high-grade, low-ESR Panasonic products.
The amplification stage uses four metal CAN type OPA627BM operational amplifiers, the buffer stage uses four AD845KNZ at the input and LME49990 at the output. The analog output stage operational amplifier is a MUSES02 from New Japan Radio.

The dedicated power supply iPSU-1-2013 has also been enhanced. All electrolytic capacitors have been replaced with Panasonic audio grade components. This is a fully customized model, shipped after approximately 50 hours of testing and aging, with a monthly production limited to 10 units for quality control.