Simaudio 430HAD

Fantastic Sounding Simaudio 430HAD Headphone Amplifier with optional DAC. Retail price is $4300 w/DAC. The DAC was an $800 option at the time of purchase. This is still the current top of the line headphone amp from Simaudio. Its is also an excellent preamp.  In my own system it was used both for a Headphone Amp & Preamp.  This is an extremely versatile piece. Some minor use marks on the unit but they are very hard to see and photograph. 
Plenty of power to drive the most demanding headphones. I have used the unit with Hifiman HE1000 and Focal Clear
I am selling to upgrade to a Nimbus US4+ which is a considerable more expensive Headphone Amp. 
If you purchase at the buy it now price I will paid Paypal Fees and Shipping (only within the continental USA).
Please no low ball offers the price is very fair.  

Read the great reviews:  https://www.innerfidelity.com/content/neutral-reference-headphone-amp-simaudio-moon-neo-430ha https://headphone.guru/moon-neo-series-430-had-reference-headphone-amplifier-with-optional-dsd32-bit-pcm-dac/

Design features

• Inputs include 1 balanced on XLR’s, 2 single-ended on RCA’s and 1 single-ended on 1/8” jack located on the front panel.

• Outputs include a pair of 3-pin XLR and one 4-Pin XLR located on the front panel behind a sliding window, a ¼” TRS jack, as well as both fixed and variable single-ended line-level RCA stereo pairs.

• Four (4) stages of our own M-LoVo (MOON Low Voltage) DC regulation circuit to significantly lower the noise floor.

• M-eVOL2 volume control with 530 steps and channel matching of 0.1dB.

• Fully asynchronous DAC with four (4) digital inputs (S/PDIF x 2, TosLink x 1 & USB x 1) allowing for use with any virtual digital source; Supports DSD64, DSD128 and DSD256 (USB input only); Supports PCM up to 24-bit/192kHz (all inputs) and 32-bit/384kHz (USB input only).

• Output power per channel @ 600 / 300 / 50Ω 667mW / 1.33W / 8W
• Headphone Impedance 20 - 600Ω
• Frequency Response (audible) 20Hz - 20kHz ±0.1dB
• Frequency Response (full range) 5Hz - 100kHz +0/-3dB
• THD @ 1kHz, 0dBFS (A-weighted) 0.005%
• Intermodulation distortion 0.005%
• Signal-to-noise Ratio 120dB
• Crosstalk 110dB
• Input / Output impedance 22KΩ / 1.25Ω
• Shipping weight 22 lb / 9.5 kg
• Dimensions (width x height x depth) 16.9 x 3.5 x 13.8 in
• 42.9 x 8.9 x 35.1 cm