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Linear Audio Autoranger - Populated Boards / Tested / Not Calibrated

Member
Joined 2019
Paid Member
SOLD

I have a spare set of fully populated and verified working Autoranger boards; the control board and the attenuation board. The firmware version is V1.5. These are the original boards / design.

Price / Payment / Shipping - $100 USD PayPal net to me. If I arrange shipping, buyer covers shipping at cost using UPS or USPS. Buyer can also PM me a pre-paid shipping label for USPS, FedEx, or UPS. I will provide shipping weight and dimensions along with other necessary details.

https://www.linearaudio.net/la-autoranger

The boards are tested and work properly. The system is not calibrated. You will need to do that if you choose. Per the manuals, it is functional 'out of the box', and I've found it to be so. The displayed voltage is slightly off (expected). I think most people would likely do the simple Accuracy calibration and CMRR checks and leave the FR alone.

Why did I not calibrate it? It's not necessary (to me). The voltages are close enough, and who knows... my hand-held DMM may be less accurate than the Autoranger. 🤷‍♂️

Will I calibrate it for you? I'll do the accuracy calibration and CMRR check for an additional $50. Why so much? B/C I don't want to take apart my other unit, and it takes time I don't really have.

Why am I selling these after so recently getting them and at less than the cost of the parts...? tl;dr - I wound up building two sets, and this community has been exceptionally kind, particularly Jan.

What else is needed to have a fully working Autoranger? A PSU, a chassis, and appropriate wiring.

PS - The display color is set to purple... b/c I like purple. Feel free to change it with the jumpers.
 

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