Policies
Testing & quality assurance
Every used unit goes through several inspection stages before packing. Anything that fails is repaired and retested, sold with a disclosed lower grade, or left out of the catalogue.
Last reviewed
Draft for review: this page describes our standard practice and is not yet a contractual commitment. Terms are confirmed in the quotation and sales contract.
Inspection at several stages
- Receiving check when the unit reaches our Guangzhou workshop: cosmetic grade, completeness, and signs of previous repair or water damage.
- Functional bench test by category: every channel, input and output is tested individually, not sampled.
- Service and re-test: after cleaning, fan and filter service, firmware reset and reassembly, the unit goes back on the bench.
- Pre-packing check against the listing photos and accessories; the serial number is recorded on the packing list.
What we document for you
- Impedance or DC offset readings, loaded run results, firmware version, cosmetic grade and every known fault.
- Test records and photos are available before you pay the balance. Ask for a video call during the test if you want to see the unit working.
- A unit that fails a stage is repaired and retested, offered with a disclosed lower grade, or not listed at all.
If something is wrong on arrival
- Check the unit within 7 days of delivery, and report visible transit damage to the carrier before signing the receipt.
- Send the serial number, photos and a short video showing the fault and the test setup to [email protected]; after review we will repair, replace or credit the item.
- No long-term warranty is offered. Used equipment is sold as tested and described, is maintained by your own technicians, and consumables or age-related wear are not covered.
Used pro audio · Export since 2016
Send us your next equipment list.
Tell us the models, quantities and destination port. We will reply with condition, photos, test notes and a landed-cost estimate.