Apos Certified Audio Gear: What to Check Before Buying Refurbished Headphones and DACs

Quick answer

Apos Certified gear can be a smart way to save on quality audio, but only if you check the product’s condition, warranty, and return policy. Look for certifications and clear product facts, and understand what 'open box' means before you buy.

Apos Certified open box and refurbished audio gear can be tempting—sometimes the price is half of the original. But is it worth the risk? The answer depends on what you check before clicking buy.

In this guide, we break down common myths about certified refurbished headphones and DACs, and give you a practical checklist to follow.

Myth: Open box always means good as new

Open box items are often customer returns or display units. They might have minor cosmetic scratches or missing accessories, but they usually work perfectly. However, 'open box' doesn't guarantee a flawless unit—some may have been used for weeks before being returned.

Apos Certified items, on the other hand, undergo a specific certification process. Always look for what the certification actually covers, not just the label.

When buying open box, ask about the condition, what's included, and the return period. If the listing doesn't state these clearly, contact the seller first.

• Check if the warranty is the same as new
• Ask about any physical blemishes or missing parts

Myth: Refurbished means lowered quality

Refurbished gear should meet the original performance standards, but the key is what was refurbished. For example, the iFi ZEN DAC Signature V2 has a 16-core XMOS chip. If that chip was replaced, you'd want to know it's a genuine part.

Refurbished headphones might have new ear pads or cables, but the drivers and housing should be original. A good refurbisher will test all functions and replace worn parts.

Don't assume all refurbished gear is the same. Compare the specs and warranty across different certified products.

• Look for a detailed description of what was tested or replaced
• Verify the warranty covers both parts and labor

Myth: DACs are simple, so any open box deal is safe

DACs have electronic components that can be damaged by power surges or improper handling, even if they look fine. For example, the xDuoo XP-2 Pro has a better sampling rate and output power than its predecessor. You'd want to ensure those specs are fully functional.

Check the inputs—USB, optical, Bluetooth—and test the headphone amp if possible. A refurbished DAC should have its firmware updated and all ports working.

If the price is significantly lower than new, ask why. It could be a discontinued model or a cosmetic blemish, but it could also be a more serious issue.

• Test all inputs and outputs before buying, if possible
• Ask if the firmware has been updated

Verdicts: what to check before you buy

• Check the warranty: Understand whether the Apos Certified warranty covers the same duration and scope as a new product. Ask what happens if the unit fails after a few months. A longer warranty often signals confidence in the refurbishing process.
• Inspect the condition: Ask for photos or a detailed condition report. Look for scratches, dents, or signs of heavy use. For headphones, check the ear pads and cables for wear. Cosmetic blemishes might be fine, but cracked housings or frayed cables are red flags.
• Confirm what’s included: Open box items might lack the original packaging or accessories like cables and manuals. Make sure you're okay with any missing pieces. Missing cables can add extra cost, reducing the value of the deal.
• Test all functions: If possible, test the product before purchase or during the return period. For DACs, test every input and output. For headphones, listen for any distortion or imbalance. A functional test is the best proof that the certified refurbishment is solid.
• Know the return policy: Understand the return window and any restocking fees. This protects you if the product doesn't meet expectations. A flexible return policy is a sign that the seller is confident in the product.

Certified products that show the value of checking

• iFi ZEN DAC Signature V2: Unlike the original, it has a 16 core XMOS chip instead of 8. This new and improved digital engine is more powerful than ever. iFi has also upgraded the clock circuitry to enhance the purist, audiophile design even further. This shows that even inside a DAC, the internal components affect performance. When buying a refurbished unit, confirm the chip and clock circuitry are confirmed working, not just the outer case.
• xDuoo XP-2 Pro Bluetooth DAC/Amp: The XP-2 Pro has more output power, a better sampling rate, and longer battery life than its forerunner, making it fit for the big leagues. These are measurable specs. A certified refurbished unit should still meet them—ask if the battery has been replaced or if the unit has been tested for output power.

Apos Certified audio gear can be an excellent value if you do your due diligence. Verify the warranty, inspect the condition, and test the functionality. That way, you can enjoy high-quality sound without the full price tag.