Nordost QRT Plug-in AC Line Harmonizers and Enhancers (available to demo) QSINE - AC Enhancer - Active price tracker
Best verified price
Exactly at the recorded typical price of $325.
This is the lowest price UponSale has ever recorded for this product.
1 store compared · 2 fresh offers · last market update 12h ago
We score a price only against history we recorded ourselves. Until then this product shows its market range instead of a number we would be inventing.
You will be taken to audiovisionsf.com. UponSale does not process payments and does not sell this product.
Market summary
UponSale currently tracks this product at 1 store. The lowest verified price among 2 fresh offers is $325. That matches its recorded median of $325. The next-cheapest fresh offer is $450, $125 more.
What our data shows
- This is the lowest price UponSale has recorded for this product.
- The current best offer is $125 below the next-cheapest fresh offer.
Current prices for Nordost QRT Plug-in AC Line Harmonizers and Enhancers (available to demo) QSINE - AC Enhancer - Active
1 store tracked| Store | Match | Item price | Shipping | Total | Stock | Freshness | Action |
|---|---|---|---|---|---|---|---|
| AudioVision San FranciscoBest verified audiovisionsf.com +1 other listing at this store | New | $325 | unknown | $325 + ship | In stock | Checked 12h ago | View offer |
Ranked by the lowest comparable price among offers that pass our freshness, variant and anomaly checks. Where a store does not publish a shipping cost we say so rather than assuming it is free. All amounts are the store’s own published prices at the time shown.
Nordost QRT Plug-in AC Line Harmonizers and Enhancers (available to demo) QSINE - AC Enhancer - Active price history
Recorded by UponSalePrice history is just getting started
We began tracking this product recently. Current prices are already available above; the chart becomes useful as new observations arrive — we record one series point per day per store.
Over the 2 days UponSale has been recording this product, prices for Nordost QRT Plug-in AC Line Harmonizers and Enhancers (available to demo) QSINE - AC Enhancer - Active ran from $325 to $325. The current lowest verified price is $325 and the recorded median is $325.
Is Nordost QRT Plug-in AC Line Harmonizers and Enhancers (available to demo) QSINE - AC Enhancer - Active a good deal today?
Buy now or wait?
shop aroundBuy from the right store
The same product is listed at 2 stores we track today, and the cheapest is 27.8% below the dearest. Whether to buy now or wait needs price history, which we are still recording.
This is a description of what we observed, not a prediction. We do not forecast future prices.
Market price snapshot
How this price compares
Power Conditioner →Only one store we track sells this, so there is no second price to compare it against. What we can compare it to is the category: among the 49 power conditioner products we currently hold a price for, this one is dearer than 4 and cheaper than 44.
Category figures are computed from the prices we currently hold across every store we track, not from a manufacturer’s list. They move as the catalogue does.
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How UponSale tracks this product
Stores compared
Data provenance
- Stores
- 1 tracked
- Fresh offers
- 2
- Observations
- 2 days recorded
- Last update
- 12h ago
- First tracked
- August 27, 2026
- Lowest ever seen
- $325
Every price above was read from a retailer’s own published data and stored with its timestamp. The history is ours, not a retailer’s claim.
How we calculate this
Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.
What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.
How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.
What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.
Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.