Microphone · Unidyne · price guide
Unidyne 545SD value
An Unidyne 545SD microphone sells for about $125 on eBay, from 25 sales between Jul 23, 2026 and Oct 13, 2026. Most sell for $99.99 to $175.
See the numbers
| Month | Sales | Middle price |
|---|---|---|
| Jul 2026 | 2 | $180 |
| Aug 2026 | 6 | $115 |
| Sep 2026 | 12 | $120 |
| Oct 2026 | 5 | $125 |
The flip math
What one Unidyne 545SD is worth to a reseller, line by line.
To keep at least 2 times what you pay, bid no more than $26.36. Above $54.28 you lose money after every fee. Run your own numbers.
Local auction prices
1 more is up for bid right now.
One is up for bid right now
Members see every open lot priced, with the max bid to stop at.
See it pricedSelling notes
- 20% of sales shipped free; the rest charged a middle $11.08 for shipping.
- 40% sold through Best Offer, where the real price can be lower than shown.
- The last 60 days are down 6% against the 4 months before.
- 4 sold in the last 30 days, 23 in the last 90.
Questions
How much is a used Unidyne 545SD microphone worth?
About $120 on eBay, the middle of 24 used sales between Jul 23, 2026 and Oct 13, 2026. Most used ones sell for $99.99 to $175 once new ones are counted too.
How fast does an Unidyne 545SD sell?
4 sold on eBay in the last 30 days and 23 in the last 90. Prices are down 6% against the months before. 20% of sales came with free shipping.
Is an Unidyne 545SD worth flipping?
Sold at $99.99 on eBay you keep about $71.81 after fees, shipping and a returns buffer. To double your money, pay no more than $26.36 as a winning bid with an 18% premium and 9% tax.
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What electronics from liquidation auctions resell for
Have one? Look it up
Snap a photo or scan the barcode and see what yours sells for, new and used, with every fee counted.
Look up yoursHow we got these numbers
- 25 eBay sales of the Unidyne 545SD from Jul 23, 2026 to Oct 13, 2026, each one checked to be this model (at least half name it in the listing; the rest match it closely).
- eBay prices are completed sales (what buyers paid), not asking prices, from our sold-data provider. We keep only sales of the same product: parts, accessories, bundles and look-alikes are dropped before anything is counted.
- Local auction prices are winning bids on single-item lots at the Kansas and Missouri online auctions we track (HiBid and Equip-Bid sellers), read by our own lot reader. Lots of several units are left out.
- The money math uses our standard costs: 18% buyer's premium, 9% sales tax, a $2.00 lot fee, eBay's 13.6% + $0.40 fee, shipping at cost (never counted as profit) and a 15% buffer for returns and duds. Members set their own.