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Lot # 78 - KOSS Model MS503 Car Stereo Compact Disc Player – Sealed New Old Stock
| Opening Bid : | $ 5.00 |
| Start Date/Time: | 05-May-2026 7:00:00 AM |
| End Date/Time: | 12-May-2026 8:17:00 PM |
| Current bid: |
$5.00 |
| Highest bidder: | Dem0s |
Auction has ended |
|
Description :
Factory‑sealed KOSS MS503 in‑dash car stereo compact disc player with digital AM/FM tuner, preserved in its original early‑2000s retail packaging. This model represents KOSS’s mobile‑audio line from the period, featuring bilingual English/French printing consistent with its distribution at the time. The MS503 delivers a 40‑watt system output (10 watts x 4 channels) and supports standard front‑loading CD playback along with AM/FM radio operation. Period documentation for this model includes the following technical specifications: 12V DC negative‑ground power supply 20 AM/FM station presets Seek/manual tuning and band selection Tone controls: ±10 dB bass at 100 Hz; ±10 dB treble at 10 kHz Front‑loading CD mechanism with standard playback functions Balance and fader controls The box remains fully sealed, with panels showing product features, branding, and system details. Packaging exhibits expected age‑related storage wear but remains intact and unopened, making this a strong example of true New Old Stock car audio from the early 2000s. Ideal for collectors of KOSS brand history, retro automotive electronics, or those curating period‑correct installations with original sealed packaging.
Dimensions : 11 in L x 9 in W x 4 in H
Auction History
Highest bidder is Dem0s
| Date | Bid | User |
|---|---|---|
| 08-May-2026 6:37:57 PM | $5.00 | Dem0s |
PAYMENT DETAILS
Placing a bid is an agreement to purchase. If you win, you must pick up your item(s). If you default on your purchase, your bidding privileges will be revoked permanently. Do not bid if you do not plan to purchase.If you bid, you MUST be available/arrange for pick-up of purchases on the pick-up date unless you have made prior shipping arrangements. Bring necessary tools and help for picking up large items. Loading assistance is NOT available. Some items may be located on a 2nd floor, out building.
Invoices are emailed to winning bidders once the sale has completely closed.Full payment must be made by 8:00 p.m. the day after auction closes. If total payment is not received before the pick-up date & time, items will be forfeited, and bidding privileges revoked.
Pick-up information will be on the invoice e-mailed after the auction closes.All items not picked up during the designated times will be considered abandoned and may be donated or resold. When possible, and at our sole discretion, an alternate pick-up time may be arranged. If this is possible, an appropriate fee will be charged.
A 10% Buyer's Premium and Sales Tax are added to the winning bid amount when invoiced. Sales tax is waived for licensed re-sellers.
We make every effort to describe lot items as accurately as possible. Expect normal signs of wear associated with antiques, vintage, and used items. We do not list every flaw. All items are sold AS IS WHERE IS. No refunds or returns. Sound Estate Company does not guarantee the working order of any clock, watch, electronic or mechanical device. Dimensions given may be approximate.
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