Polk Audio Atrium 4 Outdoor Speakers, Powerful Bass (Pair, Black) | Full-Range Audio, 4.5" Polymer Cone, All-Weather Durability - Marine & Pool Compatible, Easy Speed-Lock Mounting System
Show full titleShow less
Normal price
$238.51 is within 5% of the $235.99 it normally sells for.
- Now
- $238.51
- Normally
- $235.99
- Lowest in 142 days
- $156.75(Oct 6)
- Highest
- $249.00
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
Price history
Tracked since Jun 22 · 142 days · 166 price changes
Ahead of Black Friday 2026 (Nov 27), it is at its normal price of $235.99. A price below $235.99 would be a real deal. Polk Audio Atrium 4 Outdoor Speakers, Powerful Bass (Pair, Black) price history, checked Nov 11, 2026: current price $238.51, normal (typical) price $235.99, average $226.45 over 142 days, lowest $156.75 (Oct 6, 2026), highest $249.00 (Oct 31, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $235.99
- 5% or more below normal
How often does it drop below normal?
In the 142 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 6 times, typically lasting about 3 days. The last time ended Oct 23.
A count of what happened, not a prediction.
Other ways to buy
New from
$238.24
Amazon.comFulfilled by Amazon · Seller rating 100%
Used from
$171.26
Amazon ResaleFulfilled by Amazon
11 of 18 offers
| Seller | Condition | Price | FBA | Seller rating |
|---|---|---|---|---|
| Amazon Resale | Used - Acceptable | $171.26 | Yes | — |
| HAWTHORNE | Used - Like New | $199.00 | No | 89% of 2,844 |
| GLAM_AZON | Used - Like New | $199.77 | No | 98% of 1,665 |
| Amazon.com | New | $238.24 | Yes | 100% |
| Epignosis Goods | New | $238.24 | No | 60% of 10 |
| findschest | New | $238.27 | Yes | 100% of 93 |
| Crutchfield | New | $249.00 | No | 90% of 2,184 |
| Electronics Expo (Authorized Dealer) | New | $249.00 | Yes | 97% of 193,275 |
| ListenUp | New | $249.00 | No | 91% of 8,224 |
| Walts TV | New | $249.00 | No | 76% of 11,285 |
Showing the 10 lowest of 11 offers.
Amazon lists 18 offers. These are from the first page of its offer list, sorted by price plus delivery, so a lower price may be further down.
More real deals in Speakers
Great price: −45% vs normalPanasonic SoundSlayer Wearable Speaker System for Gaming, Movies and Music, Lightweight Neck Speaker with Built-in Microphone and Immersive, Dimensional Sound - SC-GNW30
Rated 3.2(27 ratings)Lowest in 44 days
$187.99
normally $344.99
Great price: −33% vs normalMonolith T4 Tower Speaker - Powerful Woofers, Punchy Bass, High Performance Audio, for Home Theater System - Audition Series
Rated 4.0(28 ratings)Lowest in 44 days
$149.99
normally $223.99
Great price: −28% vs normalJamo Studio Series S 81 Center Channel Speaker (Walnut) | WaveGuide technology, 1" tweeter, polyfiber woofers, slot port, surround sound, dialogue enhancement, home theater
Rated 4.5(126 ratings)Lowest in 44 days
$49.00
normally $69.00
Great price: −26% vs normalPeerless SF670P Universal Fixed Low-Profile Wall Mount for 46-Inch to 90-Inch Displays (Black/Non-Security)
Rated 4.6(11 ratings)Lowest in 44 days
$149.99
normally $205.00
Great price: −26% vs normalEaton Tripp Lite RS-0615-F Heavy Duty Metal 1U Rack Mount Power Strip | 6 Front-Facing Outlets, 15A Circuit Breaker On/Off Switch Cover, 15ft Extension Cord, Lifetime Manufacturer's Warranty
Rated 4.5(14 ratings)Lowest in 20 days
$69.58
normally $94.30
Great price: −25% vs normalWharfedale - Denton 85th Anniversary (Walnut)
Rated 5.0(21 ratings)Lowest in 44 days
$899.00
normally $1,199.00
Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B00378KMF0 \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B00378KMF0", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B00378KMF0",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B00378KMF0",
"title": "Polk Audio Atrium 4 Outdoor Speakers, Powerful Bass (Pair, Black) | Full-Range Audio, 4.5\" Polymer Cone, All-Weather Durability - Marine & Pool Compatible, Easy Speed-Lock Mounting System",
"image": "https://m.media-amazon.com/images/I/71KgV5mMghL._AC_SL500_.jpg",
"currency": "USD",
"category": "Speakers",
"category_label": "Speakers",
"in_stock": true,
"price": {
"current_cents": 23851,
"reference_cents": 23599,
"discount_pct": -1.07,
"is_deal": false,
"observed_at": 1794441336119,
"changed_at": 1794325629066,
"checked_at": 1794441336119,
"source": "stored"
},
"verdict": {
"label": "normal",
"text": "Normal price",
"pct_vs_normal": -1.07,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Normal price. $238.51 is within 5% of the $235.99 it normally sells for."
},
"listing_claim": null,
"stats": {
"min_cents": 15675,
"max_cents": 24900,
"avg_cents": 22645,
"history_days": 142,
"price_levels": 366,
"price_changes": 166,
"distinct_prices": 12,
"lowest_at": 1791273268418
},
"history": [
{
"price_cents": 24521,
"from": 1793425776912,
"to": 1793425776912
},
{
"price_cents": 24900,
"from": 1793426776921,
"to": 1793658049126
},
{
"price_cents": 23900,
"from": 1793664870003,
"to": 1794088044864
},
{
"price_cents": 24153,
"from": 1794090059078,
"to": 1794322453145
},
{
"price_cents": 23851,
"from": 1794325629066,
"to": 1794441336119
}
],
"last_seen": 1794441337523
}
// … 361 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.