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AMAZON
ZK-TB21 50W+50W+100W 2.1CH Bluetooth 5.0 Subwoofer Amplifier Board – Bass/Treble Control, AUX/USB Input, Overload Protection, Compact for Vehicle Amplifier
₹4,270
₹17,080
75% OFF
All-Time Low
12-Month Low
Updated 18th Jul 2026, 08:18 PM
Buy Now
Price Analysis & Buying Guide
98 / 100
Exceptional
Confidence: 63%
Avg Discount
28/28
Recent Discount
22/22
Historical Pos.
17.5/20
Low Proximity
20/20
Trend Bonus
10/10
Avg Price
₹6,146
6M Avg
₹5,858
All-Time Low
₹4,270
All-Time High
₹8,115
vs MRP
↓75%
Price Benchmarks
Lowest Ever
₹4,270
18th Jul 2026
Highest Ever
₹8,115
2nd Apr 2026
Average Price
₹5,965
16 data points
3-Month Low
₹4,270
18th Jul 2026
6-Month Low
₹4,270
18th Jul 2026
12-Month Low
₹4,270
18th Jul 2026
As per price history, ZK-TB21 50W+50W+100W 2.1CH Bluetooth 5.0 Subwoofer Amplifier Board – Bass/Treble Control, AUX/USB Input, Overload Protection, Compact for Vehicle Amplifier's lowest price is ₹4,270. The average price is ₹6,146. Highest ever price is ₹8,115. Along with deals, coupons & discounts, you can get it at ₹4,270. Read our Pricing Disclosure
Product Details
| Product Code | B0F7RSSMCR |
|---|---|
| Market Place | amazon.in |
| Store | Amazon |
| Rating | 4.8 (7 ratings) |
| Category | Amplifiers |
| Manufacturer | Wuzhi Audio |
| Model Number | Wuzhi Audio ZK-TB21 |
| Country of Origin | USA |
Frequently Asked Questions
What is the lowest price ever for ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier?
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The all-time lowest price for ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier was ₹4,270 recorded on 18th Jul 2026. The current price matches or is below the all-time low!
What was the highest price for this product?
▶
The highest recorded price for ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier was ₹8,115 on 2nd Apr 2026. Right now you save 47.4% compared to the peak price.
What is the average selling price?
▶
Based on 16 data points, the average price of ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier is ₹5,965. The current price is 28.4% below average — a good indicator for buying.
What is the 3-month lowest price?
▶
In the last 3 months, the lowest price was ₹4,270 on 18th Jul 2026.
What is the 6-month lowest price?
▶
The 6-month lowest price for ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier was ₹4,270 on 18th Jul 2026.
Is the price going up or down?
▶
The current price trend for ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier is Falling. Prices have been decreasing recently, which means you may get an even better deal soon, or the current price could already be a good opportunity. It has been 0 days since the last recorded low price.
Is this the cheapest it has ever been?
▶
Yes! According to our price tracking data, the current price of ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier matches or is at its all-time lowest price. This is a rare opportunity — we strongly recommend buying now if you've been considering this product.
How does the current price compare to the average?
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The current price is 30.5% below the average price. This is a significant discount compared to what this product usually sells for. A great time to consider purchasing.
How much discount is available from MRP?
▶
You're currently saving 75% off the MRP (Maximum Retail Price). That's a massive discount! This is well below the listed retail price.
Should I buy this product now?
▶
Great time to buy! This product scores 98/100 (Grade S) — priced well below its historical average. Our algorithm considers average discount, recent price movement, historical position, proximity to all-time low, and price trend to arrive at this score. Price trend is currently falling. Currently 30.5% below average price.
What does the Deal Score mean?
▶
The Deal Score is a composite rating from 0 to 100 calculated by our algorithm. It considers five factors: Average Discount (how far below the long-term average), Recent Discount (short-term price performance), Historical Position (where the price sits in its all-time range), Low Proximity (closeness to the all-time low), and Trend Bonus (whether prices are falling). Grades are: S (90-100, Exceptional), A (75-89, Great), B (60-74, Good), C (45-59, Fair), D (30-44, Below Average), F (0-29, Not a Deal). This product currently has a score of 98 with 63% confidence.
Where can I buy this product?
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ZK-TB21 50W50W100W 21CH Bluetooth 50 Subwoofer Amplifier Board BassTreble Control AUXUSB Input Overload Protection Compact for Vehicle Amplifier is available on Amazon (amazon.in). Click the Buy Now button above to visit the product page directly. We recommend checking for available coupons and bank offers on the store page for additional savings.