TDA7293 Audio Power Amplifier Board HiFi Mono 100W
Pickup currently not available
Shipping
We are an online wholesale platform and shipping costs are charged separately for greater benefit to you.
Air freight costs are based on the weight of the product (including packaging bags and cushioning materials). For products under 2kg, freight is calculated in 50g increments. For products between 2kg and 4kg, freight is calculated in 100g increments. For products over 4kg, freight is calculated in 1kg increments.
If your order exceeds 4kg or the shipping cost exceeds $70, we recommend contacting our customer service for an accurate shipping quote. You will need to provide your zip code address when you contact us.
Air freight options include DHL, UPS, FedEx, and Yun Express, with a delivery time of 7-12 days.
When the weight of the express delivery exceeds 12kg or air shipping cost exceeds US$100 or sea shipping cost exceeds US$50, you can choose B2B shipping:
Air freight(10-14 days)
Yun quik boat sea freight (15-20 days)
Quik boat sea freight(20-25 days).
Air freight B2B express |
|||
| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$7.5/kg + US$2 | 10-15 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$8.5/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$9.0/kg + US$2 | ||
Yun quit boat sea freight B2B express |
|||
| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$3.4/kg + US$2 | 15-20 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$3.6/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$3.8/kg + US$2 | ||
Quit boat sea freight B2B express |
|||
| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$2.6/kg + US$2 | 20-25 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$2.8/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$3.0/kg + US$2 | ||
Processing starts after your payment confirmed. Normally, it needs 2-5 days. The processing time depends on the quantity of items.
Precautions
A heatsink is absolutely necessary!! Otherwise, it will overheat severely, causing burnout or even a complete breakdown!
A 3-wire transformer is required; dual 12-32V is acceptable. You must attach the heatsink yourself!!!
DC power and batteries are not acceptable!! Connecting them will cause a breakdown!!! Dual batteries are also not acceptable; they will burn out upon power-up!!!
1. This circuit is an official standard circuit, stable and reliable.
2. The filter uses a 50V, 2200uf electrolytic capacitor.
3. Power supply voltage: Dual 12-36V toroidal transformers are required; dual 32V toroidal transformers are recommended.
4. Output power: 85W*1 undistorted rated power, peak power 100W.
5. Can easily drive speakers over 100W; speaker impedance: 4-8 ohms.
6. PCB size: 60*46mm
The TDA7293 has a three-stage internal structure: the differential input stage uses bipolar transistors (BPTs), while the driver and power output stages employ field-effect transistors (FETs).
This structure combines the low noise of BPTs with the linearity, temperature coefficient, and tonal advantages of FETs. It delivers a beautiful tone, integrating the advantages of bipolar signal processing circuitry and MOSFETs, and features low power loss, low noise, high voltage withstand capability, quiet power-on/off operation, overheat protection, and short-circuit protection.