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About shipping
1.Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).
2. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
3. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
4.Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound. The shipping rate can be showed at the Checkout page. There are two options for shippig as below.
A. Standard Shipping(≤2KG): The Post Registered Air Mail, USPS/ePacket, PostNL, Singapore Post, or DHL Global Mail
B. Express Shipping: EMS, DHL, UPS , or Fedex, Special Route.,etc. For faster shipping and smooth transaction, we will change the shipping company among them
C. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, or shipment by sea etc
RETURNS POLICY
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
SELLER GUARANTEES
1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.
SHIPPING RATE
How to check the latest shipping cost, please follow steps below.
1. Click the ADD TO CART button;
2. Click the GO TO CART button;
3. Input your Country, State or Province, Postal/Zip Code;
4. Finally, click the CALCULATE SHIPPING
Standard Shipping(≤2KG) ---Through Post Registered Air Mail, ePacket or DHL Global Mail,.etc.
| Weight(KG) | Shipping Code | Shipping Cost(USD) |
| 0.1~0.2 |
Standard Shipping The Post 0.2
|
3 |
| 0.21~0.3 |
Standard Shipping The Post 0.3
|
4 |
| 0.31~0.4 | Standard Shipping The Post 0.4 | 5 |
| 0.41~0.5 | Standard Shipping The Post 0.5 | 7 |
| 0.51~0.6 | Standard Shipping The Post 0.6 | 8 |
| 0.61~0.7 | Standard Shipping The Post 0.7 | 11 |
| 0.71~0.8 | Standard Shipping The Post 0.8 | 13 |
| 0.81~0.9 | Standard Shipping The Post 0.9 | 15 |
| 0.91~1.0 | Standard Shipping The Post 1.0 | 17 |
| 1.01~1.0 | Standard Shipping The Post 1.1 | 19 |
| 1.11~1.2 | Standard Shipping The Post 1.2 | 20 |
| 1.21~1.3 | Standard Shipping The Post 1.3 | 21 |
| 1.31~1.4 | Standard Shipping The Post 1.4 | 22 |
| 1.41~1.5 | Standard Shipping The Post 1.5 | 23 |
| 1.51~1.6 | Standard Shipping The Post 1.6 | 24 |
| 1.61~1.7 | Standard Shipping The Post 1.7 | 25 |
| 1.71~1.8 | Standard Shipping The Post 1.8 | 26 |
| 1.81~1.9 | Standard Shipping The Post 1.9 | 27 |
| 1.91~2.0 | Standard Shipping The Post 0.8 | 28 |
Express Shipping ---Through Special Routes, EMS, DHL, UPS ,Fedex, or TNT. For faster shipping and smooth transaction, we will change the shipping company among them
| Weight(KG) | Shipping Code | Shipping Cost(USD) |
| 0~0.5 |
Express Shipping L0.5
|
17 |
| 0.51~1 |
Express Shipping L1.0
|
20 |
| 1.01~1.5 | Express Shipping L1.5 | 25 |
| 1.51~2 | Express Shipping L2.0 | 30 |
| 2.01~2.5 | Express Shipping L2.5 | 35 |
| 2.51~3 | Express Shipping L3.0 | 38 |
| 3.01~3.5 | Express Shipping L3.5 | 40 |
| 3.51~4 | Express Shipping L4.0 | 42 |
| 4.01~4.5 | ExpressShipping L4.5 | 44 |
| 4.51~5 | Express Shipping L5.0 | 47 |
| 5.01~5.5 | Express Shipping L5.5 | 59 |
| 5.51~6 | Express Shipping L6.0 | 62 |
| 6.01~6.5 | Express Shipping L6.5 | 65 |
| 6.51~7 | Express Shipping L7.0 | 68 |
| 7.01~7.5 | Express Shipping L7.5 | 71 |
| 7.51~8 | Express Shipping L8.0 | 74 |
| 8.01~8.5 | Express Shipping L8.5 | 77 |
| 8.51~9 | Express Shipping L9.0 | 80 |
| 9.01~9.5 | Express Shipping L9.5 | 82 |
| 9.51~10 | Express Shipping L10.0 | 86 |
| 10.01~10.5 | Express Shipping L10.5 | 103 |
| 10.51~11 | Express Shipping L11.0 | 107 |
| 11.01~11.5 | Express Shipping L11.5 | 110 |
| 11.51~12 | Express Shipping L12.0 | 114 |
| 12.01~12.5 | Express Shipping L12.5 | 118 |
| 12.51~13 | Express Shipping L13.0 | 122 |
| 13.01~13.5 | Express Shipping L13.5 | 126 |
| 13.51~14 | Express Shipping L14.0 | 130 |
| 14.01~14.5 | Express Shipping L14.5 | 134 |
| 14.51~15 | Express Shipping L15.0 | 137 |
| 15.01~15.5 | Express Shipping L15.5 | 140 |
| 15.51~16 | Express Shipping L16.0 | 143 |
| 16.01~16.5 | Express Shipping L16.5 | 146 |
| 16.51~17 | Express Shipping L17.0 | 149 |
| 17.01~17.50 | Express Shipping L17.5 | 152 |
| 17.51~18 | Express Shipping L18.0 | 155 |
| 18.01~18.50 | Express Shipping L18.5 | 158 |
| 18.51~19 | Express Shipping L19.0 | 161 |
| 19.01~19.5 | Express Shipping L19.5 | 164 |
| 19.51~20 | Express Shipping L20.0 | 167 |
| 20.01~20.5 | Express Shipping L20.5 | 170 |
| 20.51~21 | Express Shipping L21.0 | 173 |
| 21.01~21.5 | Express Shipping L21.5 | 176 |
| 21.51~22 | Express Shipping L22.0 | 179 |
| 22.01~22.5 | Express Shipping L22.5 | 182 |
| 22.51~23 | Express Shipping L23.0 | 185 |
| 23.01~23.5 | Express Shipping L23.5 | 189 |
| 23.51~24 | Express Shipping L24.0 | 192 |
| 24.01~24.50 | Express Shipping L24.5 | 195 |
| 24.51~25 | Express Shipping L25.0 | 198 |
Note:
1.This table of shipping rate will be added to the checkout. The shipping rate can be showed at the Checkout page. And, the table is for reference only. Final shipping rate is subject to actual checkout.
2.The shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
3.If you have any questions about the shipping rate, pleas don't be hesitate to contact us through the ways as below.
Email: sales@iwistao.com
Description
IWISTAO 200W HiFi Linear Regulated DC Power Supply with Toroidal Transformer – Dual DC Outputs
Model No: WHFLPS-DC200W
This 200W HiFi Linear Regulated DC Power Supply is designed to provide clean, stable, and low-noise DC power for high-fidelity audio equipment and other sensitive electronic devices, like as Digital Player, NAS,etc
Unlike conventional switching power supplies, this linear power supply features a 200W toroidal transformer, a precision voltage regulation circuit, and multiple stages of capacitor filtering to help minimize electrical noise and output ripple.
The power supply incorporates an LM317 voltage regulator with a TL431 precision voltage reference, supported by high-current Toshiba 2SA1943 power transistors for increased current capability and thermal stability.
Housed in a solid CNC-machined aluminum alloy enclosure, the unit combines reliable power delivery with an elegant appearance suitable for HiFi audio systems.
Key Features
1. 200W Toroidal Transformer
-
Built-in 200W toroidal power transformer
-
Designed to provide a stable power source for the linear regulation circuit
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Suitable for audio equipment requiring a low-noise DC supply
2. Precision Linear Voltage Regulation
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LM317-based linear voltage regulation
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TL431 precision voltage reference
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Toshiba 2SA1943 power transistors for current amplification
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Designed for stable output voltage, low ripple, and reduced electrical noise
-
Improved regulation performance compared with basic unregulated transformer power supplies
3. Multiple-Stage Noise Filtering
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Multiple large-capacity electrolytic filter capacitors
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Additional film capacitors for high-frequency filtering
-
LC output filtering stage for further high-frequency noise suppression
-
Designed to deliver clean DC power to sensitive audio circuits
4. Dual DC Output Connectors
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Two DC output connectors connected in parallel
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Allows two compatible devices to be powered simultaneously
-
Both outputs share the same regulated voltage
-
Total output current must remain within the power supply's rated capacity
5. Heavy-Duty CNC Aluminum Enclosure
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Solid aluminum alloy chassis
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Brushed aluminum front panel
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Integrated ventilation openings
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Front-panel power switch
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Digital voltage display
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Rear-panel AC power input and dual DC output connectors
6. Customizable Output Voltage
Output voltages may be available upon request, including: 5V / 7V / 9V / 12V / 15V / 24V DC
Please specify the required voltage when ordering. Custom voltages and higher-current configurations are subject to confirmation., send us it at sales@iwistao.com
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Linear Regulated DC Power Supply |
| Transformer | 200W Toroidal Transformer |
| Regulation Circuit | LM317 + TL431 |
| Power Transistors | Toshiba 2SA1943 |
| Input Voltage | AC110V / 220V |
| Output Voltages | 5V, 7V, 9V, 12V, 15V, 24V DC |
| Output Current | Approximately 4–5A under the stated operating configuration |
| Maximum Current | Up to 8A for supported customized configurations |
| DC Outputs | 2 × Parallel DC Output Connectors |
| Output Filtering | Multiple Capacitor Stages + LC Filter |
| Enclosure | Aluminum Alloy |
| Front Panel | Power Switch + Digital Display |
| Approximate Weight | 3 kg |
| Standard DC Connector | GX16 Aviation Connector |
| Optional DC Plugs | 5.5 × 2.1mm / 5.5 × 2.5mm ( polarity: inner +, outer -) |
Note: The 200W rating refers to the transformer, not a guaranteed continuous DC output rating. Actual output capability depends on the selected voltage, current, and thermal operating conditions.
Applications
Suitable for compatible equipment such as:
-
HiFi DACs and digital audio processors
-
Audio preamplifiers
-
Headphone amplifiers
-
Audio interface and signal-processing equipment
-
Low-voltage audio accessories
-
DIY HiFi audio projects
-
Other electronic devices requiring regulated DC power
Always verify voltage, current, connector polarity, and compatibility before connecting your equipment.
Package Includes
-
1 × 200W Linear Regulated DC Power Supply
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1 × AC Power Cord
-
1 × DC Output Cable
DC Connector output Options:
-
5521: 5.5mm outer diameter × 2.1mm inner diameter
-
5525: 5.5mm outer diameter × 2.5mm inner diameter
.
Important Notes
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The two DC outputs are connected in parallel and provide the same voltage. They are not independently regulated.
-
The maximum combined output current depends on the specific configuration.
-
As a high-current linear power supply, the enclosure may become warm during operation, especially under heavy loads. Ensure adequate ventilation.
-
This is a linear regulated power supply, not a switching power supply.
-
Custom output connectors may be available upon request.
Why Choose a Linear Power Supply?
Linear regulated power supplies are widely used in HiFi audio applications because they can provide stable DC voltage without the high-frequency switching operation found in conventional switching power supplies.
By combining a toroidal transformer, precision voltage regulation, and multistage filtering, this unit is designed to reduce power-supply-related electrical interference and provide a reliable power source for compatible audio equipment.
For demanding HiFi and DIY audio applications, a properly matched linear power supply can be a practical upgrade over a basic DC adapter.