Product details
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
最新の送料の確認方法
1. [カートに入れる] ボタンをクリックします。
2. [カートに入れる] ボタンをクリックします。
3. 国、都道府県、郵便番号を入力します。
4. 最後に、 CALCULATE SHIPPINGをクリックします。
標準配送(≤2KG) 書留航空便、ePacket、または DHL Global Mail による
| 重量(キロ) | 配送コード | 送料(米ドル) |
| 0.1~0.2 | 標準配送 The Post 0.2 |
3 |
| 0.21~0.3 | 標準配送 The Post 0.3 |
4 |
| 0.31~0.4 | 標準配送 The Post 0.4 | 5 |
| 0.41~0.5 | 通常配送 ザ・ポスト 0.5 | 7 |
| 0.51~0.6 | 標準配送 The Post 0.6 | 8 |
| 0.61~0.7 | 標準配送 The Post 0.7 | 11 |
| 0.71~0.8 | 標準配送 The Post 0.8 | 13 |
| 0.81~0.9 | 標準配送 The Post 0.9 | 15 |
| 0.91~1.0 | 標準配送 The Post 1.0 | 17 |
| 1.01~1.0 | 標準配送 The Post 1.1 | 19 |
| 1.11~1.2 | 標準配送 The Post 1.2 | 20 |
| 1.21~1.3 | 標準配送 The Post 1.3 | 21 |
| 1.31~1.4 | 標準配送 The Post 1.4 | 22 |
| 1.41~1.5 | 標準配送 The Post 1.5 | 23 |
| 1.51~1.6 | 標準配送 The Post 1.6 | 24 |
| 1.61~1.7 | 標準配送 The Post 1.7 | 25 |
| 1.71~1.8 | 標準配送 The Post 1.8 | 26 |
| 1.81~1.9 | 標準配送 The Post 1.9 | 27 |
| 1.91~2.0 | 標準配送 The Post 0.8 | 28 |
速達便 --- 特別ルート、 EMS、DHL、UPS、Fedex、または TNT を使用。より迅速な発送とスムーズな取引のために、私たちはその中で運送会社を変更します
| 重量(キロ) | 配送コード | 送料(米ドル) |
| 0~0.5 | エクスプレス配送 L0.5 |
17 |
| 0.51~1 | エクスプレス配送 L1.0 |
20 |
| 1.01~1.5 | エクスプレス配送 L1.5 | 25 |
| 1.51~2 | エクスプレス配送 L2.0 | 30 |
| 2.01~2.5 | エクスプレス配送 L2.5 | 35 |
| 2.51~3 | エクスプレス配送 L3.0 | 38 |
| 3.01~3.5 | エクスプレス配送 L3.5 | 40 |
| 3.51~4 | エクスプレス配送 L4.0 | 42 |
| 4.01~4.5 | エクスプレスシッピング L4.5 | 44 |
| 4.51~5 | エクスプレス配送 L5.0 | 47 |
| 5.01~5.5 | エクスプレス配送 L5.5 | 59 |
| 5.51~6 | エクスプレス配送 L6.0 | 62 |
| 6.01~6.5 | エクスプレス配送 L6.5 | 65 |
| 6.51~7 | エクスプレス配送 L7.0 | 68 |
| 7.01~7.5 | エクスプレス配送 L7.5 | 71 |
| 7.51~8 | エクスプレス配送 L8.0 | 74 |
| 8.01~8.5 | エクスプレス配送 L8.5 | 77 |
| 8.51~9 | エクスプレス配送 L9.0 | 80 |
| 9.01~9.5 | エクスプレス配送 L9.5 | 82 |
| 9.51~10 | エクスプレス配送 L10.0 | 86 |
| 10.01~10.5 | エクスプレス配送 L10.5 | 103 |
| 10.51~11 | エクスプレス配送 L11.0 | 107 |
| 11.01~11.5 | エクスプレス配送 L11.5 | 110 |
| 11.51~12 | エクスプレス配送 L12.0 | 114 |
| 12.01~12.5 | エクスプレス配送 L12.5 | 118 |
| 12.51~13 | エクスプレス配送 L13.0 | 122 |
| 13.01~13.5 | エクスプレス配送 L13.5 | 126 |
| 13.51~14 | エクスプレス配送 L14.0 | 130 |
| 14.01~14.5 | エクスプレス配送 L14.5 | 134 |
| 14.51~15 | エクスプレス配送 L15.0 | 137 |
| 15.01~15.5 | エクスプレス配送 L15.5 | 140 |
| 15.51~16 | エクスプレス配送 L16.0 | 143 |
| 16.01~16.5 | エクスプレス配送 L16.5 | 146 |
| 16.51~17 | エクスプレス配送 L17.0 | 149 |
| 17.01~17.50 | エクスプレス配送 L17.5 | 152 |
| 17.51~18 | エクスプレス配送 L18.0 | 155 |
| 18.01~18.50 | エクスプレス配送 L18.5 | 158 |
| 18.51~19 | エクスプレス配送 L19.0 | 161 |
| 19.01~19.5 | エクスプレス配送 L19.5 | 164 |
| 19.51~20 | エクスプレス配送 L20.0 | 167 |
| 20.01~20.5 | エクスプレス配送 L20.5 | 170 |
| 20.51~21 | エクスプレス配送 L21.0 | 173 |
| 21.01~21.5 | エクスプレス配送 L21.5 | 176 |
| 21.51~22 | エクスプレス配送 L22.0 | 179 |
| 22.01~22.5 | エクスプレス配送 L22.5 | 182 |
| 22.51~23 | エクスプレス配送 L23.0 | 185 |
| 23.01~23.5 | エクスプレス配送 L23.5 | 189 |
| 23.51~24 | エクスプレス配送 L24.0 | 192 |
| 24.01~24.50 | エクスプレス配送 L24.5 | 195 |
| 24.51~25 | エクスプレス配送 L25.0 | 198 |
ノート:
1.この配送料表がチェックアウトに追加されます。配送料は、チェックアウト ページで表示できます。また、表は参考用です。最終的な配送料は、実際のチェックアウトの対象となります。
2.当社が販売する多くの商品の配送料は重量ベースです。そのようなアイテムの重量は、詳細ページで確認できます。当社が使用する運送会社のポリシーを反映するために、すべての重量は次の完全なポンドに切り上げられます。
3.送料についてご不明な点がございましたら、下記の方法でお気軽にお問い合わせください。
電子メール: sales@iwistao.com
HIFI 4-Inch Coaxial Speaker Driver 8 Ω 1 Piece with 19 mm Silk-Dome Tweeter for Compact Loudspeaker
Model No: WHFSP-4IN2WCOX
This compact coaxial speaker driver features a natural-sounding 19 mm silk soft-dome tweeter mounted concentrically within a long-throw 4-inch woofer. The shared-axis arrangement is designed to deliver smooth on-axis and off-axis frequency response while helping reduce phase and diffraction issues associated with physically separated drivers in conventional two-way speaker layouts.
The woofer features a curved-profile cone and rubber surround, while the silk-dome tweeter extends high-frequency reproduction up to a specified 20 kHz. An open cast-aluminum basket supports airflow behind the cone and helps reduce power compression.
Separate woofer and tweeter terminals provide flexibility for integration with a suitable crossover network. With a 120 mm overall diameter, this driver is suitable for compact DIY loudspeakers, portable speaker projects, and custom automotive audio installations.
Key Features
- Compact coaxial construction: Integrates a woofer and tweeter within a single mounting footprint.
- 19 mm silk-dome tweeter: Designed for natural high-frequency reproduction.
- 4-inch woofer with rubber surround: Combines a curved-profile cone with a flexible suspension.
- Open cast-aluminum basket: Provides rigid support and ventilation.
- Independent inputs: Separate woofer and tweeter connections support custom crossover designs.
Testing curve

Technical Specifications
|
Parameter |
Tweeter |
Woofer |
|
Nominal Impedance |
8 Ω |
8 Ω |
|
DC Resistance (Re) |
5.6 Ω |
6.22 Ω |
|
Voice Coil Inductance (Le) |
0.04 mH at 10 kHz |
0.63 mH at 1 kHz |
|
Resonant Frequency (Fs) |
2,745 Hz |
87.5 Hz |
|
Mechanical Q (Qms) |
2.20 |
2.89 |
|
Electrical Q (Qes) |
7.91 |
0.57 |
|
Total Q (Qts) |
1.72 |
0.48 |
|
Moving Mass (Mms) |
|
4.82 g |
|
Suspension Compliance (Cms) |
|
0.765 mm/N |
|
Effective Cone Area (Sd) |
|
52.51 cm² |
|
Force Factor (BL) |
|
5.08 T·m |
|
Equivalent Compliance Volume (Vas) |
|
3.0 L |
|
Linear Excursion (Xmax) |
|
3.0 mm |
|
Voice Coil Diameter |
¾ inch |
1 inch |
|
Sensitivity (2.83 V/1 m) |
89.2 dB |
88.5 dB |
|
RMS Power Handling |
20 W |
40 W |
|
Usable Frequency Range |
4,500–20,000 Hz |
90–8,500 Hz |
Dimensions
|
Parameter |
Dimension |
|
Nominal Woofer Size |
4 inches |
|
Tweeter Dome Diameter |
19 mm |
|
Overall Diameter |
Approximately 120 mm |
|
Overall Depth |
Approximately 66.5 mm |

Use an appropriately designed crossover to blend the drivers and protect the tweeter. Frequency ranges and power ratings apply to the individual drivers; the power ratings should not be added together as a system rating. Final system performance depends on the enclosure and crossover design.