HIFI 4 Inches Full Range Speaker Unit 4 Ohms 60W 60Hz-23KHz 92dB Max For Monitor Tube Amp

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HIFI Speakers

HIFI 4 Inches Full Range Speaker Unit  4 Ohms 60Hz-23KHz 92dB Max Japanese AKISUI4 For Monitor Speakers Tube Amplifier DIY Audio   Sold as one pair (2 pcs) Model No: WHFRS-AKISU4SP This full-range speaker unit is made of double 80mm magnet, tarpaulin edge, composite cone, aluminum alloy frame and 25mm...
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HIFI 4 Inches Full Range Speaker Unit  4 Ohms 60Hz-23KHz 92dB Max Japanese AKISUI4 For Monitor Speakers Tube Amplifier DIY Audio

Sold as one pair (2 pcs)


This full-range speaker unit is made of double 80mm magnet, tarpaulin edge, composite cone, aluminum alloy frame and 25mm coil, which is used in model AP5001 that this monitor speaker cabinet is designed by Japanese designer Mr. Kameyama presided over the design with AS100FL 42Ex speaker unit. After launched in Japanese market, AP5001 achieved very good response, and it was elected as monitor speaker cabinet by Japan's Fuji TV station. The sound is very accurate, full-range balanced, low distortion. This is from her exquisite workmanship can be realized, a large magnet, large elastic wave, long stroke, composite cone, aluminum alloy frames, that is carefully designed products when a glance.





Listen to the sound is far wider sound field, better resolution, better layer structured. We are intoxicated by the music, the melody of each neuron start wondered if peristalsis, high, medium and low frequency is very balance, so fantastic! The sound of the human voice is warm, soft and pure, and natural loose, smaller noise pollution, rich musical taste, great flavor, also has a good low-frequency performance, is a treat for the ears, very enjoyable for long time listening and you don’t feel tired.


Its sound quality is excellent, fresh and pure and hearty, the overall coherence and excellent resolving power, high-frequency delicate transparent, rich in detail, round and full midrange, natural and real. Also its sound is very charming, it will achieve a very good bass performance particularly if adopt maze speaker cabinet. Its treble limit is 23KHZ but general treble can only reach 20KHZ.







Recommendation of Tube amplifier and power amplifier supported as below.


EL-34B, 6P6P, 6V6, 5881, 6P3P, CF-50, KT88,300B single-end amplifier, or push-pull amplifier. And, class T digital amplifier, HIFI amplifiers and other.


Product Specifications

1. Rated power: 60W

2. Power range 60W-100W

3. Diameter: 4 inches

4. Impedance: 4 ohms

5. Frequency range: 60Hz-23 KHz

6. Sensitivity: 89 ±3dB

7. Diameter of the front panel: 105mm

8. Distance of diagonal screw holes: 115mm

9. Distance of same side of the screw holes: 82mm

10. Height: 70mm

11. Diameter of cutting hole: 98mm

12. Weight: 1.1kg / unit





Matched 4 inched full range empty cabinets

Effect photo after assembling with the caabinets



Applications by DIY









Press artical of original manufacturer by Japan


AP5001(II) Development of evolution-based full-range unit for the professional on-board unit

10cm original full-range unit that was newly developed this time, parts and materials from thoroughly review, adopted the Japanese paper fibers mixed original cone paper and 6N pure copper voice coil. The improvement and third harmonic distortion of further efficiency was able to significantly reduce more than 20 db. Average output sound pressure level is achieved high efficiency of 89db / w / m. The resonance point of each part Ri due to be in total manner tuning, to reproduce the exact harmony on the time axis in a wide range of frequency bands.


In addition to a powerful magnetic circuit and the copper short ring, and strive to enrich the damping performance of the low frequency band, was gently adjust the damping roll of high-end frequency band.


Used as monitor speaker by Fuji Television Network V9 studio







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, ePacket 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

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.

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