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Description
AIYIMA A3001 Class D Power AmplifierDescription Maximum output power: 300W*1 4 load Power amplifier chip: TPA3255D2 Tone chip: NE5532 DC chip: 2596 Full frequency frequency response: 20Hz 20kHz (3dB) Speaker matching impedance: 4 8 Distortion: 0. 03% when outputting 1W Working voltage: DC24 35V Signal to noise ratio: 106dB Input sensitivity: 0. 775V Dimensions (L*W*H): 120*117. 5*36MM (without protruding knob section) Bass cutoff frequency adjustment range: 40 300Hz Bass attenuation
Description
- Maximum output power: 300W*1 4Ω load
- Power amplifier chip: TPA3255D2
- Tone chip: NE5532
- DC chip: 2596
- Full frequency frequency response: 20Hz-20kHz (±3dB)
- Speaker matching impedance: 4-8Ω
- Distortion: 0.03% when outputting 1W
- Working voltage: DC24-35V
- Signal to noise ratio: ≥106dB
- Input sensitivity: 0.775V
- Dimensions (L*W*H): 120*117.5*36MM (without protruding knob section)
- Bass cutoff frequency adjustment range: 40-300Hz
- Bass attenuation slope: -12dB Slope
Panel description:
1.Power switch
2. Power indicator
3. Full/bass operation mode switch.
4. Bass up frequency adjustment knob (knob is only available in bass mode)
5. Volume knob (clockwise volume increases, counterclockwise volume decreases)
6. Audio input interface (such as CD, DAC decoder, mobile phone, TV, etc., red to the right channel input, white to the left channel input)
7. Low-pass output (connected to the active subwoofer, synchronized output with the amplifier)
8. Speaker interface (red to positive, black to negative)
9. Power interface (DC power supply must not exceed 35V)
Operation Steps
1. Make sure the VOL knob is at its minimum.
2. Connect the speaker according to the back panel interface indication, pay attention to distinguish between positive and negative.
3. Connect the audio source you want to use.
4. Connect the power supply.
5. Select the desired working mode
6. Press the power button.
7. Turn the knob clockwise to select the desired volume level.
8. In the SUB mode, the bass cutoff frequency can be changed by adjusting the SUB FREQ knob.
PBTL/SUB Switch:
When "PBTL/SUB" is switched to "SUB", SPK OUT connects to the passive subwoofer.
When "PBTL/SUB" is switched to "PBTL", SPK OUT connects to the full range speaker.
The SUBOUT is connected to active subwoofer.
Specifications
- ❶ Adopt The Instruments TPA3255D2 chip, NE5532 op-amp. Very Quiet, Runs Extremely Cool,Easy to set up,Ship With 36V 6A power adapter,so our AIYIMA A3001 Subwoofer Amplifier can driver most home passive speakers and powered subwoofers
- ❷ This A3001 TPA3255 HiFi Mono class D amplifier,the Max output 300W, Exclusively designed for the customers who pursue HiFi sound
- ❸ Built-in low pass filter for Subwoofers With Full-Frequency and Sub Bass Switchable,Can be switched to subwoofer bass or full frequency mono amp, Can be connected to passive suboower,active subwoofer or passive speaker
- ❹ Add full-range mono amp & Subwoofer amplifier switchable switches to adjust the input ways according to your different needs
- ❺ Simple compact design,And the exterior design is delicate and beautiful little amp,It can match with your computer/ desktop /Home theatre system and so on
- Please Note: The 300W power mentioned in the title is the peak power of the product when paired with a 48V 10A power supply and a speaker impedance of 4Ω. The A3001 is sold with 36V 6A, please refer to the A3001 Power Meter below for specific power figures.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2152 reviews
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Product Reviews
★★★★★ 5
Great quality Soap
Scent: Oatmeal Shea (Unsented)
This natural bar soap is absolutely fantastic! I’ve purchased it multiple times now, and it has never disappointed. The quality is consistent with every bar — it lathers well, cleans thoroughly, and leaves my skin feeling fresh without any dryness.
I really appreciate that it’s made with natural ingredients, and the scent is clean and refreshing without being overpowering. It lasts a good amount of time, making it a great value as well.
Overall, this is a high-quality soap I keep coming back to. The fact that I’ve bought it multiple times says it all — it’s reliable, gentle, and one of the best natural soaps I’ve used. Highly recommended!
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Reviewed in the United States on November 7, 2025
★★★★★ 3
Sometimes Size Does Matter
Scent: Alpine & Spice, Scent: Alpine & Spice
Let me just get this out of the way now the soap itself smells decent, nothing wrong there. I only wish I got another cent. Not that this one smells bad it’s just it wasn’t my cup of tea. I’m mostly disappointed about the size because I’ve been through this before. The soaps themselves are not big enough to fill out the box as you can spot in some of the pictures and video. I honestly feel like the soap size was different in the pictures of the customer reviews that I saw. Each bar may last me a week and a half and that’s with a soap saver. To be honest, the box that it came in would fit two decent size soaps if they filled out the box.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
As expected
Scent: vanilla orange
Love the scents of this soap. It's gentle on my skin and leaves me clean, fresh and soft.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
A Comprehensive Balanced History of the Guadalcanal Campaign -- Must Read!
Format: Hardcover
I've read a number of good books on the Guadalcanal campaign, and always thought that "Neptune's Inferno" by Hornfischer was the absolute best.
I was wrong. Although Hornfischer does a superb account of the Navy and its travails and triumphs, Inferno doesn't delve deeply into the Marine (and Army) land battles. This book does both. Moreover, it provides a continuous timeline of both, and does so in such a way that the reader better understands both as related actions. For instance, I was never really aware that for the first three and a half months the Americans controlled the seas during daylight, and the Japanese at night (sounds a little like Viet Nam). The November 13 sea battle between Americans and Japanese -- in which US cruisers took on Japanese battleships and two American admirals died -- was in fact a clash of a major last ditch effort by the Japanese to reinforce their troops and destroy Henderson Field, which would have allowed them to control the seas both day and night. By that time there had been multiple bloody battles ashore between the Marines and Japanese, with the balance favoring the Marines, but if the Japanese had wrested control of the airfield and seas that would have been old history. The book includes a good view from the Japanese perspective, and some little known historical tidbets as well, e.g., Guadalcanal received its name from the Spanish home town of a ships officer who accompanied Spanish explorer Don Alvaro Medana, who discovered the island during a 1568 expedition to discover the fabled King Solomon's gold mines. Who knew? :-)
Bottom line: I highly recommend this book, both for its balanced coverage of the entire campaign, land and sea, and even more for its integrated narrative -- you know what was taking place (or had taken place) on almost a day-by-day basis, which allows the reader to fully appreciate how actions ashore influenced those at sea, and vice versa.
IMO, a must read, even for those who thought (like me) that they knew it all!
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Reviewed in the United States on October 12, 2017
★★★★★ 5
The Island Of Death
Format: Hardcover
On August 7th, 1942, American Marines stormed ashore on Guadalcanal. What lay before them was a six-month odyssey of fighting against the best of what the Japanese had to offer. In this fine book, author Joseph Wheelan describes the battle that turned the tide in the Pacific War.
The Japanese had started construction of an airfield on Guadalcanal. If completed, Japanese aircraft would be able to harass American convoys and threaten Australia. The Americans seized the airfield and eventually, planes from the Cactus Air Force began attacking the Japanese.
Throughout the book, the reader learns about all phases of the Guadalcanal campaign, including the battles of Alligator Creek and Bloody Ridge. On the sea, the Americans and Japanese slugged it out at Savo Island, as well as the great naval battles of November, 1942. Names such as Chesty Puller, John Baslone, "Archie" Vandegrift, Joe Foss, and "Bull" Halsey became household names in the United States.
Each side lost many men, ships, and planes, but the tenacity and, finally, the industrial might and the ability to rapidly replace losses, led the Americans to victory. Never again would the Japanese regain the offensive in the Pacific War.
"Midnight in the Pacific" is a very good book, and the author has done a good job of describing all of the main points of the battle. Each chapter is broken down into a single month's worth of action, and the narrative is well-written. Highly recommended.
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Reviewed in the United States on September 25, 2017
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