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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
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Description
Powerbass ACS-500D - Mono Compact AmplifierPowerBass is pleased to introduce our newest series of Class A B full range and Class D bass amplifiers. Borrowing from our classic ASA series, these new amplifiers offer the most desired features in the most compact chassis allowable. To accomplish this we selected SMD parts and engineered a brand new 6 oz kg high density heat sink engineered for maximum efficiency and cooling. The result a line up of two, four and mono channel models that offer
PowerBass is pleased to introduce our newest series of Class A/B full range and Class D bass amplifiers. Borrowing from our classic ASA series, these new amplifiers offer the most desired features in the most compact chassis allowable. To accomplish this we selected SMD parts and engineered a brand new 6 oz/kg high density heat sink engineered for maximum efficiency and cooling.
The result a line-up of two, four and mono channel models that offer great performance and fantastic value. Ultra efficient, the ACS amplifiers produce plenty of low distortion high fidelity audio in a footprint small enough to fit nicely in nearly any vehicle. If you are seeking the perfect mix of performance and value look no further.
FEATURES
- 500 Watt High Efficiency Class D Design
- 1-OHM Stable Mono Block Amplifier
- MOSFET Power Supply
- High Level (Speaker)/Low Level (RCA) Input
- Remote Soft Delay Turn On/Off Circuit
- Variable Low Pass Electronic Crossover
- Selectable 12dB Bass Boost EQ
- Variable Gain Control
- Remote Level Control Port (for optional PB-GAIN1 controller)
- Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output.
- Variable Subsonic Freq: Variable 15 Hz - 50 Hz
- Inputs: RCA, 1 Pair Input, 1 Pair Speaker Level Input
- Equalization Boost/Cut: Switchable 0/12 dB @ 45Hz
- Subwoofer Frequency Range: 10 Hz - 250 Hz
- Power Supply: Unregulated PWM
- Height: 2.0"
- Width: 7.1"
- Depth: 9.7"
- Switchable Subwoofer EQ: 0 / +12 dB @ 45 Hz
- Subwoofer EQ Frequency: 45 Hz
- Variable Subwoofer EQ: Switchable 0/+12 dB
- Low-Pass Crossover Freq: Variable 30 Hz - 250 Hz
- High-Pass Crossover Freq: n/a
- Peak Power: 1000 watts
- Crossover Slope: 12 dB
- Dimensions (in Inches): 9.7" x 7.1" x 2.0"
- Input Sensitivity: 0.25 - 6.0 Volts
- S/N Ratio: >90 dB
- Total Harmonic Distortion: 0.5% at Rated Power
- Strapped Output Power @ 2ohms: N/A
- Output Power (14.4 V) @ 4 ohm: 200 watt x 1
- Output Power (14.4 V) @ 2 ohm: 300 watt x 1
- Output Power (14.4 V) @ 1 ohm: 500 watt x 1
- Channels (mono): 1
- Frequency Response: 10 Hz - 250 Hz
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
4.4 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Found a great chair
Color: Onyx Black
I'm really glad I looked around as long as I did, because this chair has been fantastic. It went together easily, all the ways it adjusts work great and are easy to figure out (even the back-tilt-lock thingy), and it's really comfortable even after a whole day in it. I am on the larger side, and haven't had a single creak out of the thing. It's very sturdy. The mesh of the seat and back are great here in the desert as well.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Has good height and back support
Color: Onyx Black
I am very happy with the chair. I did replace the wheels with new casters. Didn't even try the originals though they look sturdy because they appear to be wider than others that I have seen. The arms are a little fiddley and can move when you don't necessarily want them to. What more than makes up for those minor issues is the fact that it easily fits my long legs and has great back support. It is mesh so warmth is not an issue. I think the mesh helps with the comfort rather than being sunk into a pillow. As a bonus, there is a leg rest. I can get comfortable enough to take a nap or can watch a movie while reclined. It feels very sturdy while in that position. I weigh about 205. Happy with the chair and I would recommend it for those who have a need. Great value.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Very sturdy and comfortable for the price.
Color: Onyx Black
The chair is easy to put together and very comfortable. I like that you can adjust how easy it reclines back, and absolutely love the reclined position with the foot rest up. Kinda feels like zero gravity.
The foot rest is best when you’re in a reclined position. If you have it up while in an upright position, it’s a little awkward because it’s not much lift. Only thing I don’t like is that when it’s tucked under the seat, it takes up space (in case you like to fold your ankles under the seat - it will be in the way).
Seat is wide and comfortable short term. I needed to get a cushion as I sit on it for 12 hours a day and was getting sciatica after a while.
Rolls really smoothly. A lot of chairs don’t move as smooth because of their bulkiness, but this one is really smoothly.
Very sturdy and well made for the price. Highly recommend.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Love my chair!!!
Color: Onyx Black
Love my chair! I’m a student with rheumatoid arthritis and this has made studying much more comfortable. It has great back support, is really sturdy, and easy to use, I don’t feel like I’m going to fall when I tilt it back and use the footrest. It looks good too. It fits in well with my renovated warehouse apartment. Awesome value for the money. I bought mine on sale and it is worth every penny. Thanks!
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Reviewed in the United States on March 3, 2026
★★★★★ 5
My first time…and I like it.
Chairs can be tough to buy new without trying them out in person. You have no idea how it will feel, adjust, or breathe as you sit into it. The only way to know if what you’re getting is good or not is by taking a strangers word on the internet that it’s good. That being said, I’m very happy I listened to the strangers on this one.
Coming from exclusively leather, cushiony chairs my whole life, I had no idea what to expect out of its mesh cousin. I was looking for something comfortable like a leather seat with the added breathability that mesh provides. This chair hits all marks. It’s comfortable, it breathes, is fully adjustable and comes with easy to read instructions backed up by the best customer service I’ve ever received online in my last 20 years on the web.
The curves and contours of the chair fit my 5’10” 250 lb. frame nicely. The pneumatic adjustment is firm and cooperates well with any adjustments you might need. The upright position makes me feel like I slouch too much (which I probably do) and the lowest position almost makes me fall asleep (which I probably need). The casters glide as if on ice (after an upgrade, more on that later) and have no trouble changing course. The wheels might actually slide too well as now I have to plant my feet to stop myself on my wood floors. There is a “not included but provided upon request” lumbar pillow. The cushion is high quality but my back didn’t take to it very well. Not a knock on the chair, just my bad back. All in all, 5/5 so far.
All of Assembly is easy if you’ve ever put together any office chair ever. It’s the same. No surprises there. Steel construction with steel screws and a provided Allen wrench for the initial build. I would suggest using a battery powered drill at low speed for the screws. Having a power tool makes the job much quicker but isn’t necessary. All of the pieces are clean and free of any machining burrs. Again, 5/5.
Now we get to the customer service. The entire reason I decided to go with this chair was based on feedback provided by past customers. And I’m sure glad I listened. The lumbar pillow I spoke about only took a short email to acquire. Their friendly, helpful, and well spoken customer service agents are quick to reply and are always asking for feedback. I also mentioned earlier in the review that my casters were now good. That does mean the ones that it includes were not up to the standard of the rest of the chair for my weight. That being said, my wife, who is much smaller than I am, had no issues scooting around on the included wheels. Anyway, the company ended up sending me a replacement set of high quality nylon casters at no charge that tied up this experience in a nice little bow. The company did request the old wheels and base the be returned but the prepaid shipping label was provided. The option to have them arrange pickup of said items was also available. 5/5 with ease.
So there it is. My first review ever. I would be doing the manufacturer a disservice by not detailing the entire experience from exceptional construction to customer service rivaled by none. If you’re looking to give mesh chairs a shot, don’t be afraid. You will not regret it.
(I know this review was all positive. It was not sponsored. Unless you count the upgrades, but anyone can get those.)
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Reviewed in the United States on February 13, 2023
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