Daisy
Last Updated: Jul 17, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hifonics Official | 5.96 | ❌ | ❌ | ❌ |
Ultra-fine mosfets circuit maximizing power efficiency while improving sound quality
LED power (Green) and protect (Red) indicators
Manufactured in China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Includes: Amplifier. Bass Remote. Birth sheet with tested power. Owner’s manual. Mounting Screws. Warranty.
Rockville dB55 4000 Watt/2000 Watt RMS 5 Channel Amplifier. CEA Compliant Power Ratings (Rated at less than 1 % distortion) (Use these CEA ratings when matching and comparing with other CEA compliant brands such as Kicker, Rockford Fosgate, etc). 2 Ohm: 120 Watts x 4 + 500 Watts x 1 <1% THD+N. 4 Ohm: 80 Watts x 4 + 300 Watts x 1 <1% THD+N.
RMS Power Ratings: (Use these RMS ratings when comparing with great brands such as Hifonics, Earthquake, Soundstream, etc). 2 Ohm 240 Watts x 4 + 1000 Watts x 1. 4 Ohm: 160 Watts x 4 + 600 Watts x 1. Peak: (The amount of power the amplifier can produce for a split second at the loudest part of a song. 2 Ohm 480 Watts x 4 + 2000 Watts x 1. 4 Ohm: 320 Watts x 4 + 1200 Watts x 1.
High-Speed MOSFET Power Supply. Rugged switching MOSFETs for Class D in CH5. Under Voltage Protection at 10V. Over Voltage Protection at 16V. Optical Coupler Class “AB” +“D” Technology. Studio-Grade Bipolar Output Stage Transistors. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass Filter: (CH1-CH4)40Hz –4KHz /(CH5)50Hz –250Hz. High Pass Filter: 15Hz – 4KHz. Subsonic Filter: 15Hz - 55Hz.
Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD at Rated Power: < 0.05%. S / N Ratio: >90dB. Frequency Response: 15-35KHz. Damping Factor: >100@ 100Hz. 40 Amp x3. Dimensions: (W x H x L) 9'' x 2.4' x 18.6".
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| 24 HOURS STOP | 9.89 | ✅ | ✅ | ✅ |
1,800 watts max
900 watts x 1 at 2 ohms
450 watts x 1 at 4 ohms
Frequency response: 10 Hz to 500 Hz
Class D for high efficiency with big power in a small footprint
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| 24 HOURS STOP | 9.88 | ✅ | ✅ | ✅ |
Angled Terminals for Ease of Access
1,200 watts max
600 watts x 1 at 2 ohms
300 watts x 1 at 4 ohms
Frequency response: 10 Hz to 500 Hz
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| 24 HOURS STOP | 9.89 | ✅ | ✅ | ✅ |
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Hifonics | 26 |
| Rockville | 3 |
| Unknown | 2 |
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