Quick take
Choosing among AV receivers & amplifiers means resolving a practical tension: do you need HDMI for TV and digital surround, or do Bluetooth, FM, removable-media playback, and a 5.1 amplifier layout matter more? Headline peak-power figures alone do not settle that choice. Start with connection and playback features, then weigh condition and price.
For HDMI planning, Onkyo explicitly lists HDMI audio inputs and outputs and names 5.1 formats. Darupsun and Blitzmax include Bluetooth in their product information, while Darupsun and Vipjq explicitly list 5.1 channel. Blitzmax names SD Card, U disk, MP3, FM, and a remote. The listed prices range from USD 110.00 to USD 269.36, so use case is the clearest way to narrow the field before comparing numbers.
Listed-price comparison
The table keeps the four listed prices easy to scan without turning the spread into a discount or savings claim. The bars are a visual price reference only.
| Product | Listed price | Price bar |
|---|---|---|
| Darupsun 3600W Peak Bluetooth 5.1 Amplifier | USD 269.36 | |
| Vipjq 3000W Peak 5.1Channel Amplifier | USD 119.45 | |
| Blitzmax 800W Bluetooth Home Theater Amplifier | USD 117.49 | |
| Onkyo HT-RC330 Home Theater AV Receiver | USD 110.00 |
Decision matrix
- HDMI and digital surround: Onkyo HT-RC330. HDMI audio input and output are explicit attributes, and the description names DTS-HD Master Audio, Dolby TrueHD, and Dolby Digital Plus.
- Bluetooth listening: Darupsun and Blitzmax. Bluetooth appears in the Darupsun title and in the Blitzmax description, making both relevant for wireless playback.
- Radio and removable media: Blitzmax. Its description names FM, SD Card, U disk, and MP3 playback, along with a remote control.
- Named 5.1 amplifier format: Darupsun and Vipjq. Both list 5.1 channel and a 1V auxiliary level output, so those shared attributes do not create an advantage for either one.
- Condition priority: Darupsun, Vipjq, and Blitzmax are marked new, while the Onkyo is marked used. That distinction belongs in the final choice alongside connectivity.
Product notes
Darupsun SR8800 3600W Peak Bluetooth 5.1 Amplifier

Darupsun's SR8800 is aimed at a home setup that combines the title's Bluetooth capability, 5.1-channel wording, and subwoofer focus. The attributes add a 1V auxiliary level output, giving a shopper a concrete connection figure to compare. That number should remain neutral rather than being treated as a performance ranking. A reason to choose it is the combination of wireless playback language and a named 5.1 layout. The limitation is price: it carries the highest listed price among the four. It makes sense when those title cues matter more than staying near the lower end of the price range.
Vipjq AV-9898 3000W Peak 5.1Channel Amplifier

Vipjq's AV-9898 keeps its title centered on a 5.1Channel subwoofer amplifier, with a listed 1V auxiliary level output and 9 mV (± 2 mV) microphone input sensitivity. The concrete reason to choose it is a straightforward amplifier brief with a named model and channel configuration, rather than a receiver title built around HDMI. Its limitation for a strict low-price decision is that the Onkyo is listed lower. The 3000W Peak wording is best read as a raw specification, not as proof that it outperforms another amplifier. Shoppers choosing it should prioritize the stated amplifier format and AV-9898 model identity.
Blitzmax 800W Bluetooth Home Theater Stereo Amplifier

Blitzmax's description names Bluetooth, SD Card, U disk, MP3 playback, FM, and a remote control. It also lists Class A amplifier and gives both 800W peak audio power handling and a 400W RMS rating; those are raw specifications, not a basis for declaring a winner. The practical reason to choose Blitzmax is the range of playback methods described for a home theater stereo setup. The limitation is explicit too: its attributes say Has written warranty: No. That makes the feature set broad, but the warranty line may matter to shoppers who prioritize documented coverage.
Onkyo HT-RC330 Home Theater AV Receiver

Onkyo HT-RC330 is a direct fit for a TV-centered setup because its attributes explicitly list HDMI audio inputs and outputs. The description also names AM/FM, a remote, and 5.1 formats including DTS-HD Master Audio, Dolby TrueHD, and Dolby Digital Plus. The included test-video claim says HDMI video and audio were tested, giving the connection story useful detail. The limitation is condition: it is listed as used. Choose Onkyo for HDMI-based home theater routing and digital surround formats, provided a used unit fits the buying brief.
Final recommendation by use case
- For HDMI-based TV and surround setup: Choose Onkyo HT-RC330. The Home Theater AV Receiver title phrase and explicit HDMI attributes make its role clear, with used condition as the key qualifier.
- For Bluetooth with a named 5.1 subwoofer amplifier brief: Choose Darupsun SR8800. Its title combines Bluetooth, 5.1, and subwoofer language; its highest listed price is the tradeoff.
- For Bluetooth plus SD Card, U disk, MP3, and FM playback: Choose Blitzmax. Those playback methods and the included remote are specifically described, while the absence of a written warranty remains the limitation.
- For a lower-priced 5.1 amplifier title: Choose Vipjq AV-9898. Its 5.1Channel and subwoofer wording are direct, and the model identity gives the comparison a clear anchor.