Choosing among AV receivers & amplifiers is a fit decision: you need to match the receiver to the kind of surround setup and connections you actually plan to use. The Onkyo HT-RC330 points toward a straightforward home theater with HDMI video and audio handling. The useful question is whether that defined setup fits your room and priorities.
Quick verdict
At USD 110, the Onkyo HT-RC330 Home Theater AV Receiver is a focused pick for a buyer who wants a clearly defined home-theater setup rather than an open-ended feature brief. Its 5.1 designation gives the purchase a specific use case, while the used condition remains an important part of the decision.
Onkyo HT-RC330 Home Theater AV Receiver

The HT-RC330 gives a buyer a remote and a digital tuner alongside support for DTS-HD Master Audio, Dolby TrueHD, and Dolby Digital Plus. That combination is a concrete reason to choose it if your viewing setup also includes regular radio listening. The limitation is the unit's used condition: shoppers seeking new equipment may find that a decisive trade-off. The black finish is specified, but it is a cosmetic detail rather than a reason to choose the receiver.
Who it suits
The Onkyo HT-RC330 suits someone who wants a home-theater receiver with radio listening built in. AM/FM capability is useful if broadcast radio belongs in the same system, while the included remote supports seated control. This is a practical match for a buyer who wants those specific functions alongside surround playback, not a vague promise of more.
What stands out
HDMI is identified for both audio input and output, and the receiver handles HDMI video and audio. That is a concrete fit for a home theater built around HDMI-connected gear. The named Dolby and DTS formats also give the receiver a clear surround-audio role, rather than leaving its purpose unclear.
Meaningful trade-offs
The 5.1 scope is the key trade-off to weigh. It gives the purchase a clear target, but you should match that channel scope to the planned room and speaker arrangement instead of assuming a broader theater configuration. The unit's used condition is another concrete qualifier. Taken together, the Onkyo HT-RC330 is best approached as a defined setup choice, not an all-purpose answer for every home theater plan.
Bottom line
If the Home Theater AV Receiver role fits your room and expectations, the Onkyo HT-RC330 is a focused choice at USD 110. Its appeal comes from a specific surround format, HDMI connectivity, radio capability, and included remote; the right decision depends on whether that scope and used condition suit your needs.