"Its big DOT matrix display and aluminium front panel could easily belong to a 1000-Euro-model. Another advantage of the TX-SR503E is its easy handling. Any beginner can easily set up this system in no time at all. The remote control is very comfortable to hold, extremely easy to use, and all keys feature a well-defined pressure point.
Due to its insistent sound and impressive volume in the bass regions the TX-SR503E takes its listeners by surprise. Its pleasantly clear and unobtrusive characteristics also contribute to the overall picture of this system. However, our test candidate did not only excel at playing movie sound tracks it also impressed with its multi-channel performance, which means it is a real all-rounder. The surround sound blends in with any transmission method as it is broad and precise at the same time. Here the Onkyo has also achieved high scores. With this A/V receiver Onkyo has proved that anything is possible, even for 400 Euro. The fact that it is able to keep its levels well, it can perform impressively even in a 30m² testing room and it features a clear treble as well as a powerful bass makes this machine extremely competitive."

„Regarding its ease of use this Onkyo is extremly popular with customers. This A/V receiver is quick and easy to set up.” “This Onkyo A/V receiver is top of the line in its price range and has an impressive performance: its levels are well adjusted and it even performs well in a 30-squaremetre sound room. Furthermore its treble is very clear and its bass extremely captivating.” Onkyo has successfully tapped the market for AV receivers in the lower price range. The TX-SR503E is well manufactured, delivers good sound and is easy to use.
Value-for-money: very good.

“…it’s one of the best-sounding units in this test and is easily the cheapest: a combination of attributes that’s always hard to beat.
There’s enough muscle here to convince with the big action scenes of Constantine, and enough refinement to keep things listenable, even when the receiver is pushed hard. Onkyo has turned its product to have a smooth, rich balance, which means that it doesn’t have the openness of rivals such as the Sony, but compensates with an easy-going nature that works impressively with a wide range of films and speaker packages. At this price, that’s a real plus…”

„No matter how inconspicuous the TX-SR503E seems to be in the living room – its performance is definitely not to be overlooked. Onkyo’s smallest seven-channel receiver impresses with a very dynamic performance. The times are over when the reasonably priced AV-receiver could not be bothered to play back multi-channel sources properly. The TX-SR503E does this with self-confidence and with a good instinct for effective plabback. The dimensions are amazing and voices are clearly audible even at a high volume – to put it in a nutshell: Listening to the 503 is a real pleasure. It is well-manufactured and the remote control is very easy to use…”
„It looks harmless, however, its performance is extremely powerful. The dynamic TX-SR503E is the best choice for those, who are looking for quality in multi-channel systems.”