Onkyo vs Denon vs Marantz

Which is more Reliable between Onkyo / Denon / Marantz - accoring to statistics and CHAT GPT So this has been bothering for a long time, we sell plenty receivers and what we realised is that faulty / comebacks are mostly Denon. Surprised since they ask premium prices compared to Onkyo.

These are the stats according to CHAT GPT worldwide : The best current retailer reliability dataset I could find is from Digitec/Galaxus, which publishes the percentage of AV receivers that develop a warranty defect within the first 24 months. Depending on the country snapshot/date, the figures sit roughly around:

Brand	Defect within first 24 months
Onkyo	about 2.2–3.2%
Marantz	about 2.8–3.3%
Denon	about 3.6–4.9%

One recent Galaxus dataset shows Onkyo 2.5%, Denon 3.4%, Marantz 3.4%.  Another shows Onkyo 2.6%, Marantz 3.3%, Denon 3.6%.

So, based on the best statistical evidence I can find, I would currently put them roughly:

Onkyo → slightly fewer warranty failures Marantz → middle Denon → slightly more warranty failures

But the difference between Denon and Marantz is tiny — essentially around 3.3–3.4% in this dataset — so I would not call Denon inherently unreliable.

Something more interesting appears when you look at returns rather than confirmed faults. Denon is consistently noticeably higher:

• Onkyo: about 2.5%

• Marantz: about 3%

• Denon: roughly 5%

Our own personal stats shows a very similar faulty / return ratio with Denon being the most unreliable with a 5 out of a 100 return, Marantz 2 out of a hundred and Onkyo only 1.5 out of a hundred.

Brand	Faulty out of 100	Your defect rate
Denon	5	5%
Marantz	2	2%
Onkyo	1	1%

Something to think about before buying a receiver.....