The Canton Chrono 509 DC are excellent boxes for half the price, since there is already the successor Canton Chrono 509.2 are, but they were probably just mainly look slightly pimped (patch feet, a matter of taste). Compare reviews there is not yet mE after. The Chrono 509 are classic 3-way bass-reflex speakers, genuine all-rounder, but no pure rock pit in the sense of "kick-boxing". For me several times corresponding KEF Klipsch speakers or have been recommended, but there is only twice the price, and I was not able to pre-listening. Nevertheless you will develop enough pressure that also rock, heavy metal and HC do with them fun. Its strengths are, however, clear in jazz, pop and classical music. Here they are in the hills and in the middle region unexpectedly clear and very clearly locatable and with a very nice, warm bass sound simply outstanding, especially even at moderate volumes. And they have even enforced in tests against the B & W 683, which one indeed has to create only once and which then cost just doubled. In my pair were after 12 hours another significant sound improvement. The copying must be respected and waited patiently at first. The effect is amazing! The boxes provide a very nice space, even outside the actual stereo point. Perfectly. The workmanship is a perfectionist and appearance, depending on whether with or without a cover, or a little more understatement- Manta driver-moderately. Plain or something set up, but in any case, without any blemish. The aluminum membranes with aluminum bezel rings are worked perfectly. Purchase and delivery, as is usual with Amazon and its MarketPlace partners, as always easy and in record time. I join all previous speakers in: Buy as long as stocks last. After that it is twice as expensive-at least. And the next sound improvement will cost already loose at least EUR 1000, - more the couple. To Ask? For you! I run the 509 Canton Chronos DV with a Denon PMA 710 AE and a Denon DCD 710 AE, and a Pro-Ject 1 Xpression Ortofon with Red TA. Record is still unbeaten.