Let's list some negatives for each manufacturer, so we can rank the list better and maybe even eliminate a few more.
Revel Speakers:
- All speakers have rear firing ports. This is unfortunate. Front firing ports are not only less forgiving of room placement, they most of the time even sound better.
- Looks, looks, looks! In this day and age, speakers with sharp corners are not very pleasing. While the Ultima2 line looks flawless, the Performa line needs a facelift. I would like to see slightly curved cabinets and piano black finish as an option.
- All speakers are now made in Mexico
KEF:
- Now and has been a Chinese company for nearly 20 years. All of their speakers (except for the Reference line) are made in China.
- Unfortunately the R-series and the Reference Model 201/2 have rear firing ports.
Paradigm:
- All loudspeaker enclosures are now made in China. The speakers themselves and the drivers are still assembled in Canada.
- Conflicting looks. On the one hand, the cabinets look flawless, are curved, and offer piano black finish. On the other hand, they have cheap looking and made aluminum face plates, feet, midrange/tweeter chambers, etc.
- High end technology ONLY in the Signature series, i.e. beryllium tweeters, neodymium magnets, etc. Even the Studio series is plain Jane. No copper end caps on the poles, no shorting rings, no underhung motors, no beryllium tweeter diaphragms, no neodymium anywhere, etc.
Dynaudio:
- Hits against performance. While the Focus series and above are on average +/-2dB, a lof ot the lower end models are +/-2.5dB to +/-3dB.
- High end technology only in the Focus series and above. And even there it's limited to only a beryllium tweeter magnet and possibly an underhung midrange/mid-woofer motor?
- All speakers have rear firing ports
- Contour and Confidence series monitors all have the tweeter below the woofer. I'm not a fan of this. Possibly shows poor design choices and a sacrifice. To correct a downward angled lobe, the monitors had to be fliped upside down.
PSB Speakers:
- Limited selection, with only the Synchrony and the Image lines.
- All speakers are made in China.
- Synchrony line is not available in piano black finish.
- Synchrony monitors all have tweeters on the bottom