UNOFFICIAL JEFF ROWLAND INFO DATABASE
JRDG - The most beautiful amplifiers around
Concerto
Concerto preamp
Available around 2007
The Concerto in its final guise was derived from the Synergy. The Concerto was in production for only a short time. It has also vanished from the Rowland site, as if it never existed. But it has actually been around for a couple of years. It was available as preamp and as an integrated amp. It had a Synergy-derived preamp section with transformer-coupled inputs and a linear power supply. An added ICE-Power module turned it into an integrated amplifier.
4998 euro
Inside
Note the linear power suppy (hurray) and lots of space. The space is for the IEC power modules as the Concerto was also available as an integrated amplifier.
Problem Solving
Coherence, Synergy, Concentra, and Concerto IR Remote Control lock-up
The remote controls for the above listed products have an internal capacitor that can cause the microprocessor to lock when the battery has been nearly drained. This problem will continue even after a fresh battery has been installed. This capacitor allows the remote to continue to function even after the battery has become very weak. The solution to this problem is simple: remove the new battery and allow the remote to stand overnight with no battery installed. Once the battery is reinstalled in the morning, the remote should function properly again.
Complete lock-up
It can happen that the Concerto locks up when you operate many buttons at the same time and also adjust the volume. All you need to do is unplug the powercord, wait for 10 seconds and reconnect. If you reconnect too quickly, the Concerto may not work. The same is true if you swap the power cable or change the position in the extensionblock. As a rule of thumb: always wait 10 seconds before reconnecting the power.
How the search for audio nirvana led to the creation of this site
Info, Tips, Tricks and Insights
How to optimise your system
Streaming, USB, Firewire,
Computer Audio
Current and Classic CD players, Cables, Accessories and more
Jeff Rowland Info Database, Cool equipment, Classic CDP's
