IMO, they are no more or less critical than other high end speakers. I've used Conventional Class AB, ICE and tube amps to drive them. Ive also tried a few different IC's and speaker cables now...All the changes are readily apparent to my ears.
The DCX will allow you to change gain very easily from the front panel of the Behr. This makes them flexible enough to use with differing amps. In that way, you could consider them somewhat forgiving and flexible.
Taking into account that the Behr is a stock unit and not a high dollar component..You still need to put quality components in the amplification and front end as it will matter. Some guys have asked whether it matters what NOS tubes you use in upstream equipment as it seems that the DCX would be a limiting factor..BUT, it does make a difference..as said..these changes are easily heard.
What makes them more forgiving is their hi efficiency at 100 dB, thus you can use a wider range of amplification to drive them.
The DCX will allow you to change gain very easily from the front panel of the Behr. This makes them flexible enough to use with differing amps. In that way, you could consider them somewhat forgiving and flexible.
Taking into account that the Behr is a stock unit and not a high dollar component..You still need to put quality components in the amplification and front end as it will matter. Some guys have asked whether it matters what NOS tubes you use in upstream equipment as it seems that the DCX would be a limiting factor..BUT, it does make a difference..as said..these changes are easily heard.
What makes them more forgiving is their hi efficiency at 100 dB, thus you can use a wider range of amplification to drive them.