The sound quality of a great or even a good low powered SET is on a very different level than even the “best” high powered amplifiers, this is the primary reason for owning true easy to drive high sensitivity speakers IMO. Of course there are other benefits inherent to such designs. Whatever abilities speakers like your Pendragons might have is ultimately negated by the need for high powered amplification. The other issue that we’ve discussed and I’ve harped about often is the built-in amplification of a half active speaker. In this scenario you are stuck with whatever they put in there and will never properly integrate with its other half without matching amplification or use of typical homogenizing so called audiophile cabling, this is a fact. Set up of 4 boxes has additional complication that one should keep in mind contrary to claims of setup flexibility. Given all this I’m wondering how vocals are the competency of such designs when you’ll always end up with two different voices singing the same note trying to sound as one.
david
I think these are all very fair and legitimate questions and concerns. I agree these are potential problems.
The specific answer to your question is that I did not hear a second voice coming out of the woofer column. If a second voice was coming out of the woofer column I simply am not sensitive to this particular discontinuity.
The broader answer, I think, simply is that audiophiles are more sensitive to and less sensitive to different compromises.
For whatever subjective reason I feel that planar loudspeakers in general reproduce solo vocals more convincingly than other speaker types. This is my subjective starting point, and my extremely firm, experience-based personal preference.
Putting it differently, and stipulating that SET amplifiers are sonically superior to high power amplifiers, I experience with vocals a greater suspension of disbelief from planar speakers driven by sonically inferior high power amplifiers than I do from any other speaker topology driven by SET amplifiers.
This planar speaker starting point presents one with the questions of electrostatic (MartinLogan, Soundlab) versus ribbon (reconditioned Apogee, Alsyvox) versus magnetic quasi-ribbon (Magnepan, Analysis Audio); full range planar versus hybrid planar; and full range planar without external subwoofers versus full range planar with external subwoofers.
I view these options as relatively fine distinctions, with the decisions driven by subtle and subjective and personal preferences. My personal decision tree goes something like this:
1) I prefer the slightly greater corporeal body of a ribbon driver over an electrostatic driver.
2) I have a preference for avoiding the least sensitive (least efficient) planar options to minimize the sacrifice of dynamics and "jump factor."
3) A full range planar without dynamic driver cone support and "oomph" of some kind does not give me the realism and power and density I want in the lower midrange/upper bass frequency range. Thus a full range electrostatic does not work for me.
4) I think subwoofer integration is more likely to be successful when it is designed into the original system than when it is grafted on afterwards with external subwoofers. (For example, four column system (Evolution Acoustics MM7, Gryphon Kodo) versus REL "six-pack.")
5) If I actually experience a sonic discontinuity between the Gryphon amplifier in the bass tower and my choice of amplifier for the ribbon panel the answer simply is to replace the latter with a Gryphon amplifier. This is an easy swap. (The one component shoot-out I look forward to conducting someday is to compare to my first amplifier choice of high power, push-pull tubes a Gryphon amplifier on the one end of the amplifier spectrum and a high power SET amplifier on the other end of the amplifier spectrum.)