If people where less on the influence of marketting publicity and more attune to acoustic method they will be no more subjectivistic consumers of ready made solutions or objectivistic nihilist... These 2 opposite disctinction make no sense in an acoustic tuning process where subjectivity and objectivity serve one another...
Then denouncing these products like someone just said even if they work is fanaticism...Not science...
And buying them and thinking all problem are solved is a delusion...
But acoustic is too complex for simple mind it seems...
There is place for everyone able to give information in audiogon even if he is a seller...If it is a gentleman... Why not? If not a gentleman ..... Drop it....