I am building a cab for a Traynor Mark III that I play my 76 P Bass through. I found some 15 inch Marsland Part # 7370 speakers. Any one know anything about theses speakers ? i.e. Freq. Response, handling power, optimal cabinet dimensions etc. ? Think they will sound good, especially with a Horn Tweeter (and crossover of course) ? I am looking for a vintage, PhATT low and slow kinda sound. Marsland 15 Any thoughts or input would be appreciated.