Please tell me which monitors should I choose KRK 5G5 or KRK 7G5? The main questions are: Does the 7-inch monitor model hiss (make noise) as it was in the KRK 7G4? Is the bass (low frequencies) normal in KRK 5G5? Which ones are better to buy 5 or 7 for a 6x3 room? Will the ADAM T5A/T7A be better than the KRK 5G5/7 G5? Your impressions. Also, please recommend an alternative to these monitors.