I have some SRAM 506 on (modern) Sunn Ringle and they are silent Also have Shimano Deore on Mavic XC517 & dented one the first time I did a (standing/manual) drop off onto concrete - Hubs are good though!
Also have Bontrager Ranger wheels & hubs and again - silent, light & reliable.
Likewise Azonic Outlaw, but not that light... Do have some French Try-All wheels too - nice & silent & light, but the spokes loosen every 2-3 months on mine..[/u]