I hope that they will be very quiet with the ULNA's. I've never tried a NF-P12, but it should be very quiet at low speeds (~600). Use the lowest speed adapter and mobo fan control to further reduce speed. Undervolting your CPU will also help reduce load noise/temps. Look out for manufacturing defec...

The NF-P12's I just got from Newegg came with 2 adapters, including ULNA. They are listed in the product description. Am I missing something here, or did I get a new version? Here is the Newegg link: http://www.newegg.com/Product/Product.aspx?Item=N82E16835608004&cm_re=nf-p12-_-35-608-004-_-Product...

NF-P12 is not supplied with speed adapters because it was specifically developed for CPU coolers and would be speed adjusted via mobo fan control. The NF-P12's I just got from Newegg came with 2 adapters, including ULNA. They are listed in the product description. Am I missing something here, or di...

NF-P12 is not supplied with speed adapters because it was specifically developed for CPU coolers and would be speed adjusted via mobo fan control. The NF-P12's I just got from Newegg came with 2 adapters, including ULNA. They are listed in the product description. Am I missing something here, or di...

Have you tried the NF-P12 with either of the voltage-reducing
resistors that are included with them?
My understanding is that they still get decent air flow with the
lower voltage and undoubtedly would be a good bit more quiet?

You probably do not need front fans with the Antec Solo. The hard drives have ample airflow with no obstructions. I run four Samsung hard drives which rarely exceed 35 degrees with all airflow provided by a rear Slipstream running at 700 rpm. I threw the metal front fan mount in the trash can. Even...