2. speakers
  3. 1073255751

Basic question about impedance and watts

I just bought a pair of Thiel cs3.5's and am now looking for an amp. If the impedance is 4Ohms (i think this is the correct value, i didn't get the owners manual) and the recommended power is 50-150 watts (once again, a guess), how much power should the amp have? Do i need an amp that is 50-150 watts at 8ohms, or do i need an amp that is 25-75 watts at 8Ohms (assuming the amps watts double as the impedance halves)?
I guess the reason i had no luck searching for this is because its so basic.
if anyone knows the specs for these speakers, could you let me know? the owners manuals are available on Thiel's website for most, if not all, models except the 3.5s.
ketchup

Showing 1 response by marakanetz

marakanetz's avatar
marakanetz
5,473 posts
 
if amp produces 50W to 8Ohms than to 4 ohms it should double the output current or have a transformer's secondary coil stable to 4 Ohms.
Not neccessarily the wattage will double. The output power is rather dictated by peak capabilities of the output devices.
More to discover