freakybluecamel asked:
? an amp? re combined with 1 8 inch speakerand that a 4 Ohm I wanted to use a 1x12 cabinet with a vintage 30 Celestion speaker 8 Ohm. I don 't think that all the damage has occurred unless using a loudspeaker installed less than the minimum impedance (4 Ohm) has been tried, but I wanted to be sure. The tubes are 12AX7 and EL84. The second amp? King? 12AX7 and 6L6 's. Thanks
? an amp? re combined with 1 8 inch speakerand that a 4 Ohm I wanted to use a 1x12 cabinet with a vintage 30 Celestion speaker 8 Ohm. I don 't think that all the damage has occurred unless using a loudspeaker installed less than the minimum impedance (4 Ohm) has been tried, but I wanted to be sure. The tubes are 12AX7 and EL84. The second amp? King? 12AX7 and 6L6 's. Thanks

No it won’t. It’s fine if the impedance rating of the speaker is equal or higher than that of the amp.
No. You can always use a higher impedance speaker, but it will generate less volume at the same output level. If you go the other way (speaker less than amp’s impedance rating), you will most likely blow the speaker before any damage to the amp occurs as most amps have some overload protection (like fuses). It’s best to use speakers that exactly match the amp’s output spec for the best sound – impedance matching lets the amp perform to its maximum.