Hmmm ...
So Ohms Reduces Wattage???
- Thread starter Inspector #20
- Start date
Jethro Rocker
Ambassador of Live & Loud Action
8 ohms more resistance, SS power, less ouput.
OP
Need to change that....
In a solid state amplifier, where an impedance matching output transformer is usually absent, the power output will change with the impedance load. This is a normal characteristic of a solid state amp. When the impedance rating of the solid state amp is exceeded, there is a greater chance of output transistor failure/overheat.(example: the amp is rated to run loads between 4-16 Ω…if the speaker load is actually 2 Ω, the amp may overheat and power transistors may fail.)
Jethro Rocker
Ambassador of Live & Loud Action
Diff in output between 80 and 100 is essentially negligible.
67plexi
Ambassador of Amps
Solid state is way different than tube power My Eden WT800C bass amp is 880 watts RMS bridged @ 8 ohms
My ODS #183 build x 4 EL34 if I do the math 120 watts RMS @ 8 ohms puts out more dB way louder
My Ampeg 1970 SVT is brutal 320 watts RMS tube power volume 3 it will knock off framed pitchers off the wall
My ODS #183 build x 4 EL34 if I do the math 120 watts RMS @ 8 ohms puts out more dB way louder
My Ampeg 1970 SVT is brutal 320 watts RMS tube power volume 3 it will knock off framed pitchers off the wall
Clockworkmike
Ambassador of STACKS in WV SHACKS
This is a good read and a good understanding of the differences in impedances and output of Solidstate vs Valve and why we notice sound differences
Long story short it comes down to 2 variables and that's simply the majority of Solidstate amps not having an output transformer to create taps to adjust the Voltage RMS to each output jack. So all voltage remains the same across each jack and the wattage is reduced to each output.
Secondly, Valve amps are designed to distort the signal, which in turn increases volume. Solidstates can obviously make distortion thru JFET and FET signals but by their nature they aren't built to distort, rather they sag the power signal during the output stage, thus causing a volume decrease.
Long story short it comes down to 2 variables and that's simply the majority of Solidstate amps not having an output transformer to create taps to adjust the Voltage RMS to each output jack. So all voltage remains the same across each jack and the wattage is reduced to each output.
Secondly, Valve amps are designed to distort the signal, which in turn increases volume. Solidstates can obviously make distortion thru JFET and FET signals but by their nature they aren't built to distort, rather they sag the power signal during the output stage, thus causing a volume decrease.
