Question for glass on jbl 600.1 at 1 ohm


Bronze Member
Username: Thumprms


Post Number: 49
Registered: May-04
if the jbl puts out 300 rms at 4 ohms and 600 rms at 2 ohms, would it put out 900 rms at 1 ohm?

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 5319
Registered: Dec-03
In an ideal world, when you halve the impedance (load) you double the power, so it would be 1200 watts.
Now, you lose some to heat, inefficiency etc so really power never doubles.
With the JBL, being a class D amp, output is regulated at 1 ohm, so the 600.1 puts out the same power at 1 ohm as at 2.

short answer, it's 600 watts at 1 ohm as well as at 2 ohms.
The same holds true for the 150.1, 300.1, and 1200.1, where power is the same at both loads.
This is a feature of the BP series mono amps.

Bronze Member
Username: Thumprms


Post Number: 50
Registered: May-04
thanks glass
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