Fisher 400 TubeamplifierfeedsKlipsch Forte IVspeaker
Used together in 1 real system
Strong match
Fisher 400 Tube + Klipsch Forte IV is a strong match — the 400 Tube has the headroom to drive the Forte IV cleanly.
What the compatibility check found
Impedance Matching
Pass✓ Amplifier can safely drive 8Ω speakers
Power Matching
Pass✓ Amplifier power (25W @ 8Ω) is well-matched for speaker sensitivity (99dB)
Physical Connectivity
Couldn't verify
Power and headroom
- Headroom
- 18.4 dB
- in reserve
- Peak SPL
- 103.4 dB
- at the seat
- Power used
- 0.36 W
- at target level
- Of amp output
- 1.4%
- capacity used
Estimated at an 85 dB listening level, 3 m from the speakers.