Yamaha A-S501amplifierfeedsKEF Q150speaker
Strong match
Yamaha A-S501 + KEF Q150 is a strong match — the A-S501 has the headroom to drive the Q150 cleanly.
What the compatibility check found
Impedance Matching
Pass✓ Amplifier can safely drive 8Ω speakers
Power Matching
Pass✓ Amplifier power (85W @ 8Ω) is well-matched for speaker sensitivity (86dB)
Physical Connectivity
Couldn't verify
Power and headroom
- Headroom
- 10.8 dB
- in reserve
- Peak SPL
- 95.8 dB
- at the seat
- Power used
- 7.15 W
- at target level
- Of amp output
- 8.4%
- capacity used
Estimated at an 85 dB listening level, 3 m from the speakers.