Quad 303power ampfeedsKlipsch Heresy IIspeaker
Used together in 1 real system
Strong match
Quad 303 + Klipsch Heresy II is a strong match — the 303 has the headroom to drive the Heresy II cleanly.
What the compatibility check found
Power Matching
Pass✓ Amplifier power (50W @ 8Ω) is well-matched for speaker sensitivity (97dB)
Impedance Matching
Couldn't verifyInsufficient specification data to verify impedance compatibility
Add impedance specifications to verify compatibility
Power and headroom
- Headroom
- 19.4 dB
- in reserve
- Peak SPL
- 104.4 dB
- at the seat
- Power used
- 0.57 W
- at target level
- Of amp output
- 1.1%
- capacity used
Estimated at an 85 dB listening level, 3 m from the speakers.