The short answer: make the two options as close in playback loudness as practical, keep the same track, seat and switching path, then repeat short comparisons in both orders. Even a small level difference can make the louder option seem clearer or more impressive.
Professional listening tests use tighter controls than a home audition, but the principle is transferable. The Audio Engineering Society describes loudness as perceived strength and explains level matching as a way to compare content more consistently. ITU-R BS.1116 also treats references, excerpts and listening conditions as explicit parts of a test.
Why louder can be mistaken for better
Perceived loudness depends on level, spectrum and duration, so matching a single peak reading is not always enough. For domestic comparisons, the goal is not laboratory proof; it is to remove an obvious advantage before judging tone, imaging or detail.
If one amplifier, DAC or source has a higher output, the same volume-knob position does not create the same acoustic level. Match at the listening seat with a repeatable signal or careful playback measurement, then leave the controls unchanged.
Choose a stable comparison chain
Use the same loudspeakers or headphones, music file, input and listening position. Disable optional processing that is not part of the question, and confirm that neither device is clipping. Fast switching helps memory, but only when the switching method is electrically appropriate.
If reconnecting cables takes minutes, use shorter excerpts and write observations immediately. Never hot-swap speaker wiring or tube-amplifier outputs unless the manufacturer explicitly permits it.
A practical matching sequence
- Warm and configure both devices according to their manuals.
- Select a steady midrange-rich passage or appropriate test signal.
- Measure or carefully match level at the normal listening position.
- Replay a familiar 20-to-40-second excerpt on option A and option B.
- Reverse the order and repeat without changing seat or level.
- Write one or two specific observations before the next track.
- If differences disappear after matching, record that result honestly.
Separate preference from proof
A controlled home comparison can reveal a preference under those conditions. It cannot prove that every listener, room or recording will produce the same result. Avoid expanding one evening's observation into a universal product claim.
Use descriptions such as centre image moved forward, bass note decay was easier to follow, or no repeatable difference heard. Those statements are more useful than a ranking without conditions.
Know when the comparison is no longer fair
Stop if one device enters protection, the loudspeaker position changes, the source switches masters, or fatigue makes observations vague. A break is part of good testing, not a failure.
When comparing speakers, room placement may need to be optimised for each pair. That makes a direct instant switch less controlled, so document each placement and treat the result as two complete setups rather than isolated boxes.
Practical checklist
- The comparison question is written in one sentence.
- The same source file, seat and transducers are used.
- Optional EQ and processing settings are documented.
- Playback levels are matched as closely as practical.
- Short excerpts are repeated in both orders.
- No unsafe hot-swapping occurs.
- Notes distinguish preference from a universal claim.
Troubleshooting guide
| What you notice | Check first | Next step |
|---|---|---|
| The louder option always wins | Actual acoustic level at the seat | Rematch level and repeat in reverse order |
| Difference changes with every switch | Source synchronisation, seat position and fatigue | Shorten the test and take a quiet break |
| One device sounds strained | Clipping, gain setting and load compatibility | Stop and correct the operating condition |
| No repeatable difference remains | Whether the original result was level-driven | Record no reliable difference under the tested conditions |
Continue your Miu Audio research
Apply the same discipline when auditioning the confirmed Miu Audio LS3/5a: establish placement first, keep level sensible and describe repeatable observations instead of chasing a quick dramatic effect.
- Explore the confirmed Miu Audio LS3/5a
- Browse Audiophile Hi-Fi guides
- Plan a Springvale showroom visit
Frequently asked questions
How closely should audio levels be matched?
As closely as your safe measurement method allows. The aim is to remove a clear loudness advantage, not to claim laboratory certainty from a domestic setup.
Can I match levels by volume-knob position?
No. Different source voltages, gain structures and control tapers mean the same clock position can produce different output levels.
Do I need blind testing at home?
Blind methods can reduce expectation effects, but a careful sighted comparison with matched level, fixed variables and repeatable notes is still more useful than an uncontrolled switch.
What if I hear no difference after level matching?
That is a valid result for the tested material and conditions. Do not force a preference; consider usability, compatibility, reliability and cost as separate decisions.
Sources
- Loudness Basics, Audio Engineering Society, accessed 30 July 2026.
- Methods for the subjective assessment of small impairments in audio systems, International Telecommunication Union, accessed 30 July 2026.
- Miu Audio Showroom, Miu Audio, accessed 30 July 2026.
Domestic comparisons are not formal laboratory tests. Keep equipment within manufacturer limits, avoid unsafe switching and describe conclusions only for the system, room and material actually assessed.