The recordings used during a speaker audition are not interchangeable. The choice of material determines what aspects of the speaker’s performance are revealed and what remains hidden. Using the wrong recordings — or using unfamiliar ones — produces an audition that tells you more about the recording than about the speaker. Choosing deliberately and systematically reveals far more.
The most important criterion for audition material is familiarity. You should know the recordings you use extremely well — well enough to have a detailed internal reference for how they should sound. A recording you have heard hundreds of times on multiple systems carries a clear reference in memory. A recording the dealer plays that you have never heard before carries no reference at all. Without a reference, you cannot evaluate the speaker; you can only evaluate the recording.
Beyond familiarity, the material should test specific aspects of performance. For bass extension and control, a recording with well-defined, pitched bass content — a double bass, a cello, a jazz bass in a natural acoustic — reveals the speaker’s low-frequency character more accurately than electronically produced bass, which may be less well-defined in the original and therefore less revealing of the speaker’s resolution.
For midrange accuracy and vocal naturalness, a simply recorded voice — a close-microphone acoustic vocal with minimal processing — is among the most revealing tests available. The human voice is the sound the brain knows most intimately. Colouration, resonances, and frequency response irregularities in the midrange are immediately apparent on voices in ways they are not on complex music.
For imaging and soundstage, a binaural or naturally recorded ensemble — where musicians were placed in an acoustic space and captured with minimal microphone processing — provides the clearest test of the speaker’s ability to reconstruct a three-dimensional image. Multitrack recordings with artificially panned instruments are less reliable for this purpose, as the stereo image is manufactured rather than captured.
For dynamic capability and compression, a large-scale orchestral recording with genuine dynamic range — one that moves from near silence to full orchestral climax — reveals whether the speaker maintains its character at both extremes or compresses and changes character under load.
Bring your own recordings. This is not optional. It is the single most important practical step in ensuring the audition reveals something meaningful.