I see some new folks asking about Revel speakers. Thought I'd post some info I used when I taught classes and trained my assistants.
Here are things I listen for when evaluating speakers, studio monitors or big PA systems.
1. Spectral Balance/Neutrality: frequency response (20 Hz – 20 kHz) bass, midrange, treble
2. Coloration: flat response, avoid boxy, boom, honky midrange, metallic or hard treble
3. Stereo Imaging: phantom center image, localization, depth, soundstage
4. Definition/clarity: fine details, balance of instrumentation
5. Transient response: drums, percussion, piano, tightness, overhang
6. Ambience and openness: reproduction of acoustic space, reverberation, sense of "air"
7. Dynamic Range: micro dynamics and macro dynamics, full dynamic range and good sound at all
8. Driver blending: crossover, waveguides, transient blend, matched drivers, woofer should not lag
tweeter, dynamic balance (driver can't keep up), coherence (sounds real and whole, not hearing individual
9. Distortion of any type is not acceptable. Slow sign wave sweeps can reveal cabinet resonances or drivers rubbing.
Equilateral triangle: 60 degree toe in angles. Distance between speakers is equal to distance from speaker to listening position. Distance to listening position from center between speakers is .866 times the distance from the speaker to the listener.
Distance between speakers (center of tweeter) / Distance from center to listener
8' / 6.9'
10' / 8.6'
12' / 10.4'
15' / 13'
Last edited by Rex Anderson; 08-02-2018 at 06:17 AM.