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Usher Dancer Mini One
p2 Sound quality
p3 Conclusion
p4 Measured performance
All Pages

test_equipment

 

MEASURED PERFORMANCE

Our third-octave frequency response analysis shows a smooth and even characteristic typical of Usher. There are virtually no dips or undulations across the audio band and the dip at 180Hz is attributable to a vertical mode in our measuring room. Forward output from the bass unit extends down to 50Hz and below this the port takes over, extending coverage right down to 25Hz, into subsonics.

 

Points to note here are that a frequency response as smooth as this suggests very low coloration, and this property was borne out in our 200mS decay analysis. There is a steady lift in treble output with rising frequency, enough to result in a light balance and, finally and not shown, the diamond coated tweeter has a peak at 20kHz that subjectively may be relevant.

 

Sensitivity was low at 85dB SPL from one nominal watt (2.8V) of pink noise. The reason for this is that Usher have used a high DCR bass unit measuring 7.2 Ohms, where most are 4 Ohms these days. Consequently, overall impedance is high, the reactive component adding as a vector sum to produce an overall impedance value of 10 Ohms no less. The  Dancer Mini-One needs quite a lot of power to go loud as a result, a minimum of 50 Watts; as floorstanders go it is not especially sensitive.

 

The Dancer Mini-One is a technically accurate loudspeaker enhanced by smooth treble lift, to give obvious treble sheen, perhaps to emphasise the Diamond tweeter. It is engineered well and cannot fail to give good sound quality. NK

 

 

FREQUENCY RESPONSE (what it means)

usher-dancer-mini-one_frsit

Green - drive unit; Red - port

 

IMPEDANCE (what it means)

usher-dancer-mini-one-z-sit

 

DECAY SPECTRUM 200mS (what it means)

usher-mini-dancer-1-decaygr

 

DECAY MAP 200mS (what it means)

usher-mini-danncer-1-decay



 

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