Frequency Response - This
measurement was taken freestanding in semi-anechoic conditions
at 50cm on the tweeter axis. When the Kensai is placed against
a wall, the additional boundary will gently boost the response
below the baffle step point, producing a very smooth response
over the whole range.
Distortion - This
measurement was taken freestanding in semi-anechoic conditions.
The level was set to 90dBSPL at a distance of 1m.
Curve - This is the Kensai's impedance response,
showing a nominal 6 Ohms. The first two peaks, left to right,
are the port cut-off frequency and the woofer resonance. The dip
between these two peaks is the overall system resonance at 45Hz.
The next peak is the asymetric crossover point at 2.2KHz. Series
resistance in the low-pass filter is <0.1 Ohm, allowing excellent
Alignment - This shows the phase slopes of the
woofer and tweeter. It can be seen that the phase is perfectly
aligned at 2.2KHz as a result of the asymmetric crossover. This
is one of many reasons the Kensai crossover is acoustically 'invisible'.
- This shows the Kensai's off-axis horizontal directivity,
non-normalized. Measured freestanding in semi-anechoic conditions
Spectral Decay - This shows the Kensai's decay
behaviour. Measured freestanding in semi-anechoic conditions.
Note the lack of resonance issues that lesser systems with metal
cone drivers can exhibit.
Decay - This shows the decay of energy in the
Kensai cabinet structure. Measured with a contact microphone attached
to the left side panel. Longest decay mode is ~45ms at 280Hz.
Response - This shows the Kensai's driver polarity
and time domain behaviour. Measured freestanding in semi-anechoic
conditions. It can be seen that both drivers are connected with
positive polarity, and the acoustic offset between both drivers
is very small. This depicts almost ideal behaviour for a Linkwitz
Riley 4th order crossover.