TiFi Hestia Main Spinorama measurement graphs. About Spinorama methodology read here.
Directivity
Largest angle where average SPL is still higher than - 6 dB compared to On-Axis in frequency range of 1 - 10 kHz.
- Horizontal directivity: -/+ 60 degrees.
- Vertical directivity: down -50, up +60 degrees.
On-Axis *
On-Axis Tolerance: +0.7 dB, -0.8 dB
Predicted In Room
Predicted In Room Tolerance: +0.8 dB, -1.5 dB
Listening Spot Graphs
Directivity
Horizontal Reflections *
Vertical Reflections
Comments
Close to the wall placement may enhance bass response compared to free space measurements. Final sound profile depends on your AV receiver adjustment process and settings.
Measurements
Spinorama is measured in a room one meter distance, with sound level, 1W (2.83V), with a 3.8 ms gating window, which allows the direct sound of the speaker to be measured but reduces measurement resolution at lower frequencies.
Lower frequencies are measured on-axis, 2m away, in an open room using the Ground Plane method, with sound level normalized to 1m, 1W (2.83V) for an open room.
The frequency response graphs are merged based on the average sound frequencies on the Spinorama axis and the Ground plane axis in the range of 300 - 700 Hz, forming a unified graph. Spinorama angle graphs are replaced with a corrected graph below 300 Hz. Angle corrections are made using a diffraction model based on the dimensions of the speaker and loudspeaker, normalized to the actual Spinorama angle measurement result at 300 Hz.
After Spinorama calculations, the graphs are rounded to 1/6 dB.
The measurements should be considered preliminary. The small peaks and differences in the graphs +/- 2 dB are not reliable, but the overall shape of the graphs and the characteristics of the speakers are described accurately with the initial measurements.