S 2600 - JBL Audio User Guide / Operation Manual. Page 7

Read JBL S 2600 User Guide / Operation Manual online

6
TYPICAL SYSTEM
PERFORMANCE:
Figure 5 shows the on-axis sine
wave response of the S2600 sys-
tem taken in a 2
π
environment
(adjacent to one wall), with contri-
butions from low and high frequen-
cy elements indicated separately.
The dashed line represents the
effect of 4
π
(free space) loading.
The overall response does not vary
by more than ±2.5dB from 75Hz to
13kHz. The impedance of the sys-
tem is also shown in this graph.
20
100
1K
70dB
10
31.6
3.16
80dB
90dB
100dB
10K
20k
log frequency – Hz
GROUND PLANE
4
π
2
π
sound pressure level
IMPEDANCE (OHMS)
ANECHOIC
4
π
20
100
1K
60dB
70dB
80dB
90dB
100dB
10K
20k
sound pressure level
2nd Harmonic (+20dB)
3rd Harmonic (+20dB)
Figure 5. S2600 Frequency Response & Impedence
Figure 6. S2600 2nd & 3rd Harmonic Distortion
Figure 6 shows second and
third harmonic distortion for the
S2600 system at a level of 96dB
SPL measured at a distance of 
1 meter. The distortion curves have
been raised 20dB for ease in read-
ing. Under these measurement
considerations the low frequency
distortion remains well under 1%.
High frequency distortion is no
greater than 2% out to 8.5kHz.
Page of 8
Display

Click on the first or last page to see other S 2600 service manuals if exist.