L-Acoustics Syva, User Manual

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Maintenance
Listening test
Enclosure Preset Usable bandwidth
Syva [SYVA] 87 Hz - 20 kHz
Syva Low [SYVA LOW_100] 40 Hz - 130 Hz
Syva Sub [SYVA SUB_100] 27 Hz - 120 Hz
Procedure
1. Load the preset on an LA4X / LA8 / LA12X amplified controller.
2.
Connect a sinus generator to the amplified controller.
Risk of hearing damage
Set a low sound level to start and use ear protection to adjust before testing.
3. Scan the bandwidth focusing on the usable range.
The sound should remain pure and free of unwanted noise.
Troubleshooting for HF speakers
One or more HF loudspeaker produces high-frequency harmonic distortions, strange vibrations or weak sound.
Possible causes
— There are foreign particles on the air gap.
— The screws used for reassembly are too loose.
— The diaphragm is damaged.
— The speaker and the waveguide are not aligned.
Procedure
1. Remove the trapdoor and check the HF speakers.
For each speaker, make sure the driver exit and the waveguide mouth fit together.
The speaker plate must be level with the cabinet.
2.
Perform the HF speaker disassembly procedure.
3. Perform the diaphragm disassembly procedure.
4.
Visually inspect the diaphragm and the voice coil.
If any damage is visible, replace the diaphragm.
5.
Clean the air gap thoroughly.
6. Perform the reassembly procedure.
Pay close attention to the position of the diaphragm.
Apply the recommended torque.
7.
Repeat the listening test.
If the problem persists, replace the loudspeaker.
Syva user manual (EN) version 1.0 38