The VLZ-6600A central amplifier from the VARIO-LINE series is a robust and flexible public address controller designed to manage up to 6 speaker lines and provide All-Call functionality. Ideal for complex PA and emergency paging systems, it supports precise zone control and high-performance audio distribution.

When paired with compatible remote paging consoles like the VLM-100A, VLM-106, or VLM-206 (with control over the DM-10 digital text module), full digital remote management of speaker circuits is possible. Inputs 1–3 can be toggled between MIC and LINE operation and are equipped with individual tone controls (bass/treble) and adjustable priority logic.

All MIC inputs are electronically balanced with gain controls and switchable phantom power. MIC 1 also features an RJ-45 port for a PTT microphone. LINE inputs are provided via RCA jacks. Built-in tones like gong, siren, and telephone paging signals can be adjusted at the front panel.

Expansion modules are available, including:
– FD-21 for amplifier monitoring
– FM-30 for fault relay signaling (fan/fuse failures)
– FS-40 for anti-feedback processing

With 920 W program power or 600 W RMS, the amplifier can drive 100 V, 70 V, or low-impedance 4-ohm speaker loads. AMP-IN and PRE-OUT connectors enable cascading with additional amplifiers. The unit operates on 230 V AC or 24 V DC (for emergency power). An additional slot allows for optional audio module integration.

Technical Data:

– Model: VLZ-6600A
– Output Power: 920 W (program) / 600 W (RMS)
– Frequency Response: 40 Hz – 20,000 Hz (–3 dB)
– Signal-to-Noise Ratio: MIC > 70 dB, LINE

80 dB

– THD @ 1 kHz: < 1 %
– Inputs:
– MIC/LINE: electronically balanced combo jacks (XLR/jack)
– MIC 1 also via RJ-45 (for PTT microphone)
– MIC Sensitivity: –50 dB (2.45 mV), LINE: –10 dB (245 mV)
– Speaker Outputs: 100 V / 70 V / 4 Ohms
– Auxiliary I/O:
– AMP-IN: +4 dB (1.23 V)
– PRE-OUT: 0 dBu (775 mV)
– Tones:
– 2-/4-tone gong, siren (continuous or rising/falling)
– Power Supply:
– AC 230 V (50/60 Hz)
– DC 24 V (emergency)
– Dimensions (W x H x D): 483 x 133 x 350 mm (3 RU)
– Weight: 22 kg

Key Features:

– Control of up to 6 speaker zones plus All-Call
– Remote operation via VLM-100A / VLM-106 / VLM-206
– Built-in tone generator, siren, and telephone paging
– Expandable via monitoring and feedback modules
– AC and DC power supply for fail-safe operation
– Audio slot for optional playback modules