Hikvision 500W 2-Zone Network Amplifier DS-QAZ1A500G1-VB2

The DS-QAZ1A500G1-VB2 gives you 500 W of amplification split across two independently controlled zones, and it lives on the network rather than at the end of a speaker run from a control room. That is the point of the model: one chassis, two areas addressed separately, and management that travels over the same IP infrastructure your switches already carry.

For a contractor pricing a public-address job in Egypt, an amplifier is where the design becomes a budget. It sets how many areas you can address and how much speaker load each output will carry. Speaker count, cable runs and the number of amplifiers in the quote all follow from this one decision.

Where it fits

Zones, not watts, are what the client actually experiences. Being able to page the warehouse without paging the showroom, or run background audio in a retail area while the loading bay stays silent, is worth more on handover day than headroom nobody can hear. Two zones covers a large share of real sites: a factory floor and its offices, a school block and its yard.

Because it is a network amplifier, it sits on the same infrastructure as the rest of the security system, and that matters for how announcements start. On a conventional system somebody has to walk to a microphone; on an IP system the announcement can be scheduled, sent from a management client, or driven by an event on the network — the difference between a paging system people use and one that gets switched off after a month.

The honest constraint is the number on the front: 500 W is a total, not 500 W per zone. Split it wrongly and one zone runs out of amplifier while the other coasts. A 500 W amplifier feeding the wrong zone split is a more expensive mistake than a smaller one feeding the right split.

Before you order — three things to confirm

• Speaker load per zone against the 500 W total. Add up the tapped power of every speaker on each zone, keep sensible margin, and check both zones together against the total rather than against 500 W each — before the order, not after the speakers are on the wall.
• How two zones map to the client’s actual areas. Walk the site and mark which areas must be addressable separately and which can share. If the honest answer is three or four, this model is the wrong size and a larger amplifier or a second unit belongs in the quote.
• What will drive the announcements. Scheduled playback, live paging from an operator position, or triggering from the VMS on an event — each implies different software, licensing and commissioning time. Confirm the configuration and output arrangement with us before you commit the design.

Technical specifications

• Manufacturer: Hikvision
• Model: DS-QAZ1A500G1-VB2
• Rated Power: 500 W
• Frequency Response: 100 V COM/70 V COM: 50~20000 Hz（±3 dB）; RCA Out/3.5 mm out: 50~20000 Hz（±1 dB）
• THD and SNR: THD: ＜0.5%@1 kHz，1/3 rated power; SNR: >90 dB
• Alarm: 1 EVAC alarm input; 1 alarm input; 1 alarm output, when the output device connected to the alarm output is normally closed, connect: 1A GND; when the output device…
• Ethernet Interface: 1 RJ45 10 M/100 M/1000 M adaptive Ethernet port
• Local Storage: Built-in 4 GB EMMC (Audio file storage is 1 GB.)
• Audio In: MIC 1~4: -28 dBV, 4.7 kΩ, unbalance, 6.35 mm jack; RCA in 1~4: 0 dBV, 4.7 kΩ, unbalance, RCA pin jack; USB 2.0 × 1; Bluetooth; Note: The 6.35 mm jack cannot be wired…
• Audio Out: Constant Voltage Output × 2: 100 V COM & 70 V COM. A single channel supports up to 250 W output.; RCA out 1-2: 0 dBV, unbalance, RCA pin jack; 3.5 mm out 1-2: 0 dBV,…
• LED Indicator: Power Indicator (solid white): the device is normal working.; USB flash drive indicator (solid white): the device is in USB flash drive mode.; Bluetooth Indicator…
• Volume Knob: Total Volume Knob × 1，; MIC Input Volume Knob × 4，; RCA Input Volume Knob × 4，; Output Channel Volume Knob × 2，; Treble Volume Knob × 1，; Bass Volume Knob × 1
• USB: USB 2.0. File format: FAT32 and EXFAT, maximum capacity: 256 GB.; FAT32 formatted USB drive: maximum capacity of a single partition is 32 GB; EXFAT formatted USB…
• Power: 100 to 240 VAC
• Material: Front panel: PC+ABS, top and bottom covers: SGCC
• Dimension: 495.97 mm × 90.89 mm × 473.18 mm (19.53″ × 3.58″ × 18.63″)
• Color: Black
• Bluetooth: Bluetooth 5.0，10 m
• Operating Temperature: -10 °C to 50 °C (-14 °F to 122 °F )
• Operating Humidity: ＜90% (No condensation)
• Power Consumption: Standby Consumption: 45 W; Annual Average Consumption: Max. Working Consumption: 110 W (based on the average playing time)
• Environment: This device can only be safely used in the region below 2,000 meters above the sea level

Figures from Hikvision’s published datasheet. We confirm the revision in stock when we quote.

Compatibility

The unit is deployed and managed over an IP network as part of the Hikvision public-address range, alongside the rest of a Hikvision installation. Speaker types, output arrangement and software and firmware versions for your project should be confirmed against the manufacturer datasheet — full datasheet available on request; call 16454.

What’s in the box

The DS-QAZ1A500G1-VB2 amplifier unit with the standard accessories and documentation as packed by Hikvision. Speakers, microphones, cabling and mounting hardware are not included and must be specified separately. For exact pack contents, the full manufacturer datasheet is available on request — call 16454.

Common questions

Is the 500 W per zone or in total?
In total. The 500 W is shared between the two zones, so the load on each zone has to be worked out against the combined figure before you order.

Can announcements be triggered automatically instead of by an operator?
It is a network amplifier, so it is intended to be driven over IP rather than only from a local microphone. Confirm the triggering options for your design — scheduled, live paging or event-driven — with us on 16454.

What if the site needs more than two zones?
Then a larger model or additional amplifiers belong in the design. Send us the area list and the speaker load and we will confirm what the site needs.

Genuine Hikvision from the authorized Hikvision agent in Egypt, official manufacturer warranty of 1 to 5 years depending on the product, delivery across Egypt, and professional installation in Cairo & Giza, priced after a site assessment. Prices are given on request — press Get a Quote on this page or call 16454.