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AC3801
8 Duty 1 Standby Manual Amplifier Changeover
AC3801 is an amplifier changeover unit supporting 8 duty and 1 standby amplifier (8+1), with manual or automatic switching, cascading, and priority switching for uninterrupted operation. Supports up to 1000W per channel.
Manual (via front panel) or automatic changeover (with AFS-enabled amplifiers)
Priority switching to prevent overload with single unit takeover
Dual input and output switching
Power handling at 1000W per channel
Introduction
AC3801 is a manual amplifier changeover unit that ensures a standby amplifier takes over when a duty amplifier fails. It supports 8 duty amplifiers and 1 standby, with the option to cascade more than 8 duty amplifier units with a simple link cable for larger setups.
With priority changeover and increased input capacity at 1000W per channel, it allows manual switching from the front panel or automatic activation when paired with amplifiers with Auto Fault Sensing (AFS) amplifiers such as the QD2000 Series or QP2000 series. AC3801 is ideal for continuous audio operation for commercial, industrial, and emergency applications.
Packing information
Carton size: 555 (L) x 295 (W) x 95 (H) mm
Gross weight: 2.55 kg
1 unit per carton
Introduction
AC3801 is a manual amplifier changeover unit that ensures a standby amplifier takes over when a duty amplifier fails. It supports 8 duty amplifiers and 1 standby, with the option to cascade more than 8 duty amplifier units with a simple link cable for larger setups.
With priority changeover and increased input capacity at 1000W per channel, it allows manual switching from the front panel or automatic activation when paired with amplifiers with Auto Fault Sensing (AFS) amplifiers such as the QD2000 Series or QP2000 series. AC3801 is ideal for continuous audio operation for commercial, industrial, and emergency applications.
Packing information
Carton size: 555 (L) x 295 (W) x 95 (H) mm
Gross weight: 2.55 kg
1 unit per carton
AC3801
Power Requirements
Operating voltage
24V DC, 0.2A
Power consumption
Standby: 82mW, 3.4 mA Operating: 1.3W, 50 mA
Zone load rating
1000W at 100V line input
No. of amplifier inputs
8 duty, 1 standby (8+1)
Changeover indication
Front panel LED for duty amplifier being changeover
Switching mode
Manual: Via front panel switches
Auto: Remote trigger via AFS-enabled amplifier
Cable connections
Phoenix connectors
Cascade capacity
Unlimited (Recommend 3 units max)
Cable size
Up to 2.5mm sq
Physical Specifications
Dimensions (W x H x D)
482 x 44 x 180 mm
Weight
1.95kg
Note: The specification parameters may be changed, added, or omitted without prior notice. Last updated on 17 Apr 2026.
8 duty amplifiers and 1 standby changeover unit (8+1)
1000W per channel rating
Manual changeover (via front panel) or automatic changeover (with AFS-enabled amplifier)
Priority switching to prevent overload with single unit takeover (higher unit takes precedence)
Dual input and output (I/O) changeover, ideal for matrix systems
Single standby amplifier can support more than 8 duty amplifiers with a simple link cable
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Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Perindustrian Pusat Bandar Puchong,
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong
47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094
Amperes Electronics Sdn Bhd
SSM Registration No: 200001006420 (509025-X)
Your Trusted PA System Manufacturer since 1999
Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Industri Pusat Bandar Puchong
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong 47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094