The four models within this series (PRO4.0, PRO7.0, PRO9.0, PRO18.0) offer a range

from 400 watts to 1700 watts at 8Ω stereo. Each channel works at 2Ω to satisfy all

requirements.

PRO series adopts Audiocenter latest Class H+ circuitry to eliminate the Class H cross

switching distortion.

PRO series has very clear and clean sound and high damping factor. This makes PRO

series suitable for any kind of application, from high power loudspeakers to critical

monitoring where very high requirements are mandatory. It can be widely used in fixed

installation and touring performance such as bar, nightclub, multi-functional hall,

museum, religious venue, commerce site, lecture hall, wedding ceremony, etc.

Mid-high level amplifier with remarkable performance and

reliability we are famous for.

PRO Series Power Amplifier

AUDIOCENTER INTERNATIONAL

Capacitor

Transistor

Toroidal

Transformer

XLR and Speaker

connector

Switch Circuit

Breaker

Customized

big Capacitor

A-Guard is Audiocenter comprehensive protection system which includes optimized limiter circuit. Unlike other solutions which depend on separate

circuits to address different problems, A-Guard was developed as centralized solution where all protection requirements work together in perfect

harmony. A-Guard is only applied when it’s necessary to protect the amplifier. This is the reason why PRO amplifiers are able to sustain full power

output even under complex capacitive loads.

A-Guard Protection System

The smart overheat management of PRO series adopts unique circuitry to monitor the amplifier’s temperature in real time. When the safe operation

of the amplifier is compromised, the output power is reduced but not shut down, which ensures the system can work normally in high temperature

environment.

Smart Overheat Management

PRO series adopts Audiocenter latest Class H+ circuit to eliminate the Class H cross switching distortion. The result is the same low distortion as

Class AB. All PRO amplifiers have less than 0.05%THD at 16KHz and the sound is so clean and natural.

Class H+ Circuit Design Eliminates Cross Switching Distortion

FEATURES

CORE COMPONENTS

Output power

(1kHz, THD+N =1%)

A-Guard Protection System

Working mode

High Pass

Low Pass

Low Cut

LOW FREQ ENHANCED

Input Connectors

Output Connectors

Input Impedance

Maximum input voltage

Sensitivity

Frequency Response

(1W 8Ω stereo)

Crosstalk(1kHz,

Rated power 8Ω,A weighted)

S/N Ratio

(Rated power 8Ω, A weighted)

Damping Factor (1kHz&8Ω)

Intermodulation Distortion

(60Hz:7kHz=4:1,half power)

THD+N

(1kHz,8Ω half power,A weighted)

Output Circuitry

Power Supply

Power Consumption

(1/8 output power 4Ω)

Rack Space

Cooling

Dimension (W×H×D)

Net Weight

2×700W @8Ω stereo

2×1100W @4Ω stereo

2×1400W @2Ω stereo

2200W @8Ω bridge

2800W @4Ω bridge

DC protection / Short circuit protection /

Smart overheat management / Overheat

protection / Input overload protection /

Output overload protection / Soft startup

protection / Limiter protection

Stereo/Parallel/Bridge

/

/

/

/

Male XLR & Female XLR

Speakon 4Pin

Balanced ≥20kΩ / Unbalanced ≥10kΩ

≥20dBu

0.775V / 32dB / 26dB

20Hz-20kHz(±0.5dB)

≥65dB

≥108dB

≥500

≤0.05%

≤0.05%

Class H+

110V~/230V~(±10%,50/60Hz)

782W

2U

Back to front venting, mandatory cooling

483×88×451mm

22.5kg

Output power

(1kHz, THD+N =1%)

A-Guard Protection System

Working mode

High Pass

Low Pass

Low Cut

LOW FREQ ENHANCED

Input Connectors

Output Connectors

Input Impedance

Maximum input voltage

Sensitivity

Frequency Response

(1W 8Ω stereo)

Crosstalk(1kHz,

Rated power 8Ω,A weighted)

S/N Ratio

(Rated power 8Ω, A weighted)

Damping Factor (1kHz&8Ω)

Intermodulation Distortion

(60Hz:7kHz=4:1,half power)

THD+N

(1kHz,8Ω half power,A weighted)

Output Circuitry

Power Supply

Power Consumption

(1/8 output power 4Ω)

Rack Space

Cooling

Dimension (W×H×D)

Net Weight

2×400W @8Ω stereo

2×600W @4Ω stereo

2×800W @2Ω stereo

1200W @8Ω bridge

1600W @4Ω bridge

DC protection / Short circuit protection /

Smart overheat management / Overheat

protection / Input overload protection /

Output overload protection / Soft startup

protection / Limiter protection

Stereo/Parallel/Bridge

/

/

/

/

Male XLR & Female XLR

Speakon 4Pin

Balanced ≥20kΩ / Unbalanced ≥10kΩ

≥20dBu

0.775V / 32dB / 26dB

20Hz-20kHz(±0.5dB)

≥65dB

≥108dB

≥500

≤0.05%

≤0.05%

Class H+

110V~/230V~(±10%,50/60Hz)

415W

2U

Back to front venting, mandatory cooling

483×88×451mm

18.0kg

PRO4.0 PRO7.0

Output power

(1kHz, THD+N =1%)

A-Guard Protection System

Working mode

High Pass

Low Pass

Low Cut

LOW FREQ ENHANCED

Input Connectors

Output Connectors

Input Impedance

Maximum input voltage

Sensitivity

Frequency Response

(1W 8Ω stereo)

Crosstalk(1kHz,

Rated power 8Ω,A weighted)

S/N Ratio

(Rated power 8Ω, A weighted)

Damping Factor (1kHz&8Ω)

Intermodulation Distortion

(60Hz:7kHz=4:1,half power)

THD+N

(1kHz,8Ω half power,A weighted)

Output Circuitry

Power Supply

Power Consumption

(1/8 output power 4Ω)

Rack Space

Cooling

Dimension (W×H×D)

Net Weight

2×1700W @8Ω stereo

2×2500W @4Ω stereo

2×3000W @2Ω stereo

5000W @8Ω bridge

6000W @4Ω bridge

DC protection / Short circuit protection /

Smart overheat management / Overheat

protection / Input overload protection /

Output overload protection / Soft startup

protection / Limiter protection

Stereo/Parallel/Bridge

160Hz，-3dB

160Hz，-3dB

30Hz

100Hz

Female XLR+TRS

Speakon 4Pin + binding posts

Balanced ≥20kΩ / Unbalanced ≥10kΩ

≥20dBu

0.775V / 36dB / 32dB

20Hz-20kHz(±0.5dB)

≥65dB

≥108dB

≥650

≤0.05%

≤0.05%

Class H+

110V~/230V~(±10%,50/60Hz)

1450W

3U

Back to front venting, mandatory cooling

483×132×510mm

39.0kg

Output power

(1kHz, THD+N =1%)

A-Guard Protection System

Working mode

High Pass

Low Pass

Low Cut

LOW FREQ ENHANCED

Input Connectors

Output Connectors

Input Impedance

Maximum input voltage

Sensitivity

Frequency Response

(1W 8Ω stereo)

Crosstalk(1kHz,

Rated power 8Ω,A weighted)

S/N Ratio

(Rated power 8Ω, A weighted)

Damping Factor (1kHz&8Ω)

Intermodulation Distortion

(60Hz:7kHz=4:1,half power)

THD+N

(1kHz,8Ω half power,A weighted)

Output Circuitry

Power Supply

Power Consumption

(1/8 output power 4Ω)

Rack Space

Cooling

Dimension (W×H×D)

Net Weight

2×1000W @8Ω stereo

2×1500W @4Ω stereo

2×1950W @2Ω stereo

3000W @8Ω bridge

3900W @4Ω bridge

DC protection / Short circuit protection /

Smart overheat management / Overheat

protection / Input overload protection /

Output overload protection / Soft startup

protection / Limiter protection

Stereo/Parallel/Bridge

160Hz，-3dB

160Hz，-3dB

30Hz

100Hz

Female XLR+TRS

Speakon 4Pin + binding posts

Balanced ≥20kΩ / Unbalanced ≥10kΩ

≥20dBu

0.775V / 36dB / 32dB

20Hz-20kHz(±0.5dB)

≥65dB

≥108dB

≥650

≤0.05%

≤0.05%

Class H+

110V~/230V~(±10%,50/60Hz)

1050W

3U

Back to front venting, mandatory cooling

483×132×510mm

34.0kg

PRO9.0 PRO18.0

All content subject to change without notice. All rights reserved. AC- PRO- 202401

SPECIFICATIONS

PRO Series Amplifier Specifications

≥20kΩ

≥10kΩ

≥20dBu

≥65dB

≥108dB

≥500

110V~/230V~(±10%,50/60Hz)

Class H+

415W 782W 1050W 1450W

2U 3U

≤0.05%

≤0.05%

≥650

20Hz-20kHz(±0.5dB)

0.775V / 32dB / 26dB 0.775V / 36dB / 32dB

483×88×451mm

18.0kg 22.5kg 34.0kg 39.0kg

483×132×510mm

1600W

1200W

2×800W

2×600W

2×400W

2800W

2200W

2×1400W

2×1100W

2×700W

3900W

3000W

2×1950W

2×1500W

2×1000W

6000W

5000W

2×3000W

2×2500W

2×1700W

PRO4.0 PRO7.0 PRO9.0 PRO18.0

Back to front venting, mandatory cooling

Crosstalk

(1kHz, Rated power 8ΩA weighted )

S/N Ratio(Rated power 8Ω, A weighted)

Damping Factor(1kHz & 8Ω)

Frequency Response(1W 8Ω stereo)

Sensitivity

Connectors

Input

Output

Crossover

LOW FREQ ENHANCED

High Pass

Low Pass

Low Cut

Maximum input voltage

Input Impedance

Balanced

Unbalanced

Output power

(1kHz,

THD+N =1%)

A-Guard Protection System DC protection，Short circuit protection，Smart overheat management，Overheat protection，

Input overload protection，Output overload protection，Soft startup protection，Limiter protection

4Ω bridge

8Ω bridge

2Ω stereo

4Ω stereo

8Ω stereo

Intermodulation Distortion

(60Hz:7kHz=4:1,half power)

THD+N

(1kHz，8Ω half power A weighted)

Power Supply

Output Circuitry

Power Consumption

(1/8 output power 4Ω )

Rack Space

Cooling

Dimensions(W×H×D)

Net Weight

Male XLR & Female XLR

Speakon 4Pin

/

/

/

/

Female XLR+TRS

100Hz

30Hz

160Hz，-3dB

160Hz，-3dB

Working mode Stereo/Parallel/Bridge

Speakon 4Pin + binding posts

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