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GPM series

High Power / DSP Amps for Subwoofers

models in the series
- GPM-1000
- GPM-500
- GPM-250
- GPM-150

 

Features of the series

    1. Mono-channel, Class D power amplifier for subwoofer integration
    2. Built-in DSP for presetting 4 groups of
      • volume
      • crossover frequency and slope
      • graphic EQ
      • phase setting
      • mode selection (sub or LFE)
      • subsonic filter frequency
    3. Remote setup and control
    4. Switching power supply 
    5. Low standby consumption (<0.5W)
    6. Power on-off by auto-detection (green function) with defeat option
    7. Dual voltage on users’ selection
    8. Detachable power cord for various AC plugs
    9. Compact size and light-weight for easy integration & assembly
    10. LFE input for corresponding Dolby acoustic effect application
    11. Overload & shortage protection
    12. External LCM display (optional)

The AIM™ GPM series, containing 4 models in its line rated from 150w to 1000w, is plate type of mono-channel amplifier created for integrating with subwoofer speaker to provide powerful subsonic sound in acoustic system.

All the power amplifiers in the GPM series are class-D and driven by high efficient switching power supply (SMSP), which makes these amps compact and weight much less than the transformer amplifiers, thus enables the speaker system be in small size yet deliver more output power.
The GPM amps are featured with modern DSP function for presetting, storing and quick retrieving of the amplifiers’ main parameters such as crossover frequency and slope, EQ, phase, volume, for the optimum acoustic refinement.
The LFE input allows the subwoofer speaker to be the dedicated LFE channel in a Dolby effect system.

Being ECO friendly all the GPM amplifiers are with power saving function, which turns the amplifiers into standby automatically when audio signal is off.

In addition, the overload / shortage protection

 

 

Function

IO function

GPM-1000

GPM-500

GPM-250

GPM-150

Audio input

Line

RCA

RCA

RCA

RCA

High-level (from speaker)

no

no

Binding post

Binding post

Balance

Canon XLR

Canon XLR

no

no

Power

AC plug

ICE socket

ICE socket

ICE socket

ICE socket

fuse holder

embedded

embedded

embedded

embedded

110 / 220 voltage selection

manual

manual

manual

manual

master switch

yes

yes

yes

yes

Specification

 

GPM-1000

GPM-500

GPM-250

GPM-150

Max Power

THD @ 1%

W

1000

500

250

150

THD+N

output @ 10W

%

< 0.2

< 0.2

< 0.2

< 0.2

Input sensitivity

Line-in; volume @ max

mV

200

200

200

200

High-level; volume @ max

V

---

---

2.5

2.5

Frequency response

LFE Input

Hz

2K

2K

2K

2K

Low-pass filter range@ 1W

crossover @ max

Hz

160

160

160

160

crossover @ min

Hz

40

40

40

40

Low-Pass filter slope@ 1W

crossover @ max

Hz

12 ~ 36

12 ~ 36

12 ~ 36

12 ~ 36

Subsonic filter frequency

@ 1W

Hz

16 ~ 40

16 ~ 40

16 ~ 40

16 ~ 40

S/N ratio

@ rated power

dB

> 94

> 100

> 100

> 88

Auto-off time

min

5 ~ 30

5 ~ 30

5 ~ 30

5 ~ 30

Auto-on level

mV

3 ~ 5

3 ~ 5

3 ~ 5

3 ~ 5

Power consumption

standby, no-signal

W

0.5

0.5

0.5

0.5

power-on, no signal

W

28

20

20

20

rated power

W

1400

720

350

210






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