Inter-M DPA-600D, DPA-1200S Brochure

Digital Power Amplifier

DPA Series

DPA-300S / 300D / 300T / 300Q / 600S / 600D / 900S / 1200S

Inter-M, the History of Korea PA AMPLIFIER

Inter-M has supplied commercial amplifier to domestic and overseas market for about 30 years
starting from PA-2500 amplifier in the beginning of business.

Inter-M has concentrated on developing/manufacturing commercial amplifier for a long time and
our excellent ability to develop the world-class amplifier and produce the best are highly
recognized. As a result, we supplied to JBL and YAMAHA which are the major pro-audio
enterprises in overseas in the past. Also, we have provided our amplifier to ASHLY in USA.

Currently, Inter-M has provided diverse amplifiers such as power amplifier, combi-amplifier that
sound source and mixer function are integrated for PA system in domestic and overseas market,
high efficient SR amplifier for installation market, and highly reliable SR amplifier for touring etc.

As keeping pace with the market flow which requires eco-friendly audio system, Inter-M is coming
up with new topology amplifier that energy efficiency is maximized.

Inter-M has developed various amplifier series which offer the very best sound quality because of
remarkable decrease of standby power and the highest grade of PFC. Thus, that will show new
possibility of our domestic amplifier which can be on a par with the major manufacturer.

DPA SERIES AMPLIFIER suggest new standard and direction of amplifier in domestic sound
industry to move forward.

Why Digital Amplifier?

The main issue is ‘EFFICIENCY’!

Efficiency in amplifier is watt’s ratio to be supplied to achieve the expected output from the amplifier.

For example, a 92% efficient amplifier requires about 1300W to be supplied to achieve 1200W
output. On the other hand, 50% efficient analog amplifier requires 2400W power.

Thus, the existing analog amplifier requires more power to achieve the same amount of outputs.
Also, it will extremely generate heat because high power losses due to low efficiency.

DPA-SERIES digital amplifier is high efficient,

low heat-dissipating and eco-friendly amplifier which minimize power consumption and
generation of heat by designing as the maximum 94% high efficient SMPS power and the maximum
92% efficient Class-D amplifier.

Analog Amplifier

Power

Amp.

Trans.

100%

100% 80% 65% 50%

EFFICIENCY EFFICIENCY

Out
Put
Trans.

50%

Digital Amplifier

SMPS

100%

100% 94% 86%

Amp.

86%

High Power

Traditional analog amplifier

240W x 4, 12Unit Size

Power consumption 1800W

300W x 4Ch 2Unit Size

Power consumption 250W

960W

1200W

VS

1/7

Power

Consumption compare to

analog amplifier

DPA-300Q

Inter-M is proud to present high power digital amplifier with rated output 1200W based on amplifier drawing technology
accumulated in Inter-M.
DPA-SERIES Amplifier has the know-how of Inter-M synthesizing high-efficient and high power SMPS power operation
technology which is core technology of digital amplifier and Class-D amplifier technology, so we could overcome the
output limitations of high impedance amplifier. Also, there are many choices by offering diverse amplifier outputs such as
360W, 600W, 900W, 1200W with 1~4 channels amplifiers.

High Efficiency

All DPA-SERIES AMPLIFIER occupies a small space for installation
compared to the existing analog amplifier by designing as 2 unit size.
And it is able to design economical system which provides
efficiency by minimizing spaces and power consumption with
low-power drawing and various channel setup.
It occupies rack spaces of 12 unit once 4 channel is composed
of the existing analog amplifier, but the space can be saved more
because only 2 unit rack spaces are needed once DPA-300Q
uses 4 channel amplifier. Also, it is very economical compared to
analog amplifier in the aspect of power consumption once only 1/7
level of power consumption is ready to be used.

high

Why must use

Inter-M

digital amplifiers?

High Performance

DPA-SERIES amplifier shows up superior and uncomparable performance to any other digital

power amplifier in domestic and overseas market.

Inter-M

DPA-600S

Rated Output 600W 600W 600W

S/N 103dB 100dB 100dB

THD 0.03% 0.3% 0.2%

Power consumption(1/8)

130W 156W 170W

We offer S/N and THD which have more excellent performance compared to the same level of
other companies’ digital amplifier. Also, it is economically feasible because it consumes lower
power.

※ S/N : The value is Signal to Noise. The more the figure is high, the more clean sound can play

※ THD : This is the abbreviation of Total Harmonics Distortion. The more the figure is low, the more

without noise.

clean sound can play without distortion.

A Company B Company