Formosa Audiomate Ltd.

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1
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


(
ODM/OEM
are
WELCOME
)

A.

Picture:












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2
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


B.


Introduction



MT
-
2X04USB is 2CH stereo digital power amplifier with high performance DSP application
for stage, professional audio, home hi
-
end audio and karaoke products. Thanks to the
accurate digital signal processing, it is flexible to adapt various sound applications and
advantages as bel
l
ows:




Class
-
D and switching power Design for high efficiency, high stability & lighter weight.



Output power setting from 200Wx2CH ~1000W (BTL)



On b
oard digital signal processing includes crossovers,
compressors,

PEQs(frequency
point, Gain, Q value), delay time setting, output limit setting.



Easy Graphic User Interface (GUI) Control for DSP parameter adjustment and preset
saved/load through USB

(what you change

through GUI
, what you feel
synchronously
)


C.


Specifications


1.

Output power @ THD 1%



SE
-
2CH/8Ohm

SE
-
2CH/ 4Ohm

BTL
–
8Ohm

䵔
-
2304啓B

(
amplifier:
LD
-
2304K)

200W
rms

300W
rms

600W
rms

MT
-
2504USB

(
amplifier: LD
-
25
04K

II
)

3
0
0W
rms

500W
rms

1000W
rms





2. S/N Ratio @ rated power
………………………
.................................... > 100 dB @ A
-
WEI


3. THD @
-
3dB rated power
……………………………………………………………

< 0.05%


4. Input sensitivity
……………………………………………………………………………

0.5
V


5. Input Impedance
…………………………………………………………
..................... 22K
Ω


6. dimension: 19
”


1U rack


7. package: 1pc/carton





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3
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


D.


Hardware block diagram




E.


DSP processing (24
-
bit, 48kHz, 2in
-
2out)


1.

block diagram




HPF
LPF
10Band
PEQ
Compressor
Bridge
&
Signal
Routing
Delay
Limiter
HPF
LPF
10Band
PEQ
Compressor
Delay
Limiter
CH1
out
CH2
out
CH1
in
CH2
in
Vol
& Invert
Vol
& Invert


P
4
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


2.

processing block

A.

input volume control : with slew and mute
control

B.

HPF, LPF:

1)

cutoff

fr
equency : 20~20kHz

2)

Slope type:

Butterworth
-
12,24dB/oct


Bessel
-
12,24dB/oct

Linkwitz
-
Riley
-
12,24 dB/oct

C.

10
-
Band PEQ:

1)

frequency : 20~20kHz

2)

Gain: +/
-

12dB

3)

Q: 0.1~1
6

D.

Delay: 12.5ms max per channel

E.

Compressor:

1)

Threshold
:6dB~
-
20dB

2)

Ratio: 1:1~20:1

3)

Attack: 0.1~200ms

4)

Release: 10~1000ms

F.

Limiter:

1)

threshold : 0dB ~
-
12dB

2)

Time constant: 50~500 dB/sec

G.

Bridge:

1)

B
ridge
d

by CH1 signal

2)

Bridged by CH2 signal

3)

Bridged by CH1
+
CH2
(mix)
signal












P
5
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


F.


GUI control

Software




1.

Full
Control of the DSP

2.

Graphic
al
Frequency Response Display(PEQ and HPF ,LPF)

3.

Graphical Compressor Curve Display

4.

Link Function: for linking the parameters of ch1&ch2

5.

Indicator: For user turn on th
e LED on the front panel
to identify the status

6.

preset SAVE/LOAD




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6
/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


G.


Applications examples

1.

Stereo in stereo out:



2.

Bridged out



MT
-
2X04USB

STEREO IN

STEREO
OUT

USB

MT
-
2X04USB

MONO IN Ch1

Bridged out ch1

MONO IN Ch2

Bridged out ch2

MT
-
2X04USB



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/
7


Formosa Audiomate Ltd.

Web site:
http://www.formosa
-
audio.com

TEL: 886
-
2
-
3234 1012 FAX: 886
-
2
-
3234 7349

E
-
mail: cathy@formosa
-
audio.com

March

11
, 20
1
3
.


3.

Bi
-
amp for Two way Speaker




4.

Subwoofer


High

Low

CH1+Ch2

Bridged

MT
-
2X04USB

MT
-
2X04USB