Product Features：
VDA Series
is a new multi-channel and flexible power amplifier.
VDA
series is the upgrade version based on the basis of class-D power amplifier.
1. VDA series of products using power
factor correction (PFC) technology to provide users globally applicable
low-power AC power.
2. VDA series has increased parallel and
bridge mode function, with stronger applicability.
3. Its sound quality is with large dynamic
range, high efficiency, low distortion, and high damping factor to ensure long-time
stability of performance and extend the life of the cooling circuit of the
amplifier.
4. with the compact design, and compared to
traditional audio amplifier, Class D technology presents you more excellent
performance in a significant reduction in heat dissipation while conveying stronger
power to the speaker.
|
MODEL
|
VDA2180
|
VDA2250
|
VDA2350
|
VDA2450
|
VDA4180
|
VDA4250
|
VDA4350
|
VDA4450
|
VDA8180
|
VDA8250
|
VDA8350
|
|
8Ω Stereo Output Power
|
200W
|
260W
|
390W
|
470W
|
200W
|
260W
|
390W
|
470W
|
200W
|
260W
|
390W
|
|
4Ω Stereo Output Power
|
380W
|
480W
|
750W
|
910W
|
380W
|
480W
|
750W
|
910W
|
380W
|
480W
|
750W
|
|
2Ω Stereo Output Power
|
600W
|
750W
|
1200W
|
1450W
|
600W
|
750W
|
1200W
|
1450W
|
600W
|
750W
|
1200W
|
|
8Ω Bridged
|
720W
|
950W
|
1400W
|
1600W
|
720W
|
950W
|
1400W
|
1600W
|
720W
|
950W
|
1400W
|
|
Frequency
response(1W,8ohms)+0/-3dB
|
10Hz-20kHz
|
10Hz-20kHz
|
10Hz-20kHz
|
|
THD+N 1KHz
|
0.02—0.05%
|
0.02—0.05%
|
0.02—0.05%
|
|
S/N rate
|
-100dB
|
-100dB
|
-100dB
|
|
Damping factor
|
＞600
|
＞600
|
＞600
|
|
Crosstalk
|
＞70
|
＞70
|
＞70
|
|
Input sensitivity
|
0.775V 1.4V
2.8V
|
0.775V 1.2V
|
0.775V 1.2V
|
|
Input impedance
|
>10KΩ balanced or unbalanced
|
>10KΩ balanced or unbalanced
|
>10KΩ balanced or unbalanced
|
|
Output circuitry
|
D
|
D
|
D
|
|
Front panel
control
|
AC power
switch; LED: power (green),
|
AC power
switch; LED: power (green),
|
AC power
switch; LED: power (green),
|
|
Signal
(green) -5 dB / -10dB / -20dB (green), clipping (orange), protection (red);
volume control
|
Signal
(green) -4 dB / -7dB / -10dB / -15dB (green), clipping (orange), protection
(red); volume control
|
Signal
(green) -4 dB / -7dB / -10dB / -15dB (green), clipping (orange), protection
(red); volume control
|
|
Rear panel control
|
Input Mode: bridging
(red), parallel (orange), stereo (green); sensitivity: 0.775V (red), 1.4V
(orange), 2.8 (green);
|
Input Mode: bridge
(red), parallel (yellow), stereo (green), sensitivity (no)
|
Input Mode: bridge,
parallel, stereo, sensitivity
|
|
Input connector
|
XLR；RCA
|
Phoenix
plug
|
Phoenix
plug
|
|
Output connector
|
Speakon
|
Speakon
|
Speakon
|
|
Cooling
|
2 fans, airflow from
the left panel to the right panel, Promise wind speed, according to the
temperature.
|
2 fans, airflow from
the front panel to rear panel, 2-set wind speed, according to the
temperature.
|
2 fans, airflow from the front panel to rear panel,
Promise wind speed, according to the temperature.
|
|
产品尺寸Product dimension(mm)
|
483mm×295mm×45mm
|
483mm×320mm×45mm
|
483mm×420mm×45mm
|
|
