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GISEN M-DSP Series is the digital amplifier with built-in DSP. Parameters can be adjusted by PC software. Its excellence shows in high efficiency and top class timbre. By adopting the full-bridge low consumption power supply, we can make it in small size and at the same time with strong dynamic. Besides, the module structure and electronic volume control both reflect their value in practical and commercial field. Applied to situations like performance, Venue, high-class Business entertainment club etc.
M-DSP 2-Channel Top View
M-DSP 2-Channel Rear Plate
| Mode | M20D-DSP | M30D-DSP | M40D-DSP | M50D-DSP | M60D-DSP |
| 8 ohms Stereo Power 4 ohms Stereo Power 2 ohms Stereo Power | 2X650W 2X1300W 2X1690W | 2X900W 2X1800W 2X2340W | 2X1300W 2X2600W 2X3380W | 2X1500W 2X3000W - | 2X1800W 2X3600W - |
| Hum& Noise | >112dB | ||||
| Input connector | XLR Female | ||||
| link connector | XLR Male | ||||
| Input impedance | 20k ohms balanced | ||||
| Input Sensitivity | 1.4V | ||||
| Input CMRR | >80dB | ||||
| Output connector | Speakon | ||||
| Damping Factor | >1000 @ 8Ω | ||||
| THD | <0.1%(20Hz-20kHz，1W) | ||||
| Frequency Response | 20Hz-20kHz (±0.3dB)@1W, 8Ω | ||||
| volume adjustment | Electronic volume adjustment | ||||
| Internet input connector | Controlling parameters by PC software | ||||
| Internet output connector | Multiple amplifiers on-line control by connecting to the internet input of the next amplifier | ||||
| Touch-screen | adjust the parameters by touching the screen | ||||
| Cooling | Variable speed fans, front to rear airflow | ||||
| Power Requirement | AC180V-240V (90V-120V), 50-60Hz | ||||
| Dimensions（H*W*L） | 47mmX483mmX448mm | ||||
| Carton Dimension(H*W*L) | 100mmX640mmX590mm | ||||
| Net weight(kg) Gross weight(kg) | 9.5 11.5 | ||||
1. Sheet Metal Processing
2. Circuit Board Plug-in
3. Circuit Board Debugging
4. Circuit debugging
5. Product assembly
6. Debugging of the whole machine
7. Product Aging
A-dac II specs:
High 6.5 Cm. With 12.5 Cm. Depth 14.0 Cm. Weight 0.5 Kg. | Inputs: 1 x USB 1 x Toslink or Spdif | Outputs: 1 pair RCA 1 pair XLR (truly Balanced) 1 x Digital Spdif |
The A-DACII is a digital converter with USB and Spdif/coax and Toslink inputs.
The digital signal is up sampled from 16bit to 24bit and the frequency response is increased from 44.1 KHz to 192 KHz. This will reduce the noise floor by more than 10dB so that music signal previously masked by the noise now will stand out and amplified, and high frequency overtones will be reproduced without any distortion..
To achieve maximum cancelation of distortion and low frequency noise, the amplifier stage is fully balanced from input to output. To further reduce the distortion and improve linearity, all transistors are matched.
This reduce the need for high negative feedback and thereby avoid the traditional "transistor sound".
To avoid influence from the noisy computer supply, a separate DC power is supplied.
This also reduces the distortion from the USB system.
A digital Spdif/coax output makes it possible to connect other digital products to the unit, such as home theater system.
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