- Наличност: В наличност
- Модел: AF M4D
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Свързани продукти
Amplifier | 1040 W total power | 4 x 260 W @ 2ohm | D-class Fully Bridgeable
AF M4D е проектиран да добави мощни канали към AF Bit усилвателите с DSP или към DSP Bit One HD Virtuoso. Включен е кабел за входен сигнал plug-and-play, за да направи свързването към AF Bit усилвателите директно. Усилвателя е БУЗ кросоувър. AF M4D разполага с четири усилени канала 160W x 4 @4Ω*, 260W x 4 @2Ω*, с аудиофилския звук на последното поколение технология Audison D-Class. По-високите честоти на превключване, по-стръмното филтриране и компонентите с по-висок толеранс осигуряват звук над и отвъд очакванията за клас D – в невероятно компактен пакет! Аудио лентата е разширена до 40 kHz, спечелвайки желания сертификат за висока разделителна способност. Свързването на двойки канали води до 520W x 2 @4Ω*, гарантиращо гъвкава и мощна производителност.*Изходна непрекъсната мощност (RMS) @14,4 VDC, 1% THD, управлявани от всички канали.
Amplifier Tech Data
| Channels | 4 |
| Class | D-Class |
| Efficiency | 83 % |
| Hi Level Input | Yes |
| Low Level Input | Yes |
| Digital Input | No |
| Power supply voltage / fuse | 11 ÷ 15 VDC |
| Operating power supply voltage | 6.5 ÷ 17.5 VDC |
| Idling current | 1.12 A |
| Idling current when off | 0.007 mA |
| Consumption @ 14.4 VDC, 2Ω, Max Musical Power | 47 A |
| Remote OUT | 6.5 ÷15 VDC (150 mA) |
| Remote IN | 4 ÷15 VDC (1 mA) |
| ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable) | 1.5 VDC |
Amplifier Stage
| Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power | 0.05% |
| Bandwidth A | (-3 dB, 2 VRMS, 4 Ω): 10 Hz ÷ 42 kHz |
| S/N ratio A | (A weighted @ 1 V): 103 dBA |
| Input sensitivity Pre-In | 0.6 ÷ 6 VRMS |
| Input sensitivity Speaker-In | 2.2 ÷ 22 VRMS |
| Total Power RMS | 1040 W |
| Minimum load impedance | 4 Ch 2Ω 2 Ch - (Bridge) 4Ω |
| Output Power (RMS) @14.4 VDC, 1% THD | 4Ch @ 4Ω: 160 W x 4 4Ch @ 2Ω: 260 W x 4 2Ch (Bridge 1/2; 3/4) @ 4Ω: 520 W x 2 |
| Adjustable Crossover | No |
CEA Specifications
| Output power @ 4Ω, 1% THD+N, 14.4 V | 150 W x 4 |
| SN ratio (ref. 1W output) | 80 dB |
Inputs
| Input Type | Pre-In / Speaker-In |
| Remote Sub Volume | ±12 dB |
Other
| Fuse | 2 x 30A |
| Weight | 2.04 kg |
Dimensions
 | |
| Dimension A | 240 mm |
| Dimension B | 156 mm |
| Dimension C | 47 mm |
Technologies
ADT uses a switching frequency twice as fast as many other modern Class D amplifiers using very high-tolerance component parts to keep the timing correct even during temperature extremes. The higher switching frequency of Audison Class D moves noise much farther away from the audible band. Audison Class D amplifiers also use a steeper 4th-order analog lowpass filter, rather than the simpler 2nd-order lowpass filters usually used in competing designs. The steeper filter will keep noise much lower in amplitude – which is good for controlling EMI and preventing infrasonic noise from getting to the tweeters. It also keeps phase shift outside the audible range. The cost is higher – twice as many components are needed for a 4th-order filter compared to the usual 2nd-order filter, and each output channel needs its own filter – but Audison determined through exhaustive listening testing that this design was the best-sounding approach.
The “All Channels Driven” design philosophy guarantees that the Audison amplifier delivers the rated power on all channels simultaneously. To reach that target, Audison designed the amplifier power supply to handle the cumulative power demand.