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- USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
audison AF C4DAF companion amplifiers are designed to add powerful amplifier channels to AF bit processor amplifiers. A plug and play signal input harness is included to make connection to AF bit amplifiers straightforward. AF companion amplifiers are also perfect for use with systems controlled and managed by a standalone bit processor, such as a bit One HD Virtuoso. AF companions have a straight wire architecture, without analog preamp functions such as crossover
AF companion amplifiers are designed to add powerful amplifier channels to AF bit processor amplifiers. A plug-and-play signal input harness is included to make connection to AF bit amplifiers straightforward. AF companion amplifiers are also perfect for use with systems controlled and managed by a standalone bit processor, such as a bit One HD Virtuoso. AF companions have a “straight wire” architecture, without analog preamp functions such as crossover filtering, and are intended for use with external processors. AF M4D boasts four high-fidelity amplified channels 90W x 4 @4?*, 150W x 4 @2?* with the audiophile sound of the latest generation Audison D-Class technology. Higher switching frequencies, steeper filtering, and higher-tolerance components deliver sound above and beyond the expectation of Class D – in an amazingly compact package! The audio band is extended up to 40 kHz earning the coveted High-Resolution certification. Bridging channel pairs results in 300W x 2 @4?*, guaranteeing flexible and powerful performance.
*Output Continuous Power (RMS) @14.4 VDC, 1% THD, all channels driven.
*Output Continuous Power (RMS) @14.4 VDC, 1% THD, all channels driven.
Amplifier Tech Data
| Channels | 4 |
| Class | D-Class |
| Efficiency | 84% |
| 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 | 0.004 A |
| Idling current when off | 0.6 mA |
| Consumption @ 14.4 VDC, 2?, Max Musical Power | 25 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, 4?, 70% Rated Power | 0,03% |
| Bandwidth A | (-3 dB, 2 VRMS, 4 ?): 10Hz ÷ 40kHz |
| S/N ratio A | (A weighted @ 1 V): 102 dBA |
| Damping factor A | (1 kHz, 4?, 2 VRMS): 95 |
| Input sensitivity Pre-In | 0.6 ÷ 6 VRMS |
| Input sensitivity Speaker-In | 2.2 ÷ 22 VRMS |
| Total Power RMS | 600 W |
| Minimum load impedance | 2?: |
| Output Power (RMS) @14.4 VDC, 1% THD |
4Ch @ 4?: 90 W x 4 4Ch @ 2?: 150 W x 4 2Ch (bridge) @ 4?: 300 W x 2 |
| Adjustable Crossover | No |
CEA Specifications
| Output power @ 4?, 1% THD+N, 14.4 V | 90 W x 4 |
| SN ratio (ref. 1W output) | 81 dBA |
Inputs
| Input Type | Pre-In / Speaker-In |
| Remote Sub Volume | ±12 dB |
Other
| Fuse | 1 x 30 A |
| Weight | 1.49 kg |
Features
- Improved audio performance and power thanks to the latest generation of ADT (Audison D-Class) technology
- Unbeatable power/volume ratio up to 0.47 W RMS/cm³ reaching 81% of efficiency
- Hi-Res compatibility performance, with an extended audio band up to 40 kHz
- Maximum versatility thanks to the possibility of using the bridging option for each pair of power outputs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1127 reviews
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Product Reviews
★★★★★ 4
Didn't have to wait long to get this item
Size: 11.5 Wide, Color: British Tan Leather/Ivory
Very nice quality 👍 color is exactly as shown in pictures, size is right on. Very comfortable with good arch support.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Can you go wrong with Cole Haans?
Size: 10.5, Color: British Tan Leather/Ivory
Can you go wrong with Cole Haans? My husband loves these shoes and says they are very comfortable.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
A really nice pair of shoes
Size: 12 Wide, Color: Stucco
This is my second pair of Cole Haan shows and they're great.
I waited until these were on sale so the price was amazing.
The sizes run true and they fit perfectly. I have to purchase wide shoes because of my "boat feet"....lol
They're very light so walking around all day is a lot easier
They fit very well and are comfortable to wear, even right out of the box.
The soles have solid traction.
They look great and I get a lot of compliments at work when wearing them.
For the price, fit and quality, I'll be buying more in different colors as they go on sale.
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Reviewed in the United States on October 18, 2024
★★★★★ 5
Comfortable
Size: 12, Color: Black
These shoes offer an exceptional level of comfort, making them a favored choice for daily wear. Happy, who has incorporated them into his work attire, appreciates their quality and design to such an extent that he has decided to purchase several additional pairs in various colors. This variety not only enhances his wardrobe but also allows him to enjoy the same comfort and style across different outfits, showcasing the versatility and appeal of these shoes.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Amazing Shoes
Size: 9, Color: Brown
This is my first time wearing a Bruno Marc MaxFlex Dress Sneakers Oxfords Casual Wingtip Brogue Shoes.
I was quite impressed how the shoes arrived and how they had a protection bag over each shoe. Very impressed by that, The shoes are very comfortable , lightweight squishy and affordable and very stylish. I recommend them.
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Reviewed in the United States on April 25, 2026