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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
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first.
Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far.
Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Pet Recommended, Easy to Setup, Durable, Versatile, Trainable, Weather Resistant
The Aipper 25-pack is a bulk puppy toy bundle designed for small dogs and light chewers. It focuses on variety, affordability, and basic dental benefits, making it popular with new puppy owners. If you want a cheap, all-in-one starter toy bundle, this is a solid buy.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Doggies happy
Amazing value and good variety of toys. Puppies love them.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
My dogs loved their toys
Not the most durable but my husky puppies loved them!
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Must have @ Puppy Yoga Club
I purchased the Aipper Dog Toys 25 Pack for use with puppies at my job, and it’s been a really practical and affordable option for a high-energy, group setting.
The variety in the pack is the biggest benefit. With a mix of squeaky toys, ropes, balls, and plush toys, it’s easy to rotate items throughout the day and keep multiple puppies engaged at once. The squeaky toys grab attention quickly, while the rope toys are great for interactive play and light tug games.
For a work environment with frequent use, the value is excellent. Having so many toys in one set makes it easy to replace or swap out toys as they get worn down, which is helpful when working with multiple puppies at the same time.
Durability is average for the price—some of the softer plush toys don’t hold up to rough play for long—but the rope toys tend to last better. Overall, they work best in supervised settings rather than for heavy chewers.
Overall, this set is a great, budget-friendly solution for keeping puppies entertained and engaged in a group setting.
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Reviewed in the United States on June 9, 2026