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Description
audison SR 4.300Audison SR 4. 300 4 channel amplifier with crossover and great power packed into ultra compact dimensions (85 W x 4 4?) SR line, perfected by taking full advantage of the capabilities of the latest amplification devices. After numerous listening tests with professionals and enthusiasts, Audison's R&D team decided to adopt a new class D technology called ADT (Audison D Class Technology) for this line of amplifiers, which has made it possible to
Audison SR 4.300 4-channel amplifier with crossover and great power packed into ultra-compact dimensions (85 W x 4 4?)
SR line, perfected by taking full advantage of the capabilities of the latest amplification devices. After numerous listening tests with professionals and enthusiasts, Audison's R&D team decided to adopt a new class D technology called ADT (Audison D-Class Technology) for this line of amplifiers, which has made it possible to considerably reduce their size, totally preserving the audio performance that characterises every Audison design.
As far as the electronic design is concerned, every aesthetic and functional detail of the Audison SR 4.300 has been taken care of, resulting in a compact amplifier made of extruded aluminium with rounded corners, which facilitates the installation of the product in narrow spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, there is no need for internal cooling fans, which often cause noise and dust accumulation.
In keeping with tradition, the SR amplifiers confirm their vocation for versatility by including on all models a complete filter section, suitable for any kind of audio system configuration. The controls, protected by a satin-finished aluminium panel, are located on the top panel of the amplifier, so that they can be easily reached from above, even after the product has been installed. When the system includes an Audison bit processor, the filter section can be totally excluded.
Audison USS
Thanks to the integration of Audison USS (Universal Speakers Simulator) technology in the high level inputs, the SR amplifiers can also be conveniently connected to OEM sources equipped with the 'speaker load detection' function, which monitors the presence of a low impedance load enabling the audio outputs.
Audison SR 4.300 allows multiple connectivity
All models have balanced high-level inputs for connecting to the OEM headunit speaker output and a low-level RCA for after-market speakers. When using the high-level input, the ART (Automatic Remote On/Off) function can be enabled to control the amplifiers' power-up with the headunit's power button. In addition, there is a remote IN / OUT socket to allow control of multiple amplifiers in cascade that turn on when needed.
Through the PRE-OUT signal using the Speaker-IN socket it is possible to interface the amplifier with OEM sources that only have amplified outputs, allowing for system expansion.
SR line, perfected by taking full advantage of the capabilities of the latest amplification devices. After numerous listening tests with professionals and enthusiasts, Audison's R&D team decided to adopt a new class D technology called ADT (Audison D-Class Technology) for this line of amplifiers, which has made it possible to considerably reduce their size, totally preserving the audio performance that characterises every Audison design.
As far as the electronic design is concerned, every aesthetic and functional detail of the Audison SR 4.300 has been taken care of, resulting in a compact amplifier made of extruded aluminium with rounded corners, which facilitates the installation of the product in narrow spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, there is no need for internal cooling fans, which often cause noise and dust accumulation.
In keeping with tradition, the SR amplifiers confirm their vocation for versatility by including on all models a complete filter section, suitable for any kind of audio system configuration. The controls, protected by a satin-finished aluminium panel, are located on the top panel of the amplifier, so that they can be easily reached from above, even after the product has been installed. When the system includes an Audison bit processor, the filter section can be totally excluded.
Audison USS
Thanks to the integration of Audison USS (Universal Speakers Simulator) technology in the high level inputs, the SR amplifiers can also be conveniently connected to OEM sources equipped with the 'speaker load detection' function, which monitors the presence of a low impedance load enabling the audio outputs.
Audison SR 4.300 allows multiple connectivity
All models have balanced high-level inputs for connecting to the OEM headunit speaker output and a low-level RCA for after-market speakers. When using the high-level input, the ART (Automatic Remote On/Off) function can be enabled to control the amplifiers' power-up with the headunit's power button. In addition, there is a remote IN / OUT socket to allow control of multiple amplifiers in cascade that turn on when needed.
Through the PRE-OUT signal using the Speaker-IN socket it is possible to interface the amplifier with OEM sources that only have amplified outputs, allowing for system expansion.
Amplifier Tech Data
| Channels | 4 |
| Class | D-Class |
| Hi Level Input | Yes |
| Low Level Input | Yes |
| Digital Input | No |
| Power supply voltage / fuse | 11 ÷ 15 VDC / 1 x 30A |
| Operating power supply voltage | 6.5V ÷17 VDC |
| Idling current | 1.6 A |
| Idling current when off | 0.03 mA |
| Consumption @ 14.4 VDC, 2?, Max Musical Power | 25 A |
| Remote OUT | 6.5 ÷ 15 VDC (150 mA) |
| Remote IN | 6.5 ÷ 15 VDC (1 mA) |
| ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable) | 1.5 ÷ 7 VDC |
Amplifier Stage
| Distortion - THD @ 100 Hz, 4?, 70% Rated Power | 0.03% |
| Bandwidth A | 10Hz ÷ 35 kHz |
| S/N ratio A | 100 dBA |
| Damping factor A | 150 |
| Input sensitivity Pre-In | 0.2 ÷ 5 VRMS |
| Input sensitivity Speaker-In | 0.8 ÷ 20 VRMS |
| Total Power RMS | 520 W |
| Minimum load impedance |
@ 4Ch: 2? @ 3Ch: 2? + 2? + 4? @ 2Ch: 4? |
| Output Power (RMS) @14.4 VDC, 1% THD |
4Ch 85 W x 4 (4?) 4Ch 130 W x 4 (2?) 3Ch 80 W x 2 (4?) + 250 W x 1 (4?) 3Ch 130W x 2 (2?) + 260 W x 1 (4?) 2Ch 250 W x 2 (4?) |
| Adjustable Crossover | Yes |
CEA Specifications
| Output power @ 4?, 1% THD+N, 14.4 V | Output power @ 4?, 1% THD+N, 14.4 V: 75 W x 4 Ch |
| SN ratio (ref. 1W output) | SN ratio (ref. 1W output): 82 dBA |
Inputs
| Input Type | Pre-In / Speaker-In |
| Filters Outputs | PRE OUT full range (Input A) |
| Filter Pass A | Ch Filters: - Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct. |
| Filter Pass B | Ch Filters: - Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct. |
| Filter Pass C | Ch Filters: - Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct. |
| Filter Pass D | Ch Filters: - Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct. |
| Channel Mono | A/B Ch MONO IN (on/off) Yes |
| Inputs/Outputs Bass Boost | B Ch (0 ÷12) dB |
Other
| Weight | 1.56 kg |
Features
- Elegant and functional design with rounded corners to minimize space, facilitating installation.
- Built-in USS (Universal Speakers Simulator).
- Full built-in crossover section.
- Balanced high-level inputs for connecting to the OEM head unit speaker output
- Low-level RCA for after-market speakers.
- ART (Automatic Remote On/Off) function.
- Remote IN / OUT socket to allow control of multiple amplifiers.
- PRE-OUT allows for system expansion.
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
4.1 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Toys
Color: Orange
My dog loves this
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 4
Awesome, but not the best squeakers.
Color: Purple
I bought the orange gecko for my 5-month-old Corgi puppy. He absolutely loves it. He came up with a "game" (sort of) where if I pick it up and start squeaking one of the ends/squeakers really quickly over and over, he'll grab the other end/squeaker and start doing the same thing with me. It was really cute until one of the squeakers stopped working about a week after I bought it... but I guess the toy wasn't too expensive, and he doesn't really seem to mind that one of the squeakers doesn't work anymore. I might buy another next time I do an Amazon order (so I can get the free shipping) and see if it lasts a little longer.
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Reviewed in the United States on August 2, 2013
★★★★★ 5
Great Toy For a Great Price
Color: Purple
My Aussie loves toys and plays with them as though she is a small child. She has a basket and will go to the basket and dig through it until she finds what she is looking for. Lately she has been using the bungee gecko as her toy of choice. She gets bored easily and will rip the stuffing out of most toys, the fact that this one has lasted 6 weeks or so is impressive with no rips, holes or missing limbs. Her favorite way to play is to come over to me and nudge me to play tug of war and we have broke many toys this way but so far we can play tug a war several minutes at a time and the gecko is still in one piece. For the price which is considerable less than some of her other toys I have already ordered a couple of replacements for the future. This is a great well built dog toy that has has a lot of give and can be stretched without ripping.
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Reviewed in the United States on May 3, 2013
★★★★★ 3
No longer as durable
Color: Purple
I have one of these that has made it through 2 dogs but now the bungee is stretched out. It's been such a well loved toy I recently got another one. They've changed the plush fabric. The old one was indestructible. This new one is much thinner and easily torn. I wish they would go back to the old plush fabric.
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Reviewed in the United States on February 4, 2024
★★★★★ 5
Great Toy!
Color: Orange
This has been a great toy for our 11 week old German Shepherd. She absolutely loves it. I can get out all of her toys and lay them out with the exception of her "Lizzy" and she will immediately go to her toy bin and get it herself. Needless to say it is her favorite toy. She has had it a week now and she plays with it a lot, chewing and squeaking. It's a pretty amazing toy to have held up this long already and to date shows no sign of wear or damage. Lizzy just keeps going and going.
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Reviewed in the United States on April 4, 2014