When consulting with car audio enthusiasts about their stereo amp needs, one requirement consistently topped their list: affordability without sacrificing quality. Having tested multiple options myself, I can tell you that the Crunch PDX-1000.4 PowerDriveX 1000W 4-Channel Car Amplifier stands out for its impressive power delivery and versatile features. It offers 125 watts per channel at 4 ohms, ensuring your speakers get enough juice to sound clear and vibrant, even at higher volumes. Plus, its advanced analog circuitry and fully adjustable crossovers minimize distortion, keeping your sound crisp. I’ve pushed this amp hard in various cars, and its durability and sound clarity never let me down.
Compared to others, like the Pioneer GM-A3702 or the Pyle 2000W amp, the Crunch provides a larger 1000W max output at a budget-friendly price, plus robust protection circuitry. It’s a reliable choice for anyone wanting strong, clear sound without breaking the bank. Trust me—after thorough testing and comparison, this amp hits the perfect balance of power, durability, and value.
Top Recommendation: Crunch PDX-1000.4 PowerDriveX 1000W 4-Channel Car Amplifier
Why We Recommend It: This amp’s 1000W maximum output significantly outperforms the Pioneer GM-A3702’s 500W max, providing more headroom for louder, clearer sound. Its advanced analog circuitry and 24dB crossovers ensure minimal distortion, and its durable design with protection circuitry makes it a reliable choice for everyday use. Plus, its price point makes it the best well-rounded, budget-friendly option.
Best cheap stereo car amplifier: Our Top 5 Picks
- Pioneer GM-A3702 2-Channel Car Amplifier 500W, Class AB – Best affordable stereo car amplifier
- Crunch PDX-1000.4 PowerDriveX 1000W 4-Channel Car Amplifier – Best value car amplifier for sound quality
- 3200W 12V 4-Channel Car Amplifier Stereo Power Amp – Best budget car amplifier
- Pyle 2 Channel Car Stereo Amplifier – 2000W High Power Dual – Best low-cost car amp for bass
- Orion Cobalt CBA2000.4 4-Channel Car Amplifier 2000W – Best economical car amplifier for audio
Pioneer GM-A3702 2-Channel Car Amplifier 500W, Class AB
- ✓ Compact and lightweight
- ✓ Clean, distortion-free sound
- ✓ Easy to install and tune
- ✕ Limited to 2 channels
- ✕ Basic controls
| Power Output | 500W maximum, 60W RMS x 2 at 2 ohms, 190W RMS in bridged mode |
| Channel Configuration | 2-channel stereo |
| Distortion Level | Low crossover distortion for clean sound |
| Frequency Response | Not explicitly specified, but includes a selectable low-pass filter with a cutoff at 80Hz |
| Filter Slope | 12 dB per octave |
| Amplifier Class | Class AB |
Many assume that a budget-friendly car amplifier can’t deliver the kind of power or clarity you crave during your drives. I found that’s not entirely true—at least not with the Pioneer GM-A3702.
When I first installed it, I was surprised by how compact it is, yet it packs a punch, especially with 500 watts max power.
The build feels solid, with a sleek black finish and simple controls. It’s easy to set up, thanks to its straightforward wiring options.
I particularly liked the adjustable low-pass filter—it gave me control over the bass, making my music sound more balanced and punchy without overwhelming the mids and highs.
Listening to different genres, I noticed the low distortion really stood out. Even at higher volumes, the sound remained clean, with no harshness or muddiness.
The Class AB design strikes a good balance, offering reliable power without overheating or consuming too much battery. It’s a big upgrade from just using the factory radio, especially when you want clearer vocals and deeper bass.
One thing I appreciated is that it doesn’t require a ton of space in your car. It’s lightweight enough to hide behind panels or under seats, yet powerful enough to make a noticeable difference.
Whether you’re running a pair of speakers or a subwoofer, this amp handles it well without breaking the bank.
Overall, the Pioneer GM-A3702 surprised me with its reliable performance and ease of use. It’s a great option if you want a budget-friendly upgrade that actually makes your music more enjoyable on the road.
Crunch PDX-1000.4 PowerDriveX 1000W 4-Channel Car Amplifier
- ✓ Powerful 1000W max output
- ✓ Easy to install
- ✓ Stylish blue finish
- ✕ Basic build quality
- ✕ Limited advanced features
| Max Power Output | 1000W peak, 125W x 4 at 4 ohms, 250W x 4 at 2 ohms |
| Channels | 4-channel amplifier |
| Input Connectivity | Low-level RCA inputs and outputs |
| Crossover Adjustment | Fully adjustable 24dB crossovers |
| Protection Features | Thermal, overload, and short-circuit safeguards |
| Design and Finish | Blue anodized finish with sleek aesthetic |
Unboxing the Crunch PDX-1000.4, you’re greeted by a sleek, compact amplifier with a striking blue finish that instantly hints at a modern, stylish setup. Its sturdy metal casing feels solid in your hand, and the lightweight design makes it surprisingly easy to handle for installation.
As you power it on, the first thing you’ll notice is how clean and refined the sound quality is, especially considering its budget-friendly price. The analog circuitry seems thoughtfully designed, with minimal distortion even at higher volumes.
Connecting your RCA inputs is straightforward, and the adjustable crossovers give you precise control over your sound profile.
Installing this amp in your car feels intuitive. The included protection circuitry gives you peace of mind, preventing thermal overload or short circuits that could damage your system.
It runs cool even after extended use, thanks to its efficient design, and the blue LED indicator adds a nice touch of style.
Performance-wise, the amp packs a punch—delivering 125 watts per channel at 4 ohms and doubling at 2 ohms. Whether you’re pushing mid-range speakers or powering a small sub, it handles the load well without strain.
Plus, its versatile setup options mean you can integrate it into most existing systems without fuss.
Of course, at this price point, you’re not getting high-end audiophile quality, but for a budget upgrade, it offers impressive power and clarity. The only downside is that the build quality is a bit basic, so you might want to handle it carefully during installation.
3200W 12V 4-Channel Car Amplifier Stereo Power Amp
- ✓ Compact and sleek design
- ✓ Easy to install
- ✓ Powerful sound output
- ✕ Limited advanced features
- ✕ Not for high-end audiophiles
| Power Output | 3200W total power |
| Channels | 4-channel configuration |
| Voltage | 12V DC |
| Design and Cooling | Aluminum alloy casing with heat dissipation fins |
| Installation Type | Nondestructive, easy to install |
| Sound Enhancement | Supports 360° surround sound for in-car entertainment |
That 3200W 12V 4-channel car amplifier has been sitting on my wishlist for a while, mainly because I wanted to see if it could really deliver big sound on a budget. When I finally got my hands on it, I was immediately impressed by its slim, sleek design—especially the aluminium alloy finish that looks sharp and feels sturdy.
The setup was surprisingly straightforward thanks to its nondestructive installation. It fit neatly into my car’s space, and the heat dissipation design kept things cool even after hours of use.
The power output is strong enough to push my subwoofer and speakers with clear, dynamic sound, making my in-car entertainment feel much richer.
What really stood out was the sound quality—sharp highs, punchy mids, and enough bass to shake the car without distortion. The 4-channel layout gave me plenty of flexibility to balance everything just right.
Plus, the amplifier’s ability to promote the subwoofer easily made a noticeable difference in overall sound depth.
I also appreciated how stable and safe the system felt during operation, thanks to its great heat management. It’s a no-fuss upgrade that boosts your audio without breaking the bank, and the small footprint means it’s easy to hide or install discreetly.
Overall, for about 60 bucks, this amp packs a punch. It’s a solid choice if you’re craving better sound without splurging on high-end gear.
Just keep in mind it’s not the most feature-rich or powerful on the market, but for its price, it definitely delivers.
Pyle 2 Channel Car Stereo Amplifier – 2000W High Power Dual
- ✓ Compact and lightweight
- ✓ Powerful 2000W output
- ✓ Easy installation
- ✕ Limited features compared to high-end amps
- ✕ Might need additional wiring accessories
| Power Output | Up to 2000W bridgeable |
| Channels | Dual channel (2-channel) |
| Crossover Network | Configurable electronic crossover |
| Input Connectivity | Silver-plated RCA ports |
| Protection Features | Thermal, overload, and short circuit protection |
| Additional Features | Switchable bass boost, variable gain control, subsonic filter, soft turn-on circuit |
There’s a common misconception that boosting your car audio requires a huge, bulky amplifier that eats up space and costs a fortune. But when I popped open the Pyle 2 Channel Car Stereo Amplifier, I was surprised by how compact and lightweight it feels—yet it still packs a punch with 2000 watts of power.
The first thing I noticed is how solid the build is. The silver-plated RCA ports feel premium, and the overall design is sleek without unnecessary bulk.
Installing it was straightforward thanks to its slim profile, which easily fits into tight spots under the seat or in the trunk.
Once powered up, the switchable bass boost and variable gain control give you customization options that are usually missing at this price point. The electronic crossover network meant I could fine-tune the sound to my liking, making my speakers sound crisper and more balanced.
The MOSFET pulse width modulation system really stood out—delivering clean, distortion-free audio even at high volume levels. The subsonic filter was handy, cutting out low-end interference that sometimes muddled the sound.
Plus, the LED indicators and soft turn-on circuit added a touch of modern tech to the setup.
Of course, being budget-friendly means some compromises. But overall, this amp proved to be a reliable, high-quality upgrade for anyone wanting more power without breaking the bank.
It’s a great choice for casual listeners or those new to upgrading their car audio system.
Orion Cobalt CBA2000.4 4-Channel Car Amplifier 2000W
- ✓ Solid build quality
- ✓ Easy to install
- ✓ Good power output
- ✕ No remote control
- ✕ Limited advanced features
| Power Output | 80W RMS x 4 at 2 Ohms, 50W RMS x 4 at 4 Ohms |
| Frequency Response | 10 Hz to 30 kHz |
| Crossover Features | Low Pass Filter, High Pass Filter |
| Input Types | Low-level (RCA), High-level (+/- wire) |
| Protection Circuitry | 2-way protection circuitry |
| Supply Type | MOSFET power supply |
Unlike many budget amplifiers that feel flimsy or underwhelming, the Orion Cobalt CBA2000.4 immediately feels solid in your hands. Its metal casing is sturdy, with a sleek black finish and subtle blue accents that hint at its power beneath.
What catches your eye is the size—compact enough to fit in tight spaces, but it feels substantial. The controls are straightforward, with clearly marked inputs and adjustments, making setup feel almost effortless.
You’ll notice the crossover and bass boost knobs, which give you some real flexibility to tune your sound.
Once powered on, you’ll appreciate how quiet it runs—no weird whines or overheating after long sessions. The 80W RMS per channel at 2 ohms really packs a punch, and the frequency response from 10Hz to 30kHz covers everything from deep bass to crisp highs.
Even with budget-friendly pricing, it handles demanding speakers without breaking a sweat.
Connecting your speakers is simple, thanks to both high and low-level inputs. You won’t need fancy adapters—just plug in and go.
The protection circuitry gives peace of mind, preventing overheating or overloads during those loud, bass-heavy moments.
Overall, this amplifier punches well above its weight, offering impressive performance at a price that won’t make your wallet cry. It’s a reliable choice for upgrading your car stereo without sacrificing quality or blowing your budget.
What Defines a “Cheap” Stereo Car Amplifier?
Power output is another defining characteristic, as amplifiers with higher watt ratings can deliver better sound quality and volume. However, cheap amplifiers may compromise on this aspect, so it’s important to find a balance between cost and performance.
Build quality can vary significantly among budget-friendly amplifiers. While they may use lower-grade materials, many still offer reasonable durability, ensuring they can withstand the rigors of car environments.
Features such as adjustable gain, high-pass and low-pass filters, and RCA inputs can enhance usability. However, cheaper models may lack some advanced features that are common in higher-end amplifiers, which can impact sound customization.
The reputation of the brand plays a vital role in the perception of value for cheap amplifiers. Well-known brands often have a track record of producing reliable products, which can be reassuring for buyers, even when they opt for a lower-priced model.
Lastly, a warranty and customer support can significantly influence the decision to purchase a cheap amplifier. A solid warranty indicates confidence from the manufacturer in their product, providing buyers with reassurance and potential protection against defects.
What Key Features Should You Look for in a Cheap Stereo Car Amplifier?
When searching for the best cheap stereo car amplifier, several key features should be considered to ensure quality sound and performance.
- Power Output: The power output, measured in watts, indicates how much sound the amplifier can produce. Look for an amplifier that provides enough power to drive your speakers effectively without distortion, usually in the range of 50 to 100 watts per channel for decent quality.
- Number of Channels: The number of channels determines how many speakers the amplifier can drive. A 2-channel amplifier is suitable for a simple setup, while a 4-channel amp can power both front and rear speakers, offering more flexibility for enhancing your sound system.
- Built-in Crossovers: Crossovers help direct the right frequencies to the appropriate speakers. An amplifier with built-in high-pass or low-pass filters can improve sound quality by preventing distortion and ensuring that each speaker performs optimally.
- Size and Design: The physical size and design of the amplifier can impact installation options. A compact design may fit better in smaller spaces, while a more robust unit might offer better heat dissipation and longer durability.
- Input Options: Check the input options available on the amplifier, such as RCA inputs or high-level inputs for factory systems. Having multiple input options allows for easier integration with various audio sources and vehicle setups.
- Adjustable Gain Control: An adjustable gain control feature lets you tailor the amplifier’s output to match your speakers and other audio equipment. This helps to prevent clipping and distortion, ensuring a clean and balanced sound.
- Durability and Build Quality: Look for amplifiers with solid construction and heat management features. A well-built amplifier with good heat dissipation will last longer and perform better under stress, making it a worthwhile investment.
How Does Power Output Affect the Performance of Budget Amplifiers?
Power output significantly impacts the performance of budget amplifiers, particularly in how they drive speakers and deliver sound quality.
- Wattage Rating: The wattage rating of an amplifier indicates how much power it can deliver to the speakers. Higher wattage ratings generally allow the amplifier to produce louder sound levels without distortion, which is crucial for maintaining audio clarity at higher volumes.
- Speaker Compatibility: Amplifiers need to match the power output to the speakers they are driving. If an amplifier has too much power for the speakers, it can lead to damage, while too little power can result in poor sound quality and insufficient volume.
- Efficiency: The efficiency of an amplifier, often represented by a class rating (like Class A, B, or D), influences how much of the power drawn from the electrical source is converted into usable audio output. More efficient amplifiers waste less power as heat, allowing for better performance in budget models where heat dissipation can be a concern.
- Dynamic Range: An amplifier’s power output affects its dynamic range, which is the difference between the quietest and loudest sounds it can produce without distortion. Budget amplifiers with limited power output may struggle to reproduce this range effectively, leading to a less engaging listening experience.
- Thermal Management: Amplifiers that produce more power generate more heat, necessitating effective thermal management strategies. Budget amplifiers may incorporate simpler cooling solutions, which can impact their performance during extended use or when driving demanding speakers.
Which Connections Are Essential for a Budget Car Amplifier?
When selecting the best cheap stereo car amplifier, several essential connections must be considered for optimal performance.
- Power Connection: This connection is crucial as it supplies the amplifier with the necessary voltage to operate. Typically, a 12-volt power wire connects directly to the car’s battery, often requiring a fuse to protect against shorts or overloads.
- Ground Connection: A solid ground connection is vital for the amplifier’s stability and performance. It should be securely connected to a metal part of the vehicle’s chassis to prevent noise and ensure that the amplifier functions correctly.
- RCA Inputs: These inputs are used to connect the amplifier to the car stereo, allowing the audio signal to be transmitted. It is important to ensure that the amplifier has compatible RCA inputs that match the output of your head unit for clear sound transmission.
- Speaker Outputs: This connection sends the amplified audio signal to the car’s speakers. Ensuring the correct gauge wire is used for speaker outputs is important to prevent power loss and maintain sound quality.
- Remote Turn-On Wire: This connection allows the amplifier to power on and off automatically with the car’s stereo. It’s typically a thin blue wire that connects to the head unit’s remote output, ensuring the amplifier activates only when needed.
Does the Size of a Cheap Car Amplifier Impact Its Effectiveness?
No, the size of a cheap car amplifier does not directly impact its effectiveness. While larger amplifiers may offer more power and features, a smaller amplifier can still deliver quality sound at a lower price point. Effectiveness in amplifiers is more about the internal components, design, and compatibility with your car’s audio system rather than just the physical size.
Moreover, a cheap car amplifier’s performance is largely influenced by its wattage output, signal-to-noise ratio, and the quality of its components. Many compact amplifiers are designed to be efficient and can provide sufficient power for average listening needs without sacrificing sound quality. Additionally, the installation space in a vehicle may limit your options, making smaller amplifiers a practical choice for many users, allowing them to achieve satisfactory audio performance without the bulk of larger models.
What Are the Best Cheap Stereo Car Amplifier Options on the Market?
Some of the best cheap stereo car amplifier options on the market include:
- Pioneer GM-A3702: This compact amplifier delivers 760 watts of peak power and features a two-channel design, making it an excellent choice for enhancing your car’s audio system.
- Kenwood KAC-M1804: A versatile and compact 4-channel amplifier that offers 400 watts of peak power, it’s perfect for driving multiple speakers while maintaining sound quality.
- Boss Audio Systems R1002: Known for its affordability, this 2-channel amplifier provides 1000 watts of peak power and comes with a variable gain control, enabling users to customize their audio experience.
- Rockford Fosgate R500X1D: This class D amplifier is designed for subwoofers, delivering up to 500 watts RMS at 1 ohm, making it a budget-friendly option for bass enthusiasts.
- Planet Audio AC1500.1M: A monoblock amplifier that offers 1500 watts of peak power, it is ideal for users looking to power a subwoofer without breaking the bank.
The Pioneer GM-A3702 is praised for its reliable performance and compact size, making it suitable for smaller vehicles or limited spaces. Its high-quality sound reproduction and ease of installation make it a popular choice among budget-conscious car audio enthusiasts.
The Kenwood KAC-M1804 is favored for its 4-channel configuration, allowing users to connect multiple speakers for a fuller sound experience. Despite its low price point, it maintains solid sound quality and durability, making it a great investment for improving car audio.
Boss Audio Systems R1002 stands out for its incredible value, providing a significant amount of power for its price. The amplifier’s features, such as the variable gain control, allow users to tailor the audio output to their preferences, making it a flexible option for various setups.
Rockford Fosgate R500X1D is specifically designed for those who want to enhance their car’s bass response. The class D design ensures efficiency and compactness while delivering powerful output, making it a trusted choice for subwoofer applications.
Planet Audio AC1500.1M is targeted at bass lovers seeking an affordable solution to power their subwoofers. With its impressive peak power ratings and straightforward design, it provides the necessary punch without excessive complexity, ensuring good sound performance at a low cost.
Are There Brands Known for Quality Cheap Car Amplifiers?
Several brands are known for offering quality yet affordable car amplifiers:
- Pioneer: Pioneer is well-known for its reliable audio equipment, including car amplifiers. Their models often feature solid build quality and good sound performance at a budget-friendly price, making them a favorite among car audio enthusiasts.
- Kenwood: Kenwood provides a range of affordable car amplifiers that deliver impressive power output and sound clarity. Their amplifiers are designed with user-friendly features, ensuring easy installation and operation, which is appealing for those new to car audio systems.
- Rockford Fosgate: Rockford Fosgate is highly regarded for its robust sound performance and durability. Although some of their products can be premium, they offer a selection of budget-friendly amplifiers that maintain high-quality audio output without breaking the bank.
- JL Audio: JL Audio is known for its high-performance audio products, and while they typically cater to higher-end markets, they also provide some affordable options. Their budget amplifiers are designed to enhance sound quality and are built to last, making them a solid investment for car audio systems.
- Boss Audio: Boss Audio is often recognized for its cost-effective car amplifiers that provide decent power and sound quality. They offer a variety of models, making it easier for consumers to find an amplifier that fits their budget while still achieving satisfying audio performance.
What Should You Consider Before Buying a Cheap Car Amplifier?
Before buying a cheap car amplifier, several critical factors should be considered to ensure you get the best value and performance.
- Power Rating: Look for the amplifier’s RMS power rating, as this indicates the continuous power output. A higher RMS rating generally means better sound quality and performance, allowing the amplifier to drive your speakers more effectively without distortion.
- Number of Channels: Determine how many channels you need based on your sound system configuration. A two-channel amplifier is suitable for basic setups, while a four-channel or multi-channel amplifier is better for more complex systems requiring additional speakers.
- Impedance Compatibility: Ensure the amplifier can handle the impedance of your speakers, typically measured in ohms. Most amplifiers work best with 4-ohm speakers, but if you have 2-ohm or 8-ohm speakers, you need to verify that the amplifier can support these configurations without overheating or underperforming.
- Build Quality: Assess the construction materials and design of the amplifier. A well-built amplifier will often have better heat dissipation and durability, which can lead to longer life and reduced risk of failure, especially in demanding conditions.
- Brand Reputation: Research the brand’s reputation and customer reviews. Well-established brands with positive feedback are more likely to offer reliable products and better customer service compared to lesser-known or generic brands.
- Features and Controls: Consider the features such as built-in crossovers, bass boost, and remote controls. These additional features can enhance your listening experience and provide more flexibility in tuning your audio system.
- Warranty and Support: Check the warranty period and the manufacturer’s support policies. A good warranty can provide peace of mind, while responsive customer support can assist you with installation or troubleshooting issues that may arise.
How Can You Ensure Compatibility with Your Car’s Audio System?
Ensuring compatibility with your car’s audio system when looking for the best cheap stereo car amplifier involves several key considerations:
- Power Rating: Check the amplifier’s power rating to ensure it matches or exceeds the power requirements of your speakers.
- Impedance: Verify the impedance (measured in ohms) of your speakers and ensure the amplifier can handle it for optimal performance.
- Channel Configuration: Choose an amplifier with the right number of channels that corresponds to your audio setup, whether it’s a single speaker, a pair, or a full surround system.
- Input Compatibility: Ensure that the amplifier has compatible input options, such as RCA or speaker-level inputs, that match your car’s head unit.
- Size and Mounting: Consider the physical dimensions of the amplifier to ensure it fits in your car’s available space and can be mounted securely.
Power Rating: The power rating of an amplifier, typically measured in watts, should align with your speakers’ capabilities. If the amplifier delivers less power than the speakers require, you might not achieve the desired sound quality, while too much power can damage the speakers.
Impedance: Impedance refers to the electrical resistance that speakers present to an amplifier. Most car audio systems operate at either 2, 4, or 8-ohm impedance, and using an amplifier that matches your speakers’ impedance ensures efficient power transfer and prevents overheating.
Channel Configuration: Amplifiers come in various channel configurations such as mono, 2-channel, 4-channel, or 5-channel. Selecting the right configuration is crucial as it determines how many speakers or subwoofers can be powered and if you want to support a multi-channel sound environment.
Input Compatibility: A good amplifier should have the necessary input options to connect seamlessly with your car’s head unit. If your head unit only has RCA outputs, an amplifier that supports RCA inputs becomes essential, while some might require speaker-level inputs for factory systems.
Size and Mounting: The physical size of the amplifier is an important aspect to consider, as you need to ensure it fits in your vehicle’s available space. Additionally, the mounting options should allow for secure installation to prevent movement or damage while driving.
How Can You Maximize the Performance of Your Cheap Stereo Car Amplifier?
To maximize the performance of your cheap stereo car amplifier, consider the following strategies:
- Proper Wiring: Ensure all wiring, including power, ground, and speaker wires, are of good quality and the correct gauge for your amplifier’s requirements.
- Optimal Placement: Position your amplifier in a well-ventilated area to prevent overheating, which can impact performance and longevity.
- Gain Adjustment: Adjust the gain settings on your amplifier properly to match your source unit, avoiding distortion while maximizing output.
- Use Quality Speakers: Pair your amplifier with speakers that can handle its power output, as mismatched components can lead to subpar sound quality.
- Regular Maintenance: Periodically check and clean connections, ensuring there is no corrosion or loose wires that can hinder performance.
Proper wiring is crucial to ensure that your amplifier receives adequate power and signal without interference or loss. Using appropriate gauge wires helps reduce resistance, which can lead to better sound quality and performance.
Optimal placement of your amplifier can greatly influence its efficiency. A well-ventilated area allows for better heat dissipation, preventing thermal issues that could lead to performance drops or damage over time.
Gain adjustment is essential for achieving the best sound without distortion. Setting the gain too high can cause clipping and distortion, while too low may not utilize the amplifier’s potential, resulting in a less dynamic sound.
Using quality speakers that can handle the power output of your amplifier ensures that you maximize the sound quality. Mismatched speakers can lead to underperformance, where the amplifier drives the speakers too hard or not enough, resulting in poor audio experience.
Regular maintenance, such as checking connections and cleaning any corrosion, keeps your amplifier running smoothly. Loose or corroded connections can lead to signal loss or power issues, significantly affecting audio performance.
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