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Zapco ST-4B 4-Channel 65 Watts x 4 RMS Full Range Class AB Amplifier
SBD 1672
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Affordable and reliable 4-channel bridgeable amplifier with versatile features.
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What Stands Out
Product Details
- 4-Channel, Class-AB Full Range Amplifier
- Stable into 4 ohms bridged or 2 ohms stereo load
- MOSFET power supply
- RCA and OEM speaker level input
- Variable Inputs Gain Control
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Output Power | 65 Watts |
| Maximum Output Power | 260 watts |
| Item Dimensions | 12.2 x 2.05 x 7.17 inches (31 x 5.2 x 18.2 cm) |
| Specification Met | Unspecified Technical Specifications |
| Manufacturer | Zapco |
| Model | ST-4B |
| Brand Name | Zapco |
| Part Number | ST-4B |
| Item Type Name | ST-4B |
| Included Components | Mounting ScrewsOwner's Manual, Mounting Screws, Owner's Manual, ST-4B 4 Channels Class AB Amplifier |
| Unit Count | 1.0 Count |
| Item dimensions L x W x H | 12.2 x 2.05 x 7.17 inches (31 x 5.2 x 18.2 cm) |
| Brand | Zapco |
What's in the box
ST-4B 4 Channels Class AB Amplifier
Owner's Manual
Mounting ScrewsOwner's Manual, Mounting Screws
Who Should Buy?
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Car Audio Enthusiasts
Ideal for users seeking improved sound quality and power for their vehicle's audio system.
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Home Theatre Setups
Perfect for individuals looking to enhance their home audio experience with high fidelity performance.
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Compact Installations
Well-suited for users needing a space-saving amplifier without compromising on audio output and clarity.
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Budget-Conscious Buyers
Might not be suitable for users looking for very low-cost audio amplification solutions.
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High-Powered Systems
Not ideal for users with high-demand audio systems needing significantly greater power output.
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Bass-Heavy Users
May not meet the needs of users prioritizing deep bass over balanced full-range audio fidelity.
Product Description
About This Item
Introducing the Zapco ST-4B 4 Channels Class AB Amplifier, a black beauty that delivers exceptional audio performance. Designed by Zapco, a renowned brand known for producing high-quality amplifiers, the ST-4B is perfect for both car and home audio systems. It offers a class AB design, ensuring powerful and clean sound reproduction. With four channels, this amplifier allows you to connect multiple audio sources such as speakers or subwoofers, providing a truly immersive listening experience.
Whether you're a bass lover or an audiophile, the ST-4B is sure to impress you with its outstanding performance. The ST-4B amplifier is equipped with Bluetooth connectivity, making it easy to wireless stream your favorite music from your smartphone, tablet, or any other Bluetooth-enabled device. It also features a built-in DSP (Digital Signal Processor), allowing you to fine-tune your audio settings and customize the sound to your preferences. If you crave power and clarity, the ST-4B amplifier delivers. With high power output and low distortion, every note and beat will come to life, taking your audio experience to a whole new level.
The compact design of this amplifier makes it easy to install in any space, perfect for both professional use and DIY audio projects. Zapco takes pride in the durability of their products, and the ST-4B amplifier is no exception. Built to withstand the rigors of daily use, this amplifier is engineered to last for years to come, providing endless hours of enjoyment. In summary, the Zapco ST-4B 4 Channels Class AB Amplifier is a top-of-the-line product. With its powerful performance, advanced features, and durable build, it is the ideal choice for anyone seeking high-quality audio amplification at an affordable price.
Take your audio experience to the next level with Zapco and the ST-4B amplifier.
Customer Questions & Answers
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Question:
What are the main features of the Zapco ST-4B 4-Channel Amplifier?
Answer: The Zapco ST-4B 4-Channel Amplifier boasts impressive features including 65 watts RMS per channel, which provides robust power for full-range audio. It features a Class AB design that delivers high efficiency and excellent sound quality, minimizing distortion. This amplifier also includes a built-in crossover system, allowing seamless integration with your speaker setup for optimized performance. For car audio enthusiasts, this amplifier is ideal for powering multiple speakers, enhancing your listening experience during long drives. -
Question:
How does the Class AB design of the Zapco ST-4B affect sound quality?
Answer: The Class AB design of the Zapco ST-4B allows for a superior combination of high power output and sound fidelity. Unlike Class D amplifiers that can introduce dynamic range issues, Class AB amplifiers provide cleaner sound with lower distortion levels. This results in a richer audio reproduction, capturing the nuances in your favorite music genres. It's especially beneficial in vehicles where ambient noise can mask subtleties, making the ST-4B a great choice for balanced audio in any environment. -
Question:
Can the Zapco ST-4B be used with subwoofers?
Answer: Yes, the Zapco ST-4B can be effectively used with subwoofers thanks to its versatile 4-channel configuration. By bridging two of its channels, you can easily power a subwoofer while using the other two channels for full-range speakers. This flexibility allows you to customize your audio system layout, making it suitable for creating a powerful bass response while still enjoying clear and detailed highs. This makes it an excellent choice for those looking to enhance their audio system without compromising on performance. -
Question:
What type of speakers work best with the Zapco ST-4B amplifier?
Answer: The Zapco ST-4B amplifier pairs well with a variety of speaker types, especially those designed for full-range audio. It’s compatible with 4-ohm and 8-ohm speakers, allowing you to use either configuration without loss of performance. Ideal partners include coaxial or component speakers that benefit from the amplifier's clear output and dynamic range. This amp is particularly suited for automotive applications where you need high-quality sound to fill the space effectively, providing an immersive listening experience. -
Question:
Is the Zapco ST-4B suitable for home audio systems?
Answer: While the Zapco ST-4B is primarily designed for automotive sound systems, it can also be integrated into home audio setups if proper accommodations are made. Its compact design and high output make it an appealing choice for driving bookshelf speakers or home theater speakers in small setups. However, users should consider power requirements and impedance matching to ensure optimal performance. Many users find this flexibility beneficial for creating a powerful audio experience in both cars and home environments. -
Question:
What kind of installation accessories do I need for the Zapco ST-4B?
Answer: To install the Zapco ST-4B, you will need a suitable set of installation accessories that typically include an amplifier wiring kit, speaker wire, and RCAs for audio input. An appropriate mounting bracket may also be helpful for securing the amplifier in your vehicle. Adequate fuses and connectors ensure safety and functionality in your setup. By using high-quality installation materials, you can enhance the performance and longevity of your amplifier, making it a worthwhile investment for your audio system. -
Question:
What is the power output of the Zapco ST-4B amplifier?
Answer: The Zapco ST-4B amplifier provides a power output of 65 watts RMS per channel, delivering substantial energy to drive your speakers effectively. With the ability to power four channels, it can serve various speaker configurations. This output enhances sound clarity and dynamics, allowing for a more engaging audio experience, whether in a car or home setting. Users frequently appreciate the amplifier’s ability to maintain clarity, even at higher volumes, making it perfect for music lovers who enjoy loud playback. -
Question:
Does the Zapco ST-4B support Bluetooth connectivity?
Answer: The Zapco ST-4B does not come equipped with built-in Bluetooth connectivity, as it is a dedicated amplifier without integrated streaming features. However, it can be connected to Bluetooth receivers that plug into your audio source, allowing you to wirelessly transmit audio signals. This flexibility means you can still enjoy modern connectivity options while leveraging the amplifier's robust performance for superior sound. This workaround is popular among users wanting to maintain a high-quality audio experience without sacrificing convenience. -
Question:
Where can I buy Zapco ST-4B 4-Channel 65 Watts x 4 RMS Full Range Class AB Amplifier?
Answer: You can buy the Zapco ST-4B 4-Channel 65 Watts x 4 RMS Full Range Class AB Amplifier from Ubuy. Ubuy offers a platform that provides access to a wide array of products, including high-quality audio equipment. With Ubuy, you can conveniently find the Zapco ST-4B and make your purchase online, ensuring that you receive a reliable and efficient service tailored to your needs. -
Question:
What is the size and weight of the Zapco ST-4B amplifier?
Answer: The Zapco ST-4B amplifier is designed with compact dimensions, making it easy to fit into tight spaces within your vehicle or audio setup. Its lightweight construction also enhances portability and installation convenience. The manageable size ensures that you can discreetly mount the amplifier without compromising on performance. Many users find it an ideal choice for a balanced sound installation where space is at a premium, delivering power without bulk.
Zapco Multichannel Amplifiers Editorial Review
The Zapco ST-4B amplifier offers a powerful and high-quality audio experience. With its class AB design, it delivers clear and dynamic sound performance for your car audio system. The amplifier delivers 100 watts per channel, providing ample power for your speakers. The sleek black design adds a touch of style to your car interior. Overall, the Zapco ST-4B is a reliable and impressive amplifier that will enhance your car audio system.
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Pros
- Powerful and high-quality audio performance
- Clear and dynamic sound
- Ample power for speakers
- Sleek black design adds style
Product Price History
Important information
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SBD 1672
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Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.


