
400-0987 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.95 | Condition is New, RadioShack 400-0987 High-Power In-Wall White Stereo Volume Control 50W RMS *NEW*, FREE SHIPPING | 99.4% |
![]() | $13.99 | Top Pick! Condition is New, RadioShack 400-0987 High-Power In-Wall White Stereo Volume Control 50W RMS *NEW*, shipping cost = $5.99 | 99.6% |
![]() | $14.95 | Condition is New, Radio Shack Stereo Volume Control Wall Unit Knob 50W RMS - 400-0987, shipping cost = $7.79 | 99.9% |
![]() | $11.95 | Condition is New, Radio Shack High-Power In-Wall White Stereo Volume Control 50W RMS 400-0987, shipping cost = $13.17 | 100.0% |
![]() | $15.99 | Condition is New, Radio Shack 400-0987 Power In-Wall Beige Stereo Volume Control 50W RMS. Tag G333, shipping cost = $9.69 | ![]() |
![]() | $15.99 | Condition is New, Radio Shack 400-0987 Power In-Wall Beige Stereo Volume Control 50W RMS. Tag 517W, shipping cost = $9.69 | ![]() |
![]() | $15.99 | Condition is New, Radio Shack 400-0987 Power In-Wall White Stereo Volume Control 50W RMS. Tag 208W, shipping cost = $9.69 | ![]() |
![]() | $17.59 | Condition is New, 2 Radio Shack Stereo Volume Control Wall Unit Knob 50W RMS - 400-0987, shipping cost = $8.00 | 99.8% |
![]() | $9.99 | Top Pick! Condition is New, Radio Shack High-Power In-Wall STEREO VOLUME CONTROL 400-0987 New, shipping cost = $18.15 | 98.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.95 | Condition is Used, NOS Hi Power Stereo Volume Control / Audio Autoformer Radioshack 40-987 In-Wall, shipping cost = $5.95 | 98.9% |

The Radioshack 400-0987 NOS Power Stereo Volume Control Autoformer, also known as the 40-987 In-Wall Audio Component, is a versatile and high-performing audio solution designed for installing in residential or commercial environments. This in-wall volume control offers both power amplification and volume control in a single compact unit, making it an ideal choice for those looking to optimize their audio system's performance while minimizing clutter.
The Radioshack 400-0987 NOS Power Stereo Volume Control Autoformer is engineered with a robust 150-watt power handling capacity, ensuring that it can comfortably drive even the most demanding speakers with clarity and precision. Its automatic transformer design, also known as an autoformer, allows it to deliver optimal impedance matching to the connected speakers, resulting in a more efficient power transfer and improved overall sound quality.
This in-wall volume control features a user-friendly rotary volume knob, allowing you to easily adjust the volume levels for individual zones or rooms without the need for a separate remote control or external amplifier. It also includes a bypass switch that lets you bypass the volume control function and directly connect the speaker wires to the amplifier, providing greater flexibility and versatility for your audio setup.
The Radioshack 400-0987 NOS Power Stereo Volume Control Autoformer is constructed with high-quality components designed to withstand the rigors of in-wall installation, including a durable epoxy-coated chassis and gold-plated terminals for corrosion resistance and reliable signal transfer. It also features a compact size, measuring just 4 inches wide by 4 inches tall by 1.5 inches deep, allowing it to easily fit into standard wall cavities and blend seamlessly into your home or business decor.
In summary, the Radioshack 400-0987 NOS Power Stereo Volume Control Autoformer is an exceptional in-wall audio component that delivers powerful amplification, precise volume control, and optimal impedance matching in a compact and versatile package. Its robust construction, user-friendly design, and automatic transformer technology make it a must-have for anyone seeking to enhance their audio system's performance and functionality.
The Radioshack 400-0987, also known as the NO S Power Stereo Volume Control Audio Autoformer 40-987, is an in-wall stereo volume control designed for installing in residential audio systems. Here are some pros and cons that might help you make a decision about purchasing this product:
Pros:1. Easy installation: This volume control is designed for in-wall installation, making it a convenient solution for home audio systems.
2. Autoformer technology: The autoformer technology in this volume control ensures that the correct amount of power is delivered to each speaker, regardless of the speaker impedance.
3. Stereo design: The stereo design of this volume control allows for separate volume control for each channel, providing better sound quality and balance.
4. Space-saving design: With its in-wall design, the volume control saves valuable wall space and keeps wires and cables neatly hidden.
Cons:1. Limited features: This volume control is primarily designed for volume control and does not include additional features like bass or treble adjustment.
2. Requires professional installation: While the volume control itself is easy to install, the installation process may require the help of a professional electrician or audio technician.
3. May not be compatible with all audio systems: It is important to ensure that this volume control is compatible with your existing audio system before making a purchase.
In conclusion, the Radioshack 400-0987 is a useful addition to any home audio system that requires separate volume control for each channel and the ability to deliver the correct amount of power to each speaker. However, its limited features and potential need for professional installation are important considerations. Ultimately, if you are looking for a reliable and effective in-wall stereo volume control for your home audio system, the Radioshack 400-0987 is a solid choice. However, it is important to ensure that it is compatible with your existing audio system before making a purchase.
Details:
The item has only been tested to the extent described in condition/testing notes. Packaging may vary. We wont leave you stuck without a solution. If fact it may have unknown flaws and deficiencies.
The results of all tests that are performed disclosed in the ad. Nos hi power stereo volume control / audio autoformer Radioshack 40-987 in-wall, we gladly ship worldwide scroll down for more photos and details, new sealed as shown in actual photos. Daniel rudely, sandier, ca, USA. What you see in the picture is what get nothing more less.
specifications stereocompo:
- brand: Radioshack
- mpn: 400-0987
- compatible brand: Universal
- type: Volume Control Part
returns stereocompo:
- method: money back
- policy: returns accepted
- paid by: buyer
- time: 30 days
shipping stereocompo:
- transit: 4-9 days
- type: fixed
- service: standard
- class: standard
payments stereocompo:
- other
- credit card: diners-club
- wallet: apple-pay
general stereocompo:
- category: Electronics > Audio > Home Stereo Components
seller stereocompo:
- # reviews: 1882
- rating: 97.6%
- city: san diego, california
offer stereocompo:
- started: april 12, 2025
- prices: $9.99–$19.95
- item condition:
- New
- Used
- options: ship-to-home
- availability: in stock
- in stock #: 5
- sold #: 20
- best offers: true
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