SKU: 89597191534
sound boosting box

sound boosting box Booster Box

Sale price$20.63 Regular price$22.92
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

sound boosting box Booster BoxFixed Gain Pre Booster Box The newest addition to our Black Box series of products is the fixed gain preamp otherwise know as a booster box. Although many Digital Audio Players and DACs claim 2volts RMS out, measurement of their sustained output shows them considerably less. By utilizing the Booster Box we are able to get the analog output of a DAC DAP to true line levels with significant performance improvements as a result. Think of this as a full

Fixed Gain Pre - Booster Box

The newest addition to our Black Box series of products is the fixed gain preamp otherwise know as a booster box.

Although many Digital Audio Players and DACs claim 2volts RMS out, measurement of their sustained output shows them considerably less. By utilizing the Booster Box we are able to get the analog output of a DAC/DAP to true line levels with significant performance improvements as a result. 

Think of this as a full fledge preamp without the volume control. Gain is modest at 2.2 but in practical terms this means a 800mv output from a USB DAC is boosted to 2V and your tube headphone amp has the input with dynamic headphone. 

At ampsandound we try to build bespoke products that are purest in execution. As a result, all our headphone amps have volume control, the booster box is the perfect companion allowing Your amp to reach its fullest potential. 

Single ended, single gain stage tube amps love robust/hot front ends and digital sources rarely provide the voltage swing, this box is meant to solve this problem. 

In short, add your DAP or your entry level DAC and you'll be blown away but what's possible when coupled to a true analog pre. 

The circuit is simple, right out the NEC Op and manual, the magic comes from pairing a linear regulated PS and an over specified power transformer with great regulation. Rock solid power supply and modest gain equates to ultra-wide bandwidth and low noise floor. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 89597191534

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4.3 ★★★★★
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BJC
Lowell, US
★★★★★ 5
Seems to be a good, quality product
Size: 6 Ft, Color: Black
Very nice to be able to plug in a tablet or other devices and use them without having to sit right next to an outlet
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Reviewed in the United States on July 19, 2025
J
Verified Purchase
Julie Astor
New York, US
★★★★★ 5
Does the job and fits in small place
Size: 6 Ft, Color: Black
Fits well on my night stand and does the job as advertised. All types of plugs fit at once.
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Reviewed in the United States on September 27, 2025
J
Verified Purchase
JOLANS.
Draper, US
★★★★★ 4
Good.
Size: 6 Ft, Color: Black
Hard to look for the right spot for it. But still working good. Can charge several devices but slow charge.
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Reviewed in the United States on October 5, 2025
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Isabel C.
Charlottesville, US
★★★★★ 5
Muy bueno lo recomiendo
Size: 6 Ft, Color: Black
Muy buena calidad de regletas para mesa de noche para conectar los teléfonos
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Reviewed in the United States on May 22, 2026
J
Verified Purchase
jose
Grantham, US
★★★★★ 5
Check how long cable is and which feet it the cable
Size: 6 Ft, Color: Black
I like lol because. My tv cable can’t pull in outlet under my bed because is 3 feet but I like outlet between my bed and my tv and I can pull under my bed to my tv mount
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Reviewed in the United States on November 3, 2025

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