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Some headphone amplifiers are designed to be portable and others are meant to be placed on a desk. This will tell you what style of amplifier this item is.
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This is the manner in which the headphone amplifiers receive an input audio signal.
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This is the manner in which the headphone amplifier will output the audio signal.
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A Digital-to-Analog converter (also known as a DAC) converts a digital audio signal into an analog signal. This is especially helpful for listen to music from digital sources, such as iPods and smart phones.
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This is the required way to give the unit power. Common power sources are 120V AC (Common house plugs), batteries, or a combination of the two. If the headphone amplifier uses batteries, this will list the type of batteries that are required. Please refer to the description to find out how many are required for the unit to be properly powered.
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JDS Labs cMoy (cMoyBB v2.03)

Rechargeable Headphone Amplifier with Selectable Bass Boost, JDS Labs 12V Adapter, and Auto On/Off

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Rechargeable Headphone Amplifier with Selectable Bass Boost, JDS Labs 12V Adapter, and Auto On/Off

• Rechargeable Portable Headphone Amplifier
• Exclusive Bass Boost Toggle Switch
• Increases Sound Up to 9.4dB
• DC Auxiliary Power Input Jack
• NiMH Battery for Reliable Power

• Rechargeable Portable Headphone Amplifier
• Exclusive Bass Boost Toggle Switch
• Increases Sound Up to 9.4dB
• DC Auxiliary Power Input Jack
• NiMH Battery for Reliable Power

Rechargeable cMoy Amp small

Item added to your cart.

Price: $70.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

JDS Labs, Inc cMoyBB v2.03

Headphone Amplifier with Selectable Bass Boost, Auto On/Off, and Smooth Volume Adjustment Knob

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Headphone Amplifier with Selectable Bass Boost, Auto On/Off, and Smooth Volume Adjustment Knob

• Portable Headphone Amplifier
• Exclusive Bass Boost
• DC Auxiliary Power Input Jack
• Standard 9V battery
• Volume Adjustment Knob

• Portable Headphone Amplifier
• Exclusive Bass Boost
• DC Auxiliary Power Input Jack
• Standard 9V battery
• Volume Adjustment Knob

cMoyBB small

Item added to your cart.

Price: $49.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

JDS Labs Objective2

AC Rechargeable Battery Desktop Amplifier with Dual Gain Switch (AC Power Adapter Sold Separately)

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AC Rechargeable Battery Desktop Amplifier with Dual Gain Switch (AC Power Adapter Sold Separately)

• Custom Metal Enclosure
• 14-20v AC Input Rechargeable Battery
• 3.5mm Input and Output Ports
• On/Off with LED Illumination
• Smooth Noiseless Volume Adjustment

• Custom Metal Enclosure
• 14-20v AC Input Rechargeable Battery
• 3.5mm Input and Output Ports
• On/Off with LED Illumination
• Smooth Noiseless Volume Adjustment

Objective2 (Silver) small

Item added to your cart.

Price: $139.95

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

JDS Labs C421 (C421 v1.01) Headphone Amplifier

Brushed Aluminum Headphone Amplifier with Bass Boost, Low Battery Detection, Dual Gain

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Brushed Aluminum Headphone Amplifier with Bass Boost, Low Battery Detection, Dual Gain

Desktop Headphone Amplifier • Low Battery Indication • USB Powered Smart Charging • Bass Boost • Dual Gain

Desktop Headphone Amplifier • Low Battery Indication • USB Powered Smart Charging • Bass Boost • Dual Gain

C421 small

Item added to your cart.

Price: $189.00

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

JDS Labs cMoy Rechargable Portable Headphone Amplifer Tin (cMoyBB v2.03) Open Box

Rechargeable Headphone Amplifier with Selectable Bass Boost, JDS Labs 12V Adapter, and Auto On/Off

Go to item page Right Arrow Icon of Right Arrow

Rechargeable Headphone Amplifier with Selectable Bass Boost, JDS Labs 12V Adapter, and Auto On/Off

• Rechargeable Portable Headphone Amplifier
• Exclusive Bass Boost Toggle Switch
• Increases Sound Up to 9.4dB
• DC Auxiliary Power Input Jack
• NiMH Battery for Reliable Power

• Rechargeable Portable Headphone Amplifier
• Exclusive Bass Boost Toggle Switch
• Increases Sound Up to 9.4dB
• DC Auxiliary Power Input Jack
• NiMH Battery for Reliable Power

JDS Labs, Inc Objective2 Professional Grade Desktop Headphone Amplifier Open Box

AC Rechargeable Battery Desktop Amplifier with Dual Gain Switch (AC Power Adapter Sold Separately)

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AC Rechargeable Battery Desktop Amplifier with Dual Gain Switch (AC Power Adapter Sold Separately)

Custom Metal Enclosure • 14-20v AC Input Rechargeable Battery • 3.5mm Input and Output Ports • On/Off with LED Illumination • Smooth Noiseless Volume Adjustment

Custom Metal Enclosure • 14-20v AC Input Rechargeable Battery • 3.5mm Input and Output Ports • On/Off with LED Illumination • Smooth Noiseless Volume Adjustment

JDS Labs, Inc C421 Black Edition Headphone Amplifier

Brushed Aluminum Black Edition Headphone Amplifier w/ 0.1% Thin Film Resistors

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Brushed Aluminum Black Edition Headphone Amplifier w/ 0.1% Thin Film Resistors

Black Edition Headphone Amplifier • Alps Dual Analog Potentiometer • 0.1% Thin Film Resistors • USB Powered Smart Charging • 3.5mm Gold Plated Input & Output Jacks

Black Edition Headphone Amplifier • Alps Dual Analog Potentiometer • 0.1% Thin Film Resistors • USB Powered Smart Charging • 3.5mm Gold Plated Input & Output Jacks

c421 Black small

Item added to your cart.

Price: $184.00

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
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