Discontinued Headphone Amplifiers

• All Sport In-Ear Headphones
• Woven Synthetic Fiber Cable
• Slim three-button Mic and Remote System
• Built-in Clothing Clip
• High Efficiency
• Patented Oval Ear Tips
• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

• Audiophile Grade In-Ear Headphones
• Changeable silicone ear tips (XS, S, M, L)
• Custom 8 mm Neodymium High-performance Drivers
• Portable Headphone Amplifier and DAC
• Supports Up to 24-Bit/96 kHz
• Plug-and-Play: No Batteries & No Drivers
• Headphone Drive Ability: 16 to 100 Ohm

• Ultra-compact 4-channel Stereo Headphone Amplifier
• 4 Independent Stereo High-power Amplifier Sections With Individual Volume Control
• Highest Audio Quality With Almost Any And All Types Of Headphones Even At Maximum Volume
• Durable Construction Ensures Long Life

• Headphone Amplifier • Built-In Power Supply
• Two 6.5mm Headphone Outputs
• Solid All-Metal Housing
• Open and Transparent Sound
• Also Suitable for 600 Ohm Headphones

• Metal Shell Portable Headphone Amplifier
• Get Enhanced Audio Output From An Iphone, Along With Switchable Bass Boost
• In-line Controls For Music And Phone Calls For Iphone
• Built In Lithium Ion Battery Lasts For Up To 10 Hours Of Normal Use

• Portable Headphone Amplifier
• Standard 3.5mm Headphone Jack
• Charges Via Micro USB
• Selectable Gain
• White

1/8" (3.5mm) and 1/4" (6.35mm) Headphone Output Ports • Dock Connector for iPod and iPhone • Gain Switch • 1/8" (3.5mm) Sound Source Output • DC 15V Power Port •

• Full-Featured Hard-Shell Case
• Compatible With iPhone 4/4S
• Built-In Battery to Extend Battery Life Up to 44 Hours
• Built-In Headphone Splitter and Amplifier
• Black

• Hi-Fi Companion For Your Mobile Devices
• 7.1 Virtual Surround Support
• Enhanced Audio Realism with SBX Pro Studio
• Powers High-impedance Headphones, with a Dual Gain Switch
• Dual Headphone Outputs
• High-Resolution Audio Playback

• Desktop Headphone Amplifier Can Be Paired To E17
• Input Selection Switch To Seamlessly Switch Sources
• Volume Control With Power Switch Knob And Indicator
• 3 Pairs Of Rca Sound Sound Source (pre-out, Line Out, Aux In)
• Gain Switch For Adjusted Gain Settings

• USB Powered Boostaroo Revolution Hi-Fi Headphone Audio Amplifier
• Up to Four Times more Volume than Previous Generations
• Increases Audio Clarity
• Two Individual Outputs
• Drives Headphones up to 600 Ohm, and PC Speakers

• All Sport In-Ear Headphones
• Woven Synthetic Fiber Cable
• Slim three-button Mic and Remote System
• Built-in Clothing Clip
• High Efficiency
• Patented Oval Ear Tips
• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

• Portable Headphone Amplifier
• 1/8" Stereo Headphone Output & Auxiliary Input
• Fully Discrete Bass Boost Circuit
• Easy to Use Rotary Volume Control & Toggle Switches
• Reinforced Battery Capacity

• Dual Magnet, Dynamic Moving Coil Micro Speaker
• Three-Button Remote + Mic For iOS Devices
• Flat Tangle-Resistant Cable
• Patented Oval Ear Tips
• Comes With Carrying Case, Clothing Clip And 4 Pairs of Ear Tips
• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

• Portable USB DAC and Headphone Amplifier for Mac and PC
• USB 2.0 Connection to Mac and PC
• Up to 24 bit /192kHz audio
• Up to 24 bit / 192kHz audio
• ESS Sabre DAC
• Quad Sum DAC, 4 DACs per Channel for Highest Dynamic Range and Lowest Distortion
• Top Panel Buttons for Adjusting Volume Level

• Headphone Amplifier
• 3 Mini-Jack Outputs
• Increases the Volume up to 2x
• Compatible with any Headphone with a 3.5mm Mini-Jack Connection
• Small, Durable Casing
• Includes a Pair of Headphones
• Battery Powered

• Directly heated triode with single-ended circuit topology
• Minimal, portable design
• Up to 10 hour battery life : 3 Hour charge time
• High power full discrete direct energy solid-state output stage
• Zero global feedback design
• Hand selected military grade subminiature valve JAN6418
• Military and audio grade passive components

• 1/8" (3.5mm) Output
• Coaxial/Optical Input
• USB Recharge and DAC Port
• OLED Display
• 1/8" (3.5mm) Line-In Portable Amplification
• Rechargeable Lithium Ion Battery

• Dual Magnet, Dynamic Moving Coil Micro Speaker
• Three-Button Remote + Mic For iOS Devices
• Flat Tangle-Resistant Cable
• Patented Oval Ear Tips
• Comes With Carrying Case, Clothing Clip And 4 Pairs of Ear Tips
• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

• High-end portable DAC / headphone amplifier
• DAC with up to 24 bit Resolution
• LED Display for Charging, Operation and Volume
• Integrated rechargeable Battery
• Up to 11 hours Operating Time

• Designed for the Music Loving Smartphone Owner
• works with your iPhone, Android or Windows Phone
• Charges in just 4 hours
• Two 3.5mm Analogue Outputs
• Studio Over-ear Headphones with Carrying Case
• Cushion Earpads Provide Superior Comfort For Long Listening Sessions
• Large 42mm Neodymium Drivers Bring Depth & Dimension To Music

• Class-A Amplifier Circuitry
• Single Output Gain Stage
• High Performance Alps Volume Control
• Color: Silver
• XLR Connectors for Balanced Headphone Mode

• Wired Over-Ear Headphones
• High Fidelity Planar Magnetic Drivers
• Open Back Design for Spacious Sound Stage
• Sensitivity: 93dB
• Color: Smoky Gray
• USB-DAC Headphone Amplifier
• Two 6J1 Vacuum Tubes for its Input Stage
• Perfect Match for most PC-driven Audiophile Headphones

• USB/AC Powered Portable Audio Amplifier For Home, Office, Laptop, Or Kiosk
• Increases The Volume Of Any Player By 2x
• Works With Anything That Has A 3.5mm Headphone Jack And A USB Port
• Offers 3 Outputs Jacks For Use With 3 Headphones Or Speakers

• Dual Magnet, Dynamic Moving Coil Micro Speaker
• Flat Tangle-Resistant Cable
• Patented Oval Ear Tips
• Black Finish
• Comes With Carrying Case, Clothing Clip And 4 Pairs of Ear Tips
• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

1/8" (3.5mm) and 1/4" (6.35mm) Headphone Output Ports • Dock Connector for E7 USB DAC • Gain Switch • 1/8" (3.5mm) Sound Source Output • DC 15V Power Port •

• Two 1/8" (3.5mm) Outputs
• USB Recharge and DAC Port
• OLED Display
• 1/8" (3.5mm) Line-In Portable Amplification
• Rechargeable Lithium Ion Battery
• Extended 180 Day Exchange

• Dynamic 40mm Moving Coil Drivers
• 3-Button Remote + Mic for iOS
• Soft, Deep Ear Cushions
• Flat Tangle-Resistant Cable
• Foldable Design for easy storage
• Carrying Case
• Portable Headphone Amplifier
• 1/8" Stereo Headphone Output & Auxiliary Input
• Fully Discrete Bass Boost Circuit
• Easy to Use Rotary Volume Control & Toggle Switches
• Reinforced Battery Capacity

• Built-in amplifier
• Over-ear design with sound dapening materials
• Variable power modes for sound optimization
• Nylon-wrapped cables and 3.5mm to 1/4" adapter included
• Planar magnetic headphones with 50mm x 50mm drivers

• Portable Logitech Ultimate Ears Headphone Booster Cable
• Improves Sound Quality And Upgrades Experience
• Powerful Low Frequency
• High Purity Occ Material

• DAC and Headphone amplifier
• Connects to computer via USB Port
• Improves sound quality

• Item Condition: Open Box
• Headphone Amplifier
• Cigarette lighter adapter
• 2 Mini-Jack Outputs
• Compact Design
• Compatible with any Headphone with a 3.5mm Mini-Jack Connection
• Small, Durable Casing
• Black

• Portable USB, DAC and Headphone Amplifier
• Robust Switches Lead to High Quality Gain and Bass Circuits
• All Metal Housing for Effective Electromagnetic Shielding
• USB Audio Decoding Supports up-to 9 G kHz / 24 bit
• Built-in Li-poly battery for up-to 30 hours of Continuous Playback

• Portable Headphone Amplifier
• 2-Channel DAC
• Built-In Lithium-Ion Battery
• Micro USB and Stereo Mini Jack Connections
• Compatible with a Wide Range of Impedances

• Desktop Headphone Amplifier Can Be Paired To E17
• Input Selection Switch To Seamlessly Switch Sources
• Volume Control With Power Switch Knob And Indicator
• 3 Pairs Of Rca Sound Sound Source (pre-out, Line Out, Aux In)
• Gain Switch For Adjusted Gain Settings
• Extended 180 Day Exchange

• Full-Range Balanced Armature Drivers
• Die-Cast Zinc and Co-Molded Elastomer Housing
• Patented Oval Ear Tips (4 Different Sizes)
• Three-Button Remote + Mic
• Carrying Case + Clothing Clip
• Digital Portable Headphone Amplifier
• Four EQ modes (Flat, BASS1, BASS2, BASS3)
• Convenient 3.5 mm Aux Input Ideal for Devices Such as iPods, Phones and Music Players

• Compact 30W Class T Audio Amplifier
• Hi-Fi Sound
• Signal to Noise Ratio: 80dB
• 3.5mm MP3 Player Input Jack

• USB Rechargeable Lithium Ion Battery
• 1/8" (3.5mm) Mini Jack Output/Input
• Volume Control
• Bass Boost Mode
• Convenient Clip

• Portable Headphone Amplifier
• 1/8" Stereo Headphone Output & Auxiliary Input
• Fully Discrete Bass Boost Circuit
• Easy to Use Rotary Volume Control & Toggle Switches
• Reinforced Battery Capacity

• Featherweight (15 grams)
• KG-926 Full Range Balanced Armature Driver
• Milled Aluminum Chassis
• Patented Oval Ear Tips (4 Different Sizes)
• Three-Button Remote + Mic
• Carrying Case + Clothing Clip
• Portable High Resolution Lossless Music Player
• Built-in Separate Amplifier and DAC
• 2.0 inch Color TFT Screen
• Micro SD Card Supported
• Battery Life: 12 Hrs
• Color: Gold

• Compact Headphone Amplifier
• 4 Individual Channels with Volume Control
• 1/4" Connection
• Features 1 Input/4 Output
• Red power LED
• Signal-to-Noise: 90 dB

• Analog Headphone Amplifier
• Symmetrical Signal Processing
• Symmetrical Inputs and Outputs
• High-end ALPS Quadruple Potentiometer
• Variable Gain Factor (Five Stages)
• Sophisticated Metal Housing
• Solid Controls Turned from Solid Metal

• Wired Stereo Headphones
• Over-ear Design
• Large 50 mm Dynamic speakers and Balanced Armature Drivers
• IEM Special Edition Portable Headphone Amplifier
• Op-Amp Combo for Low Distortion Audio
• Special Metal Film Resistors
• Optimized Sound Tuning
• Internal Rechargeable Battery

• Audiophile Grade Class-A Headphone Amplifier & DAC
• Frequency Response: 20 Hz - 20,000 Hz
• Line Out Impedance: 50 ohm
• Output Power: 795mW at 33ohm, 465mW at 300ohm, 235mW at 600ohm
• Sample Rate: 16-32 Bit
• Gain: 0=0dB, 10=10dB, 20=20dB

• Hi-Fi Companion For Your Mobile Devices
• 7.1 Virtual Surround Support
• Enhanced Audio Realism with SBX Pro Studio
• Powers High-impedance Headphones, with a Dual Gain Switch
• Dual Headphone Outputs
• High-Resolution Audio Playback

• On-Ear Closed-back headphone for iOS devices
• Audeze SINE World's First On-Ear Planar Magnetic Headphone
• Sleek contemporary design by BMW’s DesignWorksUSA
• Apogee Groove DAC
• Portable USB DAC and Headphone Amplifier for Mac and PC
•Enhances your iTunes, Pandora, Spotify, Tidal or other music listening experience
• Up to 24 bit / 192kHz audio

• On-Ear Closed-back headphone
•Audeze SINE World's First On-Ear Planar Magnetic Headphone
• Sleek contemporary design by BMW’s DesignWorksUSA
• Apogee Groove DAC
• Portable USB DAC and Headphone Amplifier for Mac and PC
• Enhances your iTunes, Pandora, Spotify, Tidal or other music listening experience
• Up to 24 bit / 192kHz audio

• Use With Mobile Devices, Tablets, And Laptops
• Boosts Volume And Reduces Battery Draining
• Increases Your Headphone's Bass
• Metal Casing With Belt Clip
• Built-In Rechargeable Battery
• Includes USB Charging Cable And Two 1/8" Stereo Cables
• Color: Black

• Up to 100 W Power (2 x 50 W @ 4 ohm)
• 5.1 Surround, with Dolby Digital Decoding
• Low Latency Wireless Audio, via Bluetooth 4.1
• Burr-Brown PCM1794 127 dB digital-to-analog converter (DAC)
• Up to 24-bit 192 kHz when connected to PC/Mac
• Extended 3-year Warranty
• Extended 180 Day Exchange Policy

• Desktop USB DAC
• 24-Bit/96 kHz
• TOCOS Volume Control
• Analog RCA, Digital Coaxial, and 3.5mm Outputs
• USB Bus Powered, 80 mA/5V

• Full-Featured Hard-Shell Case
• Compatible With iPhone 4/4S
• Built-In Battery to Extend Battery Life Up to 44 Hours
• Built-In Headphone Splitter and Amplifier
• White

• On-ear Professional Studio Monitor Headphones
• Portable Bluetooth Speaker
• Portable Headphone Amplifier

• USB Buss Powered Operation without AC Adapter
• Linear PCM Audio up to 24bit/192kHz and DSD Audio up to 5.6MHz Playback
• HI/LO Gain selection (10dB)
• USB Audio Class 2.0 on Windows XP

• Portable Headphone Amplifier
• Bass Enhancer
• Get Deeper Voice
• LightBar Display
• Connects to Portable Audio Device

• IEM Special Edition Portable Headphone Amplifier
• Op-Amp Combo for Low Distortion Audio
• Special Metal Film Resistors
• Optimized Sound Tuning
• Internal Rechargeable Battery

• Vacuum Tube Headphone Amp/DAC
• Uses 2 6J1 Vacuum Tubes
• Burr Brown PCM2702 DAC
• 2 Rear Inputs & Front 1/4" Headphone Jack
• Wired On-Ear Headphones
• Powder Coated Aluminum Housing
• Prestige Series
• Sensitivity: 99.8dB
• Vented Diaphragms

• High-end portable DAC / headphone amplifier
• DAC with up to 24 bit Resolution
• LED Display for Charging, Operation and Volume
• Integrated rechargeable Battery
• Up to 11 hours Operating Time

• Up to 100 W Power (2 x 50 W @ 4 ohm)
• 5.1 Surround, with Dolby Digital Decoding
• Low Latency Wireless Audio, via Bluetooth 4.1
• Burr-Brown PCM1794 127 dB digital-to-analog converter (DAC)
• Extended 3-year Warranty
• Extended 180 Day Exchange Policy

• Audiophile Grade Portable Headphone Amplifier
• Up to 14 Hours of Play Time with Built-In Rechargeable Battery
• DC Coupled Signal Path Ensures Low Noise with High Channel Accuracy
• Dual LDO Power Regulation Provides Ultra-Low Digital Noise
• Audibly Perfect Channel Balance Delivers Smooth Volume Adjustments & Consistency
• Primary Color: Red

• Selectable Bass Boost
• Front-Panel 1/8" Headphone Output
• Coaxial Digital Output
• 1/8" Line Output
• Micro USB Connector
• Charging Indicator For Added User Convenience
• Extended 180 Day Exchange