• ASUS Sound Card Essence STX II

    Four years after the debut of Essence STX - the long-term holder of the number-one position in Head-Fi's Sound Cards segment, as voted by highly-satisfied users globally - ASUS remains committed to delivering ever better high-end sound cards to delight the most demanding audiophiles. Drawing on years of experience in developing Essence One, Essence STU and Essence III, Essence STX II delivers meticulous design, quintessential performance and profound musicality - elements that shape the spirit of the whole Essence Hi-Fi series.

    • ASIN: B00ONSBF4K
    • UPC: 801940483034
    • ASIN: B00ONSBF4K
    • Brand: ASUS
    • Manufacturer: Asus

  • Nobsound Mini Dual TPA3116 Digital Power Amplifier HiFi Stereo Amp Audiophile-Grade 2.0 Channel 100W×2 NE5532P Pre-Amp (Black)

    Power supply: Power range: 8-25V (compatible with most laptop power supplys) Interface:outer diameter 5MM,inner core 2.1MM We recommend using 17-22V power supply. Power supply voltage: 12V ------- 8 Ohm speaker / 12W (left channel) + 12W (right channel), 4 ohm speaker / 20W (left channel) + 20W (left channel) 15V ------- 8 ohm / 18 + 18W, 4 ohm / greater than 30 + 30W 19V ------- 8 ohm / 32 + 32W, 4 ohm / greater than 45 + 45W 24V ------- 8 ohm / 38 + 38W, 4 ohm / greater than 55 + 55W Parameters: Brand: Nobsound Color: Black Chip: TPA3116D2 ×2 OP-amp: NE5532P Max. output power: 100... [Read More]

    • ASIN: B07548PWQQ
    • ASIN: B07548PWQQ
    • Brand: Nobsound
    • Manufacturer: Nobsound

  • Vacuum Tube Headphone Amplifier Tube Amp Mini Hi-Fi Stereo Audio Preamplifier with Low Ground Noise Output Protection for Headphones - Fosi Audio P2

    Specifications: Tubes: 6J4 × 2 OP-amp: NE5532 Audio Input: 3.5mm Audio jack, Stereo L / R RCA Audio Output: 6.35mm Headphones Maxpower output: 600 mW / 62Ω, 900 MW / 32Ω, 1 W / 16Ω Frequency range: 20Hz-20 kHz (± 3dB) THD: ≤0, 03% Matching headphone impedance: 32-600 Ω NR: ≥ 95db Operating voltage: DC12V Input sensitivity: 0.2mV Dimension: L99 * W98 * H33 mm Net weight: 0.25 kg Model direct replacement tube: 6j1, 6AK5, EF95, 5654, 403B etc. Packing List: 1 * headphone amplifier 2 * 6J4 vacuum tubes 1 * DC 12V Power Supply 1 * 6.35mm to 3.5mm Adapter Tips: 1. When you use this product... [Read More]

    • ASIN: B07RQTKVM1
    • ASIN: B07RQTKVM1
    • Brand: Fosi Audio
    • Manufacturer: Fosi Audio

  • FiiO E10K USB DAC and Headphone Amplifier (Black)

    The E10K USB DAC high resolution Headphone Amplifier from Fiio is customizable and designed to improve your laptop's audio output quality via its PCM5102 DAC chip and is capable of handling PCM files in up to 24-bit, 96 kHz resolution. It features a selectable bass boost and low-pass filter, both with circuitry optimized for a low noise floor when engaged, allowing you to customize the sound of your audio to your tastes.The unit connects to your laptop via its Micro USB connection, which also provides it with power. It offers a variety of connections, including a front-panel 1/8\" headphone ja... [Read More]

    • ASIN: B00LP3AMC2
    • UPC: 701980441950
    • ASIN: B00LP3AMC2
    • Brand: FiiO
    • Size: regular
    • Manufacturer: FiiO

  • Syba Sonic SD-DAC63106 Stereo 3 Band Tone Control Pre-amp and Headphone Amplifier

    The SYBA SD-DAC63016 3 band tone control Pre-Amp with built in headphone amplifier is different from many audiophile designs for its unique 3-band "Tri Tone" equalizer while most of the Hi-Fi equipment has forgotten for many years. The Tone Control allows the audiences to master their song back to "Original" even they are playing with a lower quality MP3 files on a middle-end earphone, or they might enhance different parts of frequency range; high tones (Treble), mid-range (Middle), low frequency (Bass), in order to suit their personal taste for different kinds of music, such as, Classic, Jazz... [Read More]

    • ASIN: B00TYYMHQS
    • UPC: 804904085770
    • ASIN: B00TYYMHQS
    • Brand: Syba
    • Size: NA
    • Manufacturer: Syba

  • Tascam US-4x4 USB Audio/MIDI Interface with Microphone Preamps and iOS Compatibility

    TASCAM's US-4x4 combines great audio quality and ergonomic design for a powerful 4-in/4-out USB 2.0 interface. Four of TASCAM's Ultra-HDDA mic/line preamps provide up to 57dB or gain with nearly inaudible noise and distortion specs. The audio design features high-performance, musical components like NE5532 op amps for rich sound quality without coloring the source. The US-4x4 is powered through its USB 2.0 connection or an optional power adapter. Driverless operation is possible for plug-and-play operation on Mac OSX and iOS devices like the iPad, and a simple driver adds ASIO compatibility fo... [Read More]

    • ASIN: B00MIXF1JW
    • UPC: 490703412444
    • ASIN: B00MIXF1JW
    • Brand: Tascam
    • Size: US-4X4
    • Manufacturer: Tascam

  • TOPPING D10 Mini USB DAC CSS XMOS xu208 es9018k2m opa2134 Decoder Audio Amplifier

    Measured:10.3cm x 14.6cm x 3.7cm Weight:314g Power supply:DC5V/0.5A IN:USB Digital output:Digital output Digital output:AUX LINE OUT RCA LINE OUT RCA: SNR:115dB at 1kHz Frequency Response:20Hz-20kHz(0.1dB) OutPut Level:2Vrms@0dBFS Noise: Crosstalk:-115dB @1kHz Balance:0.1dB Output Impedance:100ohms USB IN:44.1kHz-384kHz/16Bit-32Bit、DSD64-DSD256(Native) OPT/COAX OUT:44.1kHz-192kHz/16Bit-24Bit

    • ASIN: B07B46KQVP
    • UPC: 651312006992
    • ASIN: B07B46KQVP
    • Brand: Topping
    • Size: D10
    • Manufacturer: TOPPING

  • Little Dot I+ 6JI X2 Tube Standard Hybrid Headphone Headphone Amp Pre-Amp Tube Amplifier (LDI+)

    Input: Gold Plated Unbalanced (RCA) Jacks Output: 1/4" Gold Plated Stereo Headphone out Tube Options: 6JI standard Frequency Response: 10HZ ~ 50KHz (minus3 dB) THD plus N: 0.2 percent: 1Vrms @ 1000Hz 0.6 percent: 3Vrms @ 1000Hz 1.0 percent: 5Vrms @ 1000Hz Signal to Noise: 92dB Suitable Headphone Impedance: 8 ~ 600 ohms Input Impedance: 50K ohms Power Output: 150mW @ 300 ohms 300mW @ 120 ohms 800mW @ 32 ohms User variable gain settings: 6.5x or 3.25x Power Consumption: 15VA Measurements: Metric: 180mm (L) by 97mm (W) by 100mm (H) English: 7.08 inches (L) by 3.81 inches (W) by 3.93 inches (H) We... [Read More]

    • ASIN: B00A2QM5O6
    • UPC: 790996171524
    • ASIN: B00A2QM5O6
    • Brand: AIMPIRE
    • Size: 10
    • Manufacturer: AIMPIRE

  • Fiio E17K ALPEN 2 USB DAC Headphone Amplifier

    The FiiO E17K is a portable headphone amplifier and digital to analog converter (DAC). The E17K has a built in rechargeable lithium battery and USB charger, allowing you to charge on your PC or with a USB adapter. The E17K has fewer buttons on the front than that of its predecessor the E17. The FiiO E17K has a new multi-functional wheel that responds to both turns and clicks, providing an intuitive agile control replacing many buttons from the older model. The all-new E17K Utilises the SA 9027 USB receiver, allowing the E17K to be used as an external sound card for your computer. This suppor... [Read More]

    • ASIN: B00RPD7KP8
    • UPC: 091037936936
    • ASIN: B00RPD7KP8
    • Brand: FiiO
    • Manufacturer: Fiio

  • TOPPING D30 DSD Audio Decoder USB Coaxial Optical Fiber XMOS CS4398 24Bit 192KHz Decoder

    TOPPING D30 DSD Audio Decoder USB Coaxial Optical Fiber XMOS CS4398 24Bit 192KHz Decoder

    • ASIN: B06XKS9W8T
    • UPC: 606034991781
    • ASIN: B06XKS9W8T
    • Brand: Topping
    • Manufacturer: Topping

  • Bravo Audio V1 Tube Driven Headphone Amplifier

    Input power: DC24V. Input sensitivity: 100mV. Input impedance: 100KOhm. Output impedance: 20~600 Ohm. Gain: 30dB. Frequency response: 10Hz-60KHz +/- 0.25dB. Signal/noise ratio: >90dB . Dynamic range: 84.6dBA(300 ohm) 89.8dBA(33 ohm). THD: 0.016%(300 ohm) 0.45%(33 ohm). IMD + Noise: 0.045(300 ohm) 0.42(33ohm). Dimension:79mm (D) X 79mm (W) X 44mm (H)not measure to tube and transformer. Shipping weight: 600 g.

    • ASIN: B00A2QKTLW
    • UPC: 610027012650
    • ASIN: B00A2QKTLW
    • Brand: Bravo Audio
    • Manufacturer: Bravo Audio

  • Nobsound 2 Channel Bluetooth 4.2 Amplifier , Class D Stereo Audio Amplifier , Mini Home Theater Power Amp , Digital Power Amplifier Receiver , 200W (100W x 2) , Treble & Bass Control (NS-15G)

    Parameters: Brand: Nobsound Color: black Chip: TPA3116*2 OP-amp: NE5532 Size: 90 * 108 * 36 mm / 3.54 * 4.25 * 1.42 in Net Weight: 355 g / 0.78 lb Output Power: 200W (100W * 2) Channel: 2.0 Power Range: DC12V-24V THD: ≤ 0.5% SNR: ≥ 95dB Frequency Range: 10Hz -40kHz Packing List: 1* Digital Power Amplifier 1* Power Adapter

    • ASIN: B07DPKSKVQ
    • ASIN: B07DPKSKVQ
    • Brand: Douk Audio
    • Size: Bluetooth 4.2
    • Manufacturer: Nobsound

  • Subwoofer Amplifier Receiver 100Watt Mini Hi-Fi Digital Class D Integrated Stereo Audio Amp for Sub Bass + Power Supply TP-01

    Quick tips:1. Please plug the power cord into the amp THEN the wall, plug the audio cables into amp THEN switch on.Some customers may see some slight sparks flying when they plug the power supply into the amplifier, because they use it in wrong way, you need to connect the amp to the power supply first, then plug the power supply into the 110v AC outlet, don't worry about the sparks, because this is class d amplifier, the capacitors need to charge when the power in, it's normal and safe.Parameter: 1. Power supply range: 12v-24v; 2. THD: ≤ 0.04%; 3. Frequency Range: 20Hz - 120Hz (±1 dB); ... [Read More]

    • ASIN: B07942M4MC
    • ASIN: B07942M4MC
    • Brand: Fosi Audio
    • Manufacturer: tp-01

  • ONKYO Portable Headphone Amplifier DAC Equipped with Black DAC-HA200(B) [Japan Impot]

    Portable headphone amplifier Onkyo's first music of your favorite high resolution sound source to play high-definition. And continue to have the desire to want to deliver more and more people the sound leading to the impression, Onkyo, we have been developing audio products of high quality for over 60 years. And we have a full-scale entry into the original headphone product concept, bring out the sound quality of the "Audio On the GO"-Hi-Fi audio in the last year. In addition, we announced music app where you can enjoy high-quality music to an iOS device as a new portable suggest "HF Player". ... [Read More]

    • ASIN: B00L5H6B3C
    • ASIN: B00L5H6B3C
    • Brand: Onkyo
    • Manufacturer: ONKYO

  • Linkwitz-Riley 2-Way Active Crossover, Fully Assembled [XOVER-2] (Unbalanced)

    Bi-Amping your speakers is the single most powerful, low cost, and simplest way for audio enthusiasts to reach the realm of true audiophile quality. The XOVER-2 is a board level product ~ but if you're looking for a fully integrated plug-n-play active crossover, check out the K231 Stereo 3-Way Active Crossover 2-way Active Crossover - Splits the highs and lows for separate woofer and tweeter amplifiers Fully assembled and tested Audiophile grade Burr-Brown op amps, OPA1654 with 0.00005% THD+N Uses high precision filter components for ultra low distortion and pinpoint XO frequency: Metal film r... [Read More]

    • ASIN: B00FD21I4C
    • UPC: 712392628747
    • ASIN: B00FD21I4C
    • Brand: Xkitz Electronics
    • Manufacturer: Xkitz Electronics

  • Blue Ella Planar Magnetic Headphones with Built-In Audiophile Amp

    Experience detailed, maximum-impact sound Ella is the only headphone that combines the transparent detail of planar magnetic drivers with the impact of dynamic technology to deliver awe-inspiring sound quality and intense emotion. Ella maximizes the

    • UPC: 178808169
    • Model: ELLA
    • Color: Silver

  • BeyerDynamic T1 Second Generation Audiophile Stereo Headphone with A2 Amp Bundle

    E4BEYT1GEN2 T1 Second Generation Audiophile Stereo Headphone3-pole mini stereo jack (3.5 mm) & 1/4 adapter (6.35 mm)Hard CaseWarrantyBundle Includes:BeyerDynamic T1 Second Generation Audiophile Stereo HeadphoneBeyerDynamic A2 Headphone AmplifierSlappa HardBody PRO Full Sized Headphone Case (Black)64GB

    • UPC: 181953645
    • Model: 718998
    • Color: WhiteBlack

  • Creative Sound Blaster ZxR PCIe Audiophile Grade Gaming Sound Card with High Performance Headphone Amp and Desktop Audio Control Module

    Creative Sound Blaster ZxR PCIe Audiophile Grade Gaming Sound Card with High Performance Headphone Amp and Desktop Audio Control

    • UPC: 427119424
    • Model: MODB00AQ5PK6I

  • Best Audiophile Oldies

    An Audiophile Lovers Dream Release! Containing 20 oldies from such well known and beloved artists as Harry Belafonte, Nat King Cole, Johnny Mathis, the Everly Brothers, the Kingston Trio, Andy Williams, Pat Boone etc. Includes

    • UPC: 55889238

  • Blue Satellite Premium Wireless Noise-Cancelling Headphones with Audiophile Amp (Black)

    THE NEW BENCHMARK FOR WIRELESS LISTENING For 20 years, the world’s greatest artists have used Blue in the studio. Now we’ve created a wireless over-ear headphone that lets you hear more of your favorite music,

    • UPC: 153236382
    • Model: SatelliteBlackUS
    • Color: Black

  • Blue Satellite Premium Wireless Noise-Cancelling Headphones with Audiophile Amp (White)

    THE NEW BENCHMARK FOR WIRELESS LISTENING For 20 years, the world’s greatest artists have used Blue in the studio. Now we’ve created a wireless over-ear headphone that lets you hear more of your favorite music,

    • UPC: 986753726
    • Model: Satellite White US
    • Color: White

  • Best Audiophile Voices, Vol. 1

    A collection of sultry female vocalists featuring a repertoire of sophisticated styles. The selection of the 14 tracks on this album will bring the listener an eclectic mix of familiar and evocative songs. Features the

    • UPC: 55892823

  • PKPOWER 6ft/1.8m UL Listed AC Power Cord for Ernie Ball Music Man HD-500 Audiophile Bass Systems Head Amp

    This products from PKPOWER is specially designed to meet the power needs of your device. It will enables you to simultaneously operate your device and charge its battery (if applicable) from any standard electrical power

    • UPC: 114657555

  • UPBRIGHT NEW AC Power Cord For Ernie Ball Music Man HD-500 Audiophile Bass Systems Head Amp

    UPBRIGHT NEW AC Power Cord For Ernie Ball Music Man HD-500 Audiophile Bass Systems Head

    • UPC: 534644499

  • Groove Note - True Audiophile: Best of Groove Note [SACD]

    Groove Note - True Audiophile: Best Of Groove Note (SACD NEW)Label: Groove NoteFormat: SACDRelease Date: 15 Aug 2006No. of Discs: 1UPC: 660318103635DetailsDISC 1:1. Boulevard of Broken Dreams - Jacintha2. Stormy Monday - Jacintha3. Meditation -

    • UPC: 148649589

  • About op-amps part 2: audio test

    Burson V6 Opamps Audio Review

    Next Level Sound - Burson V6 Opamps Audio Review