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B08H7N7NN6 Price: $149 Score: 1000.000 Category: Electronics Rating: 4.4 Votes: 36 Find similar products Linsoul Topping L30II NFCA HiFi Headphone Amp Preamplifier with 3 Gain Settings, HPA/RCA/6.35mm Output, RCA Input, Volume Knob Control for Audiophile Musician (Blue). L30 II Amplifier Specifications THD+N@1khz(a-wt): <0.00006%@ Output=500mW(32Ω) ; <0.00005%@ Output=80mW(300Ω) THD @20-20KHZ 90KBW: <0.00008%@ Output=500mW(32Ω) ;<0.00007%@ Output=80mW(300Ω) SNR@ MAX OUT 1KHZ(a-wt): 144dB Dynamic Range@ 1KHZ(a-wt): 144dB Frequency Response: 20Hz-40kHz(± 0.05dB) Output Level: 14Vpp@ G = L; 31Vpp@ G = M; 37Vpp@ G = H AP measured noise level (a-wt): <0.7uVrms@ G = L; <0.7uVrms@ G = M; <1.5uVrms@ G = H Actual noise level * (a-wt): <0.3uVrms@ G = L; <0.3uVrms@ G = M; <1.4uVrms@ G = H Channel Crosstalk@ 1KHZ: 92dB Input sensitivity: <25Vrms@ G = L; <11.2Vrms@ G = M; <2.0Vrms@ G = H Gain: <-14.0dB@ G = L; <0dB@ G = M; <16.5dB@ G = H Output Impedance: <0.1Ω Output Power: 3500mW x2@ 16Ω THD+N<0.1%; 2700mWx2@ 32Ω THD+N<0.1%; 2000mW x2@ 64Ω THD+N<0.1% 560mW x2@ 300Ω THD+N<0.1% Load Impedance: >8Ω L30II Pre-Amplifier Specifications THD+N @1kHz (a-wt): <0.00006% THD @20-20kHz 90kBW: <0.00007% SNR @MAX OUT 1kHz (A-wt): 144dB Dynamic Range @1kHz (A-wt): 144dB Frequency Response : 20Hz-40kHz (± 0.05dB) Output Level: 14Vpp @G=L 31Vpp @G=M 37Vpp @G=H AP measured noise level (a-wt): <0.7uVrms @G=L <0.7uVrms @G=M <1.5uVrms @G=H Actual noise level* (a-wt): <0.3uVrms @G=L <0.3uVrms @G=M <1.4uVrms @G=H Channel Crosstalk @1kHz: -92dB Input sensitivity: 25Vrms @G=L 11.2Vrms @G=M 2.0Vrms @G=H Gain: -14.0dB @G=L 0dB @G=M 16.5dB @G=H Output Impedance:20Ω What’s in the Package? -1 x L30II -1 x AC adapter -1 x 6.35mm to 3.5mm converter jack -1 x Warranty card -1 x User manual Product Size：3.2cmx10.0cmx13.5cm.	B07L5CRQ7T Price: $649.76 Score: 9.709 Category: Electronics Rating: 4 Votes: 18 Find similar products Reisong - BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter. You should take about 30-100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. Specifications: Output Power: 8W * 2 (Ultra-linear connection) Frequency response: 20Hz-35KHz Output Impedance: 4,8Ω Total harmonic distortion: ≤ 1% (1kHz) Input Sensitivity: 750MV Input impedance: 100KΩ (three sets of input signal) Voltage amplification: Dawn 6J8PJ × 2. Power output tube: KT88 × 2. Rectifier tube: 5Z3PA-T × 1 Dimensions (W×D×H): 366×300 (including knob) × 185mm SNR: 89dB Weight: about 16.5 kg (114 power transformers, export version) Gross weight: 18kg Power Supply Voltage: AC 110V-120V/50Hz-60Hz(For United States） Features: With power tube current monitoring circuit, tube replacement upgrade ease. Medical grade 5Z3PA-T rectification. Imported 0.35 core output amplifier audio dedicated core, core stack thickness 86-50, A20 flux of 13,000 Output transformer potting techniques, ensure that the output of the amplifier stability and reliability Double chassis design，not easy deformed. Output amplifier with a new imported 0.35 core manufacturing, high-purity copper wire package enameled, layered segmentation, string and connection method Imported 0.35 thick core manufacturing power amplifiers Output amplifier with high-grade stretch amplifier housing cover. Power Transformers: new imported 0.35, stack thickness 60MM (114-60). Output amplifier core: core 0.35 new imported thick high silicon (86-50). Japanese production of ALPS potentiometer. Chassis: mirror stainless steel chassis.
B08931PJD3 Availability: Currently unavailable Score: 8.772 Category: Electronics Rating: 4.3 Votes: 18 Find similar products Fanmusic Topping A90 Headphone Amplifier 4.4mm XLR Desktop HiFi Full Balanced Amplifier Pre-Amplifier Black. Full balanced + SE headphone output---A90 has three output headphone jacks of 4-pin-XLR，4.4 balanced and 6.35 SE to meet different usages. A90 is provided with a wide range of adaptation to headphones.---The SE 25Vpp / balanced 49Vpp high output voltage along with high output current & less than 0.1 Ohm output impedance, A90 is equipped with three gain settings of -9.5dB/ 0dB / 9.5dB for SE and -35dB / 6.0dB / 15.5dB for balanced. The noise of merely 0. 2uVrms makes A90 easily adapt to all types of headphones from extremely sensitive IEMs to most power demanding full sized over-ears. It's a great companion of active monitors stacked with D90 DAC when A90 work as pre-amp application. Contents list: A901 AC cable1 6.35mm to 3.5mm connector1 User manual1.	B01K2ONK5U Availability: Currently unavailable Score: 8.696 Category: Electronics Rating: 5 Votes: 2 Find similar products POLSEN HMA-41 4-Channel Stereo Headphone Amplifier. The HMA-41 4-Channel Stereo Headphone Amplifier from Polsen features a durable, compact, and easy to use design for a variety of professional and project applications, including studio recording, band rehearsals, and more. It features a high-output level that allows for precise monitoring at high volume, while its low-noise circuitry ensures clear reproduction of your sound. Each of its four channels boasts independent volume control and amp circuitry, which allows for a wide frequency response of 20 Hz to 20 kHz for full-range stereo sound while assuring no signal loss when all 4 headphone outputs are used simultaneously. The unit features a 1/4 stereo TRS input, and four 1/4 TRS headphone outputs. To assure compatibility with a variety of headphones, Polsen includes four 1/8 to 1/4 adapters as well as a stereo mini cable that, when used with one of the included adapters, allows you to connect a device with a 1/8 output. Durable, compact, and easy to use High output level for precise monitoring at high volume Low noise circuitry Four headphone jacks each with independent volume control Wide frequency response (20 Hz to 20 kHz) for full-range stereo sound No loss of signal when all four headphones are connected Includes 5 ft (1.5 m) stereo mini cable for connecting devices with 1/8 output (use included 1/4 adapter) SPECIFICATIONS Channels: 4 Frequency Response: 20 Hz to 20 kHz Input Connections: 1x 1/4 (6.3 mm) TRS master input Output Connectors: 4x 1/4 (6.3 mm) TRS headphone outputs Maximum Input Level: +14 dBV Maximum Output Level: 20 dB per channel Input Impedance: 100 kΩ, unbalanced Output Impedance: 51 Ω, per output Signal to Noise Ratio: >90 dB THD: <0.008% Power: 12 V DC, 150 mA Dimensions (L x W x D): 3.9 x 3.2 x 1.2 (100 x 80 x 30 mm) Weight: 9.6 oz (272 g).
B07GLZZS3G Price: $15.88 Score: 8.000 Category: Electronics Rating: 4.8 Votes: 15 Find similar products LM4562NA/NOPB LM4562NA LM4562 Dual High-Performance Audio Operational Amplifier with Ultra Low Distortion IC (Pack of 2). The LM4562 is part of the ultra-low distortion, low-noise, high-slew-rate operational amplifier series optimized and fully specified for high-performance, high-fidelity applications. The LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LM4562 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LM4562 has a high slew rate of ±20V/µs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads. The LM4562's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.1mV) give the amplifier excellent operational amplifier DC performance. The LM4562 has a wide supply range of ±2.5V to ±17V. Over this supply range the LM4562’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LM4562 is unity gain stable. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF.	B07N84LSTP Availability: Currently unavailable Score: 7.937 Category: Electronics Rating: 5 Votes: 4 Find similar products S.M.S.L DA-8 50W*2 Amplifier 2.0 Channel Class D Hi-Res Desktop Digital Power Amplifier. Remote control: Note 1. This remote controller use 2 x R03/AAA battaries; 2. When you first operate SU-8,press the A key first SPECS: Inputs: Stereo inputx2 THD+N: 0.002% SNR: 108dB Channel separation: 102dB Output power:50Wx2(4Ω)/40Wx2(8Ω) Power consumption: 40W Standby power: <0.1W Volume: 185x46x125mm (WxHxD) Weight: 1kg.
B07QN7PHDM Availability: Currently unavailable Score: 7.813 Category: Electronics Rating: 4.4 Votes: 470 Find similar products 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) Weight: 1.5 kg or 3.3 lbs. Available in Black Available in either 120VAC or 220VAC.	B07S96P4ZH Price: $31.99 Score: 7.813 Category: Electronics Rating: 4.2 Votes: 1258 Find similar products Lepy LP-2020A Class-D Hi-Fi Digital Amplifier with Power Supply Black. Product Features: Aluminum enclosure: Light weight, sturdy and stylish high-end appearance Built-in loudspeaker protection circuit triggers when the amplifier is turned on to protect speakers from high volume bursts of audio Power monitoring protection circuit: Output will be cut off when input voltage exceed 14.4 Volts DC or overheat etc Reduced signal interference and offer long operation life: State of the art design using surface mount components and advanced engineering for proven performance Cost effective: Low price and high performance, great for projects and DIY audio applications Product Specifications: - Brand: Lepy - Input power:DC10-14.4V - Output power:20wx2 RMS - Weight: 360g - Load impedance:4-8Ω - Frequency response:20Hz-20Khz - Total harmonic distortion:＜0.4% - SNR:>80db Package Content: ✮ 1x LP-2020A Digital Amplifier ✮ 1x User Manual ✮ 1x Power Supply.
B09WMYJZ3Y Availability: Currently unavailable Score: 7.813 Category: Electronics Rating: 4.4 Votes: 73 Find similar products SMSL HO100 Balanced Headphone Amplifier 3000mW×3000mW RCA/XLR Input 6.35mm/4.4mm Balanced Headphone Output HiFi Home Audio Headphone Amp with Gain Control. .	B00A2QKUES Availability: Currently unavailable Score: 7.752 Category: Electronics Rating: 3.6 Votes: 80 Find similar products Bravo Audio V3 Tube Headphone Amplifier EQ Equalizer. First time for sale in the U.S from authorized bravo audio distributor.Warm powerful Tube sound Russian EH 6922 with 3 Band Graphic Equalizer, Passive EQ employed/very low noise, 24V DC input, safe voltage. Affordable price regarding competitive units and built to last. This is the new Bravo Audio BRAVO 3 CLASS A TUBE DRIVEN HEADPHONE AMPLIFIER WITH EQ CONTROL! Bravo Audio has been making some waves with their line of Tube powered line headphone amps as well as the Tube powered guitar Booster (please see my other posts for other Bravo Audio offerings). Bravo Audio gives you the warmth of a tube in a unique little package. Bravo Audio has been talked about in Audiophile blogs and forums recently and this offering is for the Bravo 3 which features an 12AU7 Russian EH 6922 Tube along with a Graphic slide EQ section and other performance features normally found in much more expensive Audio products. In this age of MP3's and compressed digital music files, a lot of what the artist intended you to hear from the original master tapes on have been lost with thin sound replications of the original sound. With the warmth and power of the tube driven Bravo Audio lineup, many of these lost frequencies will come to life through a good pair of headphones to match it with. Hear what you have been missing in your favorite music! Very cool little unit! Features: Russian EH 6922 Tube Amplifier. Sweet powerful Tube sound. 3 Band Graphic Equalizier. Passive EQ employed. Very Low Noise. 24V DC input, Safe Voltage. Affordable price, Long Life. Technical specification: In Put Power: DC24V Input Sensitivity: 100mV Out-Put Impedance: 20~600 Ohm Gain: 28dB Freq. 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) There is NO OP amp or IC in this circuit, which can introduce unexpected distortion to the sound. Great sounding little amp!.