High reliability: This portable headphone amplifier is made of high-quality materials, which can be used for a long time. it has excellent performance and good reliability.Great seller communication: If you have any questions about the sound quality, please feel free to contact us, we will try our best to solve it for you.Durable & built to last: Made from heavy-duty steel, this portable headphone amplifier is built to last. it features a durable rubber housing and an extra long-lasting...

Features: 1. Pure handmade 2. Bias testing points and regulators added on the top side 3. Two special handmade wide frequency response EI audio transformers 4. Special handmade low magnetic leakage toroidal power transformer 5. 12AX7 x 2 and 12AU7 x 2 for preamp 6. The power amplification uses JJ EL34 x 4 for class AB1 push-pull power amplifier. 7. EGG silicon cores, high-purer 4N winding wire 8. Special interlocked winding coiling process 9. High end Nichicon capacitors and audio choke coil...

Basic product specifications CPU model Qualcomm Snapdragon 660 Operating system Android 9.0 DAC AK4493SEQ Screen 5-inch full HD TFT display screen Weight About 9.1KG Appearance size 440*392*107mm(W*D*H) Maximum power consumption 30W  Pre amplifier output RCA single end Maximum output level High gain  10KΩ 7.0Vrms Medium gain 10KΩ 3.5Vrms Low gain 10KΩ 1.7Vrms Frequency response ...

Product parameters: Rated output power: STD unbalanced output: 400mW+400mW(L); 600mW+600mW(M): 700mW+700mW(H) 4.4BAL balanced output: 230mW+230mW(L); 350mW+350mW(M); 400mW+400mW(H) 4PIN BAL balanced output: 600mW+600mW(L): 750mW+750mW(M): 850mW+850mw(H) Frequency response: 18Hz~30kHz±3dB Total harmonic distortion: 0.2% (1kHz, 200mW; rated output power less than 5%) Sensitivity: 300mV~480mV Signal-to-noise ratio: 100dB (A-weighted) Headphone impedance matching: L: 8~64Ω; M:...

Features 1. Noble and elegant appearance, with the same style of opera series 2. High-quality EI power transformer, using high and low voltage independent dual power supply design to reduce mutual interference 3. Linear amplification adopts selected matched FULL MUSIC ceramic gold foot 6SN7 electron tube 4. It adopts Russian SOVTEK 5AR4 rectifier tube for rectification, and EH6V6GT electron tube acts as a high-voltage regulator circuit, cooperates with choke coil input circuit, eliminates the...

1. Cayin had been producing high quality, high value vacuum tube amplifier over the years, following the same tradition, and now 0043ayin introduces the new reference M-845D Amplifier. This newly improved amplifier is equipped with multiple feedback selection to accommodate most pre-amplifier for effortless integration. 2. The M-845D sounds big, muscular and strong with real life presentation, beautiful decay and dimensional ease. There is a remarkable degree of detailed emotional intensity....

Features: 1. Simple and generous appearance 2. Aluminum alloy wire drawing panel 3. Elegant VFD dynamic display 4. CIRRUS LOGIC CS4398 chip of the digital D/A conversion 5. Complete digital signal output, Include optical and coaxial digital signal output 6. The low-pass filter circuit adopts high quality audio special OP Amp 7. High quality low magnetic leakage EI power transformer 8. Full IR Remote control Specifications: Tube: 6922EH×2 Output Level: 2.0V RMS Frequency response:...

Features: 1. Simple and generous appearance 2. Aluminum alloy wire drawing panel 3. Elegant VFD dynamic display 4. CIRRUS LOGIC CS4398 chip of the digital D/A conversion 5. Complete digital signal output, Include optical and coaxial digital signal output 6. The low-pass filter circuit adopts high quality audio special OP Amp 7. High quality low magnetic leakage EI power transformer 8. Full IR Remote control Specifications: Output Level: 2.0V RMS Frequency Response: 20Hz~20kHz ±0.5dB...