It’s a bit of a toy. There is no better device to allow you to really do a thorough cleaning AND protect the labels, Even better than record cleaning machines 10 times the price. T2 phono preamplifier with a tube output stage offers unrivalled performance and unique flexibility at an incredibly affordable price. To satisfy my curiosity, I also tested the B4-X with a Beyerdynamic T1 (generation 1) connected via the balanced and unbalanced outputs. ** Burson lifetime warranty covers all Burson Opamps purchased directly from Burson Audio ONCE it is registered here Burson Warranty within one month of purchase. There is little to no discernable difference between the connections. Nobsound NS-DAC3Pro is a high performance Bluetooth DAC Headphone AMP designed by Douk Audio Studio, which can provide much better sound quality than normal sound cards. Unfortunately, the B4-X does not support USB charging, so the charger must be packed for longer trips. They produce a wide range of stereo amplifiers, headphone amplifiers, DACs, phono stages and preamps, with an emphasis on vacuum tube components. Douk Audio rates the B4-X adequate to drive 300Ω headphones, while they rate the B4 only for up to 200Ω headphones. Gorilla glue to the rescue. I’m not really surprised at this price point, but it does make me wonder if the Douk Audio B4 might be the better value. Perhaps the tubes settled in and improved. The B4-X actually sounds quite good. Designed by Douk Audio Studio, it is a powerful and affordable Hi-Fi headphone amp featuring an anodized aluminum chassis and top mounted vacuum tube with blue illumination. A fine audio pairing and the DIY-retro-cool aesthetic of both products is complimentary. ョッピング!ランキングや口コミも豊富なネット通販。更にお得 … Mini size can give you warm tube sound, alluminum chassis with charming tube light and Hi-end terminal. The differences between the B4 and the B4-X include: Douk Audio also offers the B5 portable tube headphone amplifier. The B4-X is just barely powerful enough to drive these 300 Ohm headphones. Yes, yes… solid-state amp fans, I hear you… it IS a tube amp… I know! Let’s get to the question of the day. I’m also unapologetically a gear-head and love lights, buttons, meters, switches and especially things made from traditional wood, leather, metal and glass materials. In the end, I don’t regret my purchase. What’s better for you likely depends on how difficult your headphones are to drive. Heck, it’s a $100 tube amp that you can put in your pocket and use to warm up your hands. Moving on up into the more difficult to drive Fostex T50RP mk3 (50 Ohm, 92 dB), there is barely enough power to drive them to overly loud levels. The ‘made-in-USA’ Raytheon JAN5899 tubes are soldered to the board (so alas, no easy tube rolling for you adventurous DIY folks). Can handle 500w RMS for each channel. With my B4-X, the right channel is ever-so-slightly louder than the left channel. With optical / coaxial / USB inputs and RCA / 3.5mm / 6.5mm outputs. It’s not significantly louder, nor does the balanced output appear to yield any sonic improvements. Required fields are marked *. Two input modes and switch freely: users can choose 3.5mm jack or RCA jack input with 3.5/RCA selector.Double volume control and one mute button: with 4 independent volume controls, 4 users can enjoy the same sound source but with different volumes. Get your monthly roundup of our best articles right straight to your inbox. The Sennheiser HD58X is a 150 Ohm, 104 dB open-back headphone. Perhaps I simply adjusted to the sound. The B4-X isn’t the only portable tube headphone amplifier option currently available from Douk Audio. The T1 sounded remarkably pleasant powered this way. Wir besitzen mehrere Marken, darunter Douk Audio / Nobsound / Little Bear usw. The company motto is to “make Hi-Fi affordable” by following the rules of (in their words) “quality-oriented, customer-centered and constant innovation”. This is a review and detailed measurements of the Nobsound MC-103 Pro 3-IN-1-OUT XLR Audio Switcher. This leads me to believe it may have been a grounding issue with the iFi/Macbook source combo. But I do have a deep appreciation for music, founded at a young age, and curated over the years. As with everything, take it for what it is: this is just one person’s opinion. The OpAmp chip is non-replaceable in the B5 model. “In the end, I don’t regret my purchase. It picks up nearby cell phone wireless noise and interference. This is the newest version of the MC102 which has the extra in/out port at the back so that all three connections can be there (with nothing connected on the front). To suffice warmer than transistor products are soldered to the owner phono preamp is for... 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