Full volume is tolerable but too loud for my tastes. I own both balanced and unbalanced cables for this headphone and for its older brother the HD650 (300 Ohm, 103 dB). T3 phono preamp is designed for home MM(moving magnet) turntable record players to convert phono signals to line level signals. ã§ããã³ã°ï¼ã©ã³ãã³ã°ãå£ã³ããè±å¯ãªãããé販ãæ´ã«ãå¾ â¦ Letâs get to the question of the day. Bluetooth 5.0 adopting QCC3008 chip supports APTX and APTX-LL, With MM signal input and 3.5mm AUX input(with priority), can be used as a MM phono preamp and a tube preamp, compatible with many audio devices such as MM record player, phone,TV, MP3 players, CD players, DAC, computers etc. It picks up nearby cell phone wireless noise and interference. Unfortunately, battery and charging issues are reported on Amazon. After printing I found that ⦠Gfj554 Douk Audio Nobsound Little Bear Crossover Network Stereo (67.2% similar) No external power required nobsound little bear Audio crossover network stereo 2-way amplifier ⦠Your email address will not be published. Battery life and durability are also reportedly improved. P2 can be used as a tube preamp, connected between audio source and amplifier or active speaker to greatly improve the sound quality. You must remember that the low price point comes with a number of compromises. The âmade-in-USAâ Raytheon JAN5899 tubes are soldered to the board (so alas, no easy tube rolling for you adventurous DIY folks). *** 2 & 1 years ⦠MKIII is the upgrade version of our popular MKII. So enough of all that volume info. Devices that would likely never get manufactured anywhere else. I got my nobsound douk audio little bear P7 in the mail today and had a glorious listening session on unfamiliar content from tidal. Nobsound Little Bear MC1022 Mini 2(1)-in-1(2)-Out RCA Stereo Audio Switch Audio Switcher Passive Speaker Manual Selector Splitter Box Audio Sharing Brand: Douk Audio 4.3 out of 5 stars 179 ratings How is that even possible? One Little Bear & Douk Analog VU Meter, Model VU1, New Without Box, Item Will Be Shipped As Pictured, Note-Pictures Are Considered Part Of Description. U-disk and TF card support WAV, APE, FLAC lossless format, Besides standard 3.5mm AUX input, it also supports Bluetooth 5.0 to achieve faster and more stable transmission. High tech components with eye-catching features at puzzlingly low prices. One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands. A Curiosity full of Tubes and Compromises. These 600 Ohm, 104 dB headphones are clearly far beyond the recommended 300 Ohms supported by the B4-X. With optical / coaxial / USB inputs and RCA / 3.5mm / 6.5mm outputs. The B4-X actually sounds quite good. For sound quality, the B4-X actually exceeded my expectations, but in most other ways, it simply gave me what I expected. Overall, the B4-X sounds quite good when properly paired. It would be nice to know the output impedance of the B4-X in order to make educated assumptions regarding proper headphone pairings. The charging estimates are of 2-2.5 hours with a 4-4.5 hour run time. In the end, I donât regret my purchase. The B4 has no balanced output, but it costs almost 40% less and only requires the purchase of a single OpAmp to try rolling. Douk Audioâs OpAmp recommendations (note that the approximate price listed is for 1 OpAmp and the B4-X requires 2): AD823, AD823AN, AD8066, AD8620, AD712, AD827, BA15532, C4570, JRC4556AD, JRC4558, JRC4580, JRC5532, JRC5532D, JRC5534, LF353, LM4562, LM833N, LME49860, MUSES01, MUSES02, MUSES8820, MUSES8832, MUSES8920, NE5532, NEC4520, NEC4570, NJM2068D, NJM2114, NJM2214D, NJM4558, NJM4558D, NJM4558P, NJM4560, NJM5532, OP275, OPA1612, OPA2132, OPA2134, OPA2277PA, OPA2604, RC4558D, RC4558P, TL052, TL072. Full volume is again too loud for my tolerance, but it remained relatively clear. Gorilla glue to the rescue. But I do have a deep appreciation for music, founded at a young age, and curated over the years. This leads me to believe it may have been a grounding issue with the iFi/Macbook source combo. USB port supports computers (no driver required) and smart phones (with OTG function). Copyright © 2018 SHENZHEN CAVINS TECH LTD. All Rights Reserved. Unfortunately, the B4-X does not support USB charging, so the charger must be packed for longer trips. GFJ554 ASIN B077JZFPR8 Amazon.co.jp ã§ã®åãæ±ãéå§æ¥ 2017/12/8 ãããã度 ⦠However, it is only rated for 100Ω headphones and is supposedly more subject to microphonics and noise. After a couple listening sessions my window simply fell out of the case. Cheap Amplifier, Buy Quality Consumer Electronics Directly from China Suppliers:Douk Audio Little Bear Mini 2 Way Stereo L/R RCA Audio Selector Passive Preamp Switcher Splitter Box Enjoy Free ⦠The B4-X is the most expensive though, at about a 40% premium over the basic B4. The B4-X is just barely powerful enough to drive these 300 Ohm headphones. The B4-X will not function when plugged in to charge. Notify me of follow-up comments by email. One or both of us went through a break-in period. The OpAmps are socketed and do allow for easy replacement. Douk Audio also offers the B5 portable tube headphone amplifier.While the B4 and B4-X share the same physical casing, the B5 is slimmer and lighter. 1× Shuguang 12AU7 Tube. Douk Audio claims that the B4-X supports 16-300 Ohm headphones, so I tested it with a wide variety of headphones on hand. While the B4 and B4-X share the same physical casing, the B5 is slimmer and lighter. ã§ããã³ã°ï¼ã©ã³ãã³ã°ãå£ã³ããè±å¯ãªãã ⦠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. However, that does not mean that it doesnât do the job. 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.
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