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My thoughts on the APPJ 1502A: Requires lots of mods (relatively, since I don't know how to solder) to as sound good as I want it to be.Īny how, if the DarkVoice amp is a safety concern, then my only option is to get the woo audio WA3 or WA6, which I would like your experience if they produce similar excessive heat. As reviewed by his greatness /u/ZeosPantera :D, sound is an excellent fit for my needs. Here's my thoughts and concerns on the DarkVoice: Build quality and excessive heat (my room can reach 31 Celsius with AC off which I can handle). Hi, really need your advice and thoughts on the aforementioned amps. Thanks again every one :)85% UpvotedArchivedI need your advice on wither to get the DarkVoice 336SE vs APPJ 1502A Tube Amps (in terms of sound, temps concerns, build quality) #Darkvoice 336Se Vs Bottlehead Crack crackMeaning that I could get the Crack + Speedball for the same price than the Valhalla 2. One pretty big point to consider is that the Crack is currently on a pretty decent sale. I've heard they are both great, but I would like to hear everyone's opinion on both of 'em or how do they pair with the 650's I'm looking for a neutral but fun to listen sound. I have always thought that I preferred bright sound, by recently I've wanted to try the warm sound of a tube amp. However I'm struggling with the selection of a tube amp to drive them before I order them. So I've been looking forward to stepping my game up, and after a month of research, I found that the 650's are exactly what I want.Darkvoice 336se ModsDarkvoice 336se Vs Bottlehead Crack Headphone Cable It's a great solution for audiophile-level quality at a relatively reasonable price, though it does lack a balanced output.Schiit Valhalla 2 vs Bottlehead Crack 1.1 + Speedball with HD 650's *The DarkVoice 336SE (around $290) utilizes the inviting and dynamic tones of analog circuitry to enable a memorable listening session. #Darkvoice 336Se Vs Bottlehead Crack upgradeDarkvoice SE336 VS Bottlehead Crack with speeball upgrade By PrestigeWorldwide, April 28 in Portable Audio, Headphones and Desktop Audio Reply to this topic. *Darkvoice 336se Vs Bottlehead Crack Darkvoice 336se Specifications. It has 42 reviews summing to 4.5 stars on Amazon. #Darkvoice 336Se Vs Bottlehead Crack freeIt is on kind loan from a member who has literally been waiting months to get it reviewed! It costs USD $310 on Amazon including free shipping. *This is a review and detailed measurements of the DarkVoice 336SE pre-amp and headphone amplifier. USB Interface: Stello U2, Nuforce uDAC2 ║ DAC: Stello DA100 Signature, Keces DA-151 MK2 Headamp: Darkvoice 336SE, Bottlehead Crack ║ Headphones: Sennheiser HD650, AKG Q701, Audio-Technica ATH-M50.Darkvoice Vs BottleheadPosted byHD 650/w Bottlehead Crack - RHA MA750i2 years ago I used a 220K-100K voltage divider to give the heaters a ~50VDC lift, which completely fixed the noise issue (note the B+ in my circuit is 180VDC as opposed to ~150VDC in the original design, so adjust voltage divider resistor values accordingly).The original Crack headphone amp is a high output Z, cathode follower, OTL topology that has garnered much praise in the headphone community for its sound quality and reasonable price, particularly when paired with Sennheiser's 300 Ohm HD6XX headphone lineup. Some of you may know the Golden Tube Audio saga - products that sounded great but that had a bad habit of succumbing to parts run above their specs. ![]() edited April 2013 in For Sale (FS) Classifieds. The second change that must be made to completely cure the noise issue in these tubes is to elevate the heaters above ground. Equally just as good on my DV 336SE (RCA and GE tube substitutes) and is right on par with the. The hum is present on some input tubes, not all, due to heater-to-cathode leakage. #Darkvoice 336Se Vs Bottlehead Crack manualThis improves the hum but does not eradicate it, I suspect due to significant primary-to-secondary leakage currents in the transformer which is of poor quality. Darkvoice 336se Vs Bottlehead Crack Reviews Manual Descalcificador Cillit Data Parat 750 Adobe Acrobat Imposition Plugin For Acrobat Download Magnifying Glass Pro 1. A virtual center-tap can be made using two 100ohm 1/2W resistors. ![]() The heaters in this amplifier are not center-tapped, the designer has grounded one leg of the heater at the power LED ground point. The widely reported hum issues in this amplifier can be corrected by making two circuit changes. I'll post something in the DIY thread to show it off when it is done, but wanted to point something out here. ![]() These are not hocus pocus modifications, actual circuit design changes based on sound tube amplifier design. Headamp: Darkvoice 336SE, Bottlehead Crack Headphones: Sennheiser HD650, AKG Q701, Audio-Technica ATH-M50. I am doing a total circuit overhaul of this amplifier to improve the design and also correct many of the mistakes of the original designer, just a fun DIY project for someone on Head-Fi. ![]()
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