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0 NeutralAbout ClieOS
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Rank
Junior Member
- Birthday 06/28/1979
Previous Fields
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Headphones
Sony MDR-E51 / MDR-A34 / MDR-E888LP / MDR-EX700SL / MDR-EX85SL Sennheiser MX500(OEM) / MX90VC / LX90 / OMX52 / CX300 / PX200 / MX50 / MX760 Panasonic RP-HS101 / RP-HC50 / RP-HZE10 / RP-HZE70 / RP-HT970 / RP-HV600 / RP-HTX7 / VMSS Hybird Logitech bluetooth headphone for mp3 Etymotic ER6i Shure E3c / SE530 Koss KSC75 AKG K81DJ / K311 Audio-Technica ATH-AD700 / ATH-ON3 (x2) Alessandro MS-1 Creative EP-630 / EP-480 Bang & Olufsen A8 CrossRoads MylarOne X3 / Bijou3 (x2) / HR1 / HR2 / Quattro / Woody 1 / Woody 2 Yuin PK1 / PK3 / G1 Altec Lansing iM716 Sleek Audio SA6 Head-Direct RE0 / RE1 / RE2 Ultimate Ears Triple.fi 10 pro JAYS q-JAYS / s-JAYS JVC HA-F130 Westone UM2 Future Sonics Atrio M5 (rev.2) SoundMAGIC PL-11 / PL-20 (x2) / PL-30 / PL-50 Maximo iM-390 / iM-590 LEAR Le01 Philips SHE9850 NuForce NE-7M Apple In-Ear Headphone with Remote & Mic (ADDIEM) MP4Nation alpha Brainwavz / beta Brainwavz Woodees IESW100B Astello Radiance+ Hippo Boom
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Headphone amplifiers
Firestone Audio Little Country (Hybrid OTL) Practical Devices XM3 - AD8620 Little Dot Mirco Plus PengAmp Original CMOY2 - OP270 (DIY) Edifier HA11 MINT - OPA2134 (DIY) Jaben cMoy - OPA2134 (DIY) Travagan's Colors FiiO E3 (x2) / E5 (pre-production sample x 1; final production x 5) Meier Audio Corda 3Move iBasso T4 GoVibe Derringer
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Sources
iriver CLIX / CLIX2 Samsung YP-U2 Panasonic SJ-MR220 BENQ Joybee 125 Sony D-EJ1000 Sony Ericsson W380i 'Walkman' phone Sandisk Sansa Fuze 8GB + 8GB μSDHC Apple iPod Nano 4G 8GB
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Other equipment
Portable speaker: Creative TravelDock 900 JBL onTour Altec Lansing inMotion iM4 DAC: Go-Vibe USB DAC Stereo Bluetooth Headset: i.Tech Clip IIIs Sony DRC-BT15 Portable Gaming: Game Boy Advance SP -> Game Boy Micro Sony PSP-1000 Dingoo Digital A320 + 2GB μSD
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Favourite configuration used
Portable Rig: Fuze - diyLOD - iBasso T4 - RE0
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Team:
Team InEar
Contact Methods
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AIM
ClieOS
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Website URL
http://www.inearmatters.net
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ICQ
66206292
Profile Information
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Location
MYS
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BTW, K518DJ is the same as K81DJ except for the color scheme.
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Here is my review of Radiance+, as part of my multiple IEM review thread over at Head-fi.
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Bi-flanges give a less in-you-face sound with a little better soundstage and separation, but at the cost of tiny amount of bass.
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I was switching b/w the two. Shure is more controlled, smooth, better separation and isolation (slightly) while the stock is more energetic, detail and airy. For my own preference, I think I prefer the stock just a little over the Shure. Still burning in as I write, so I haven't made up my mind which to stick with
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Just got this a few days ago from the new store @ Plaza Singapore. Must said I am impressed, even before any burn-in. I'll be doing a review on this over at Head-Fi on the upcoming week once I put 100hrs or so on it.
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LM6171BIN is operational amplifier, BUF634P is amp buffer, thay are not compatible to each other directly!, Dont swap them or you may just might burn something on your board.
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I got it fro farnell, made by Multicomp, part #662392. They got other size too. http://au.farnell.com/jsp/search2/browse.j...6&No=25#results
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Opamp does not come with socket. Farnell should have them under 'connectors'. Anyway, i make small changes to my box so i can use single rechargable or two alkaline in parallel.
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Not really know why people do it or would it have any effect of sound, i just doing it so i can manage them better...
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I have rolled quite a few opamps: OPA2134,OPA2227, OP270EZ/OP270GZ and OP275. So far i like OP270EZ the best. The one i just posted has OP270GZ in it. This amp will stay on my desktop, while the other one will go out with me. I fit ot in a spare box i got last time, pretty tight and no place for anything else...
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Second attempt:
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I wil just use two layer of large scotch tape.
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I will give you a stardard wiki answer: "Dissipation factor (DF) is the ratio of a capacitor's resistance ® to its capacitive reactance (Xc). DF is usually expressed as a percentage. DF will vary depending on the dielectric material. In low dielectric constant (K), temperature compensating, ceramics DF of 0.1 to 0.2% is typical. In high dielectic constant ceramics DF can be 1 to 2%. However, lower DF is usually an indication of quality capacitors when comparing similar dielectric material." from http://en.wikipedia.org/wiki/Dissipation_Factor The lower the DF is, the less likely the charge will be lost due to non-electrical factor, in general. I am not an electronic engineer so i cant say how low is good, but i will say get the lowest you can afforted. Also, you can just drop the op270ez in. The other question about mounting in tin is: you should use isolated audio jack and switch to avoid ground problem. they are more pricy but better in quality and have less interference. (or you can isolate them yourselve.) I do connect the two together before and notice no difference.
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The cap seems ok. I use Panasonic, it has a smaller Dissipation Factor than your (loss of charge by heat,etc). Try to you can get one with smaller Dissipation Factor, if not, i dont think it will affect too much. For mountiing into a tin, the tool you need is just a drill the can work with metal. Do remember to insulated the base.
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I have op270ez (the one i am using) and op270gpz, different in input voltage offset 150µV vs. 0.25mV. Sound wise they are very difficult to tell apart. But i feel ~ez has stronger output.. I bought all my op-amp from Farnell, maybe mouser didnt carry them. Newark USA (Farnell?) does have it, here is the link: http://www.newark.com/NewarkWebCommerce/ne...=AFC-TL10000001