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zhang_junyang

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Everything posted by zhang_junyang

  1. it is determined by both the sensitivity and impedance of the headphone.
  2. the 5532 opamp operating voltage range is ±3V to ±20V. 1 battery is fine.
  3. default gain of the amplifier based on the default values of the resistors is quite high for you to remove the pot completely. u will find it difficult to adjust ur volume. u will either have to reduce the gain or add the pot. wat is the opamp used? Whether 1 or 2 batts have to be used depends on this.
  4. The 10K pot refers to a 10k ohm potentiometer (variable resistor). It is used to change the volume of your amplifier. It normally has 6 pins; 2 rows of 3 pins each. So, for the left/right channel, u normally connect 1 end to ur input jack input, the other end to the ground of ur jack and the middle pin to the 0.1uF in the schematic. The virtual ground is the ground split by the 2 4.7K resistors. Just connect this point to ur input jack and output jack grounds and all other ground points depicted in the schematic.
  5. WTS the above item which is more than half a year old. Deal somewhere in the west. RP: $45. Interested, pls reply thru pm. Thanks.
  6. Koba is not opened on Sundays and public holidays so dun go there on those days. Mondays to Saturdays are fine. Since you are still quite young, it will be good if you are able to get someone experienced to guide you along the way.
  7. i bought it frm stereo, not frm MBD. will they accept? also, does anyone has any experience wat the charges are like? if it's too expensive, then it may not be worth it. thanks.
  8. Hi, i have a problem with my sr60 cable. the cable at the Y connector leading to the left side of the headphone needs to be bend for the left side to be heard (shld be wire broken). is there any place to fix it? the headphone is less than 1.5 yrs old only. any advice is welcomed. thanks in advance.
  9. no problem with the extra charges. so u r going to bring the amps back to ur home or workplace?
  10. hi, haxyer. will you be at ur workplace on saturday?
  11. Hi hayxer, I just transferred the money to you thru internet banking. pls check and see if its through. Thanks. Pls also see pm for my contact if you need to contact me.
  12. I will take a LDM+ (black). Will pay you soon. Thanks. LDM+ 1)Qsilver (Normal gain)(Black) 2)jojo(Black) X 2 3)chynakym(Black) 4)evian_vortex(Black) 5) fallraen (Black) 6) zhapchit (Black) 7) xenocide (black) 8) headphone2004 (black) 9)ahdui (Black) 10)kanga (black) 11)zhang_junyang (black) LD2+ 1)Wil ( Black ) 2)Neub Detat (silver) 3)themanster (silver) 4)ahdui ( Black ) 5)ssnow5 (Silver) 6)ralli`fto (Black changed to Silver) 7)rko (Black)
  13. hi, wat is the voltage rating for the dc adapter used? and wat are the opamps used? thanks.
  14. only bad thing i find abt grado sr60 is that it is not exactly that comfortable. it gets tiring to wear it. but the sound is really great. suits me as i dun like the sennheiser's kind of laid back sound.
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