My AudioEngine A2 left speaker has small problem due to one of its electrolytic capacitor leaked. I am little bit surprised that audioengine used those capacitors manufactured by TWBOR/TBOR so I planed to replace them all. Two questions need help: (1) One problem I am facing is how to deal with...

Hi, I have a head-fi friend in Canada want to buy amplifier(between USD100 to 300 range) from USA? anyone knows how much he need to pay for custom fee? Please share your experience. I appreciate any help! Thanks very much in advance!

The picture below is linked to Tangent's PPAv2 site: The screw looks nice, so I am wondering what it is. If you have used better screw, also please let me know. Thanks in advance!

I plan to buy B+K 2706A (Datasheet http://www.bkprecision.com/download/...ion/100-35.pdf) to match my BJTs in my PPA. It looks like B+K is somewhat name brand(not good as Fluk) , but I am not sure whether this model is good. So I need some help on feedback from the owners of this model. Please...

It is funny to see myself that I want to build a PPAv2 to play with so later after I know what is in HR '06 Max module. So I am looking for Cerafine 220uF/35V caps these days. I tried digikey(not in stock), mouser(NONE),newark(None). If you know where to buy it in US, I will appreciate your...

Just curious. Analog Devices AD1896 is just the Asynchronous Sample Rate Converter to reduce jitter. It is not D/A converter . So what is the DAC chip in Max DAC? My guess the answer is still Cirrus Logic CS4398 .

These caps are used to suppress the noise generated by the silicon bridge diodes (e.g. MUR820) as they switch on and off. Usually it is ceramic or film cap. I have following questions. (1) Take sigma22 as example, it is 220pF/100V C0G,NP0 ceramic. If I want to buy metallized polyester film...

Here is the specs for Nichicon Muse KZ and ELNA Silmic II. ************ From the specs, these two series caps looks in same grade, For rated voltage=50V, the both series caps' Tangent of loss angle is 0.08. So can I assume they have almost same quality? Here are the links to...

I bought this transformer: But I don't exactly know what parts needed to SAFELY secure it to this Hammond 1455T2201 case. Please share your experience. Thanks in advance!

Just wondering anyone ever built PSU for MicroDAC. I plan to build one to upgrade MicroDAC's stock PSU. Please share your experience if any. Thanks in advance!

These pictures are made by mb3K.(Thanks! mb3K) I am planning to make one STEPS for fun. But I am not sure whether the Hammond case in these picture is 1455N1201BK or not. So just double check. Thanks for help in advance!

After reading http://www.tangentsoft.net/audio/pimeta/tweaks.html, I am thinking about stacking BUF634 for each channel. But I have couple questions need help. 1. I plan to stack 2 buffers for R & L channel, also halve R11. Do I need to double buffer for G channel as well? 2. If I don't...

See this full size DC 12V drill @ home depot, http://www.homedepot.com/prel80/HDUS...gkj.0&MID=9876 Just wondering whether it is good enough for metal case work. If it is not powerful enough, I will just buy a AC corded one. Please share your experience. Thanks!

I powered on my PIMETA, then test the DC offset between IG and OR/OL. Following are the results. Test case#1 (When C1 pins are shorted) 1. Before power on my source CD player. OR: 0.6 mv OL: 1 mv 2. After power on CD player. OR: 0.6 mv OL: 1 mv Test case#2. (Add C1 0.22 µF metalized...

I bought Cardas GRFA w/thin nut RCA jacks from Handmade(hndme.com) for my PIMETA. Here is the photo of the jack. . I just don't know how others soder the ground wire onto them as there is no solder lug for it at all. Should I buy addition accessories? Thanks in advance!

Electrolytic capacitor has polarity for sure, others depnds. 1. For Tangent's TREAD kit, I see following caps have polarity. C7: 10 µF/35 V dipped tantalum capacitor C8: 1 µF/35 V dipped tantalum capacitor But followings do not have polarity. C1-C4: 100 pF X7R ceramic capacitors C6: 1...

I checked ALPS.com, the shaft diameter of RK27 is 6mm. If I buy the knob for shaft diameter 0.25" (=6.35mm), will it fit very well? Just curious. I know I always can add something to fill the 0.35mm gap. Why I ask this question is on Tangent's parts list, the suggested knobs(e.g. 45KN031) for...

I am working on the parts shopping list for my PIMETA. Got following questions need help. Here is the link to see Tangent's PIMETA Parts List: http://www.tangentsoft.net/audio/pimeta/plists.html (Question 1) For C1(0.22 µF metalized polypropylene capacitor), on Tangent's optional part...

I bought the TREAD kit from Tangent. In the package, there are two capacitors(C7,C8) I can not distinguish very clearly. The description for C7, C8: C7: 10 µF/35 V dipped tantalum capacitor C8: 1 µF/35 V dipped tantalum capacitor The mark on my two capacitors: (CAP 1) 106 35K +537...

What is the case you used for PIMETA? With ALPS RK27, I think its(circuit board+RK27) height is about 27mm. So I think the Hammond 1455K1201(4.72"x3.07"x1.69") is my choice. But the Hammond 1455J1201(4.72"x3.07"x1.06") might be too small to squeeze in my PIMETA. Any suggestion is...

I am doing the homework for my PIMETA project. For C2/C3 Electrolytic capacitor, what brand and cap value you using? I plan to use high grade, low ESR 1000uf x 4, but I am not sure which brand I should buy and what is the cost/cap? Hope it doesn't cost more than $15/cap. Any help is...

I have couple nice PSUs (size is about same as the regular laptop power supply) which can easily supply 2000mA current, but its voltage is 12v. Is it good for PIMETA? BTW what is the typical parts cost for building a PIMETA? I read some threads in this forum, some people said USD 100-150...

Hi,this is the first time I post thread in this forum. I have following questions need help. 1. If I put 2 times HA5002 at output stage, will it be big improvement if I biase them into Class-A(High current) mode? 2. If the answer for question 1 is "YES", then what is the difference of...

I just bought IPOD photo 40G about 3 weeks ago. My configuration is IPOD line out port on the DOCK ---> Kimber Kable mini to RCA --> Headroom Maxed-out-home ---> HD650. The sound I am hearing in HD650 is very ""flat and muffled", lost a lot detail even I use apple lossless or .wav file. If I use...

Does anybody use Kimber Kable Mini to RCA(1ft) cable before?