JBLoudG20 Posted June 25, 2009 Report Posted June 25, 2009 Unless Gary added it, there isn't a zobel on his amp.
Smeggy Posted June 25, 2009 Report Posted June 25, 2009 (edited) I haven't added it, I do have the parts on order though. In the meantime I was shunting straight through. I love the sound but don't want to kill my baby so until I hear back from amb with whatever sage advice he may (or may not) offer, I'll hold off the 'stats for now. Just got a reply from Ti IME it should work fine, but I have not personally tried doing that. Zobel is recommended, no other protection should be necessary. -Ti Edited June 25, 2009 by Smeggy
Torpedo Posted June 25, 2009 Report Posted June 25, 2009 Pretty sure (99%) that the Zobel is on the e22 backplane board on Torpedo's amp. Thanks Nate, I was quite sure you had installed it if it's recommended to drive speakers. Smeggy, will you install a zobel then? Maybe you can add one on the jack adapter you built. Seems easier than putting it inside.
Smeggy Posted June 25, 2009 Report Posted June 25, 2009 I will install the zobel, where is not decided yet. I still have a way to go before finalizing all the stuff in there, the Dyna boards still have to go in whenever they're done and I also wanted to put the Stax and Sony adapters inside the case. I'll have to see what's actually practical though as I measure it all out. it is a big-ass case.
spritzer Posted June 25, 2009 Report Posted June 25, 2009 Pretty sure (99%) that the Zobel is on the e22 backplane board on Torpedo's amp. There is.
luvdunhill Posted June 25, 2009 Report Posted June 25, 2009 it is a big-ass case. Bigger than 19" x 13.77" x 6"? If so, then I must make mine bigger!!!!1!
Smeggy Posted June 25, 2009 Report Posted June 25, 2009 Bigger than 19" x 13.77" x 6"? If so, then I must make mine bigger!!!!1! Bah!! smeggy starts looking for 24" cases...
Dusty Chalk Posted June 25, 2009 Report Posted June 25, 2009 Just got a link to this in my email today. US$700.
padam Posted June 25, 2009 Report Posted June 25, 2009 If warranty is not that important, it can be had for less than 500$ via Yahoo Japan.
HeadphoneAddict Posted June 26, 2009 Report Posted June 26, 2009 I feel like I missed something - in almost 2 years I've never heard of a zobel or why stax transformers would be a problem for an amp like Beta 22. It's like I'm a newbie all over again. Can someone explain this in a little more detail, and say when we need to be more careful or concerned in matching an amp to a transformer box?
Smeggy Posted June 26, 2009 Report Posted June 26, 2009 As far as I can make out, It's basically to do with the Beta potentially becoming unstable with inductive loads like some speakers present and a zobel is like a signal bleed and load stabilizer for awkward speaker loads. I want to run transformers and didn't know if they presented a potentially destabilizing inductance like speakers can and if so would a zobel network suffice as protection. It's a very basic thing, only two parts.
malldian Posted June 27, 2009 Report Posted June 27, 2009 Well I finally figured out an acceptable DIY headband, cut the cable and resoldered it about 2 ft down. So I am getting my first real stax listen (Central Station> Adcom GFA 1> SRD7 > Lambda) and am really enjoying it. Quick question though, I removed all that crappy foam in back and ripped / took out the thin (mylar?) piece between the driver and grate, should I replace that one? Edit: I think I will start actually using headphones over my speakers now.
spritzer Posted June 27, 2009 Report Posted June 27, 2009 The headphones will not last long without the dust cover so replace that now!!
malldian Posted June 27, 2009 Report Posted June 27, 2009 Alright I will get on that now then. Are you talking about the thin plastic in front or that foam in back or both?
padam Posted June 27, 2009 Report Posted June 27, 2009 If the dark foam is missing that's ok but the thin dustcover is needed to protect the drivers.
malldian Posted June 27, 2009 Report Posted June 27, 2009 Thin plastic film. My father is bringing me 1/4000 and 1/7000th inch mylar from work. I will try them both and see if there is a difference.
cetoole Posted June 27, 2009 Report Posted June 27, 2009 If these are the normal bias Lambdas, which seems to be the case, you also really should consider damping the drivers. There is some very open foam you removed, and since you mentioned removing the dust covers, you almost certainly also took out the damping pad. I really did not enjoy my SR-Lambda undamped, but love it with the stock (or approximately) damping material. I guess it is even worse for you, as that dust cover should be providing some additional damping. On another note, I got my first really good listen to my new Lambda Sigs. I have to say, I am not hearing the love. Damn things are too bright for me, in such a way that I would probably put them last right now of all of my electrostatics. Bass is also disappointing.
faust3d Posted June 27, 2009 Report Posted June 27, 2009 Well I finally figured out an acceptable DIY headband, cut the cable and resoldered it about 2 ft down. So I am getting my first real stax listen (Central Station> Adcom GFA 1> SRD7 > Lambda) and am really enjoying it. Quick question though, I removed all that crappy foam in back and ripped / took out the thin (mylar?) piece between the driver and grate, should I replace that one? Edit: I think I will start actually using headphones over my speakers now. Why did you rip/took out the mylar dust cover?
malldian Posted June 27, 2009 Report Posted June 27, 2009 Why did you rip/took out the mylar dust cover? It was ripped when I got it. I made a syran wrap cover for it now on monday I will try to do the mylar. If these are the normal bias Lambdas, which seems to be the case, you also really should consider damping the drivers. Any suggestions as to how to dampen it? I have some loose cotton and felt I will try once I get the dust covers on. I just added one of the jmoney grado leather headbands onto the frame... looks good.
faust3d Posted June 27, 2009 Report Posted June 27, 2009 It was ripped when I got it. I made a syran wrap cover for it now on monday I will try to do the mylar. Any suggestions as to how to dampen it? I have some loose cotton and felt I will try once I get the dust covers on. I just added one of the jmoney grado leather headbands onto the frame... looks good. Ahhh, sorry to hear this. Replace it as it's the only real protection from dust and particles your headphones have. Stax dampens Lambdas with mineral wool, it looks lighter and fluffier than cotton.
Smeggy Posted June 28, 2009 Report Posted June 28, 2009 The EHHA amp is running my Stax transfo box very nicely right now, though the Stax are getting plenty of volume the Beyers are significantly less efficient which is restricting volume levels. Very nice sound all the same.
malldian Posted June 29, 2009 Report Posted June 29, 2009 Ahhh, sorry to hear this. Replace it as it's the only real protection from dust and particles your headphones have. Stax dampens Lambdas with mineral wool, it looks lighter and fluffier than cotton. I will be on the look out for mineral wool. In the mean time my father brought home his mylar film. It is certainly very thin but it is red and seems to be different than what was there before. It can't be torn (which is another thing that makes me suspicious), needing to be cut to work. Is this in any way suitable? edit: its the cover. Will report back later. edit2: it is certainly not the same stuff. I will have to order some I guess.
spritzer Posted June 30, 2009 Report Posted June 30, 2009 Did any of you see the new Hi-Fi News yet? There is a nice picture of an owner enjoying his SR-007...
Hopstretch Posted June 30, 2009 Report Posted June 30, 2009 Did any of you see the new Hi-Fi News yet? There is a nice picture of an owner enjoying his SR-007... Suitable for framing?
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