Headphone Amplification

I was wondering if an amp designer/builder can explain why so many people have problems running the hev70. Most of the are imported from the EU and it seems to be all sorts of problems yet they work fine in the EU. Is there any possible explaination for it?

Hi, Has anyone tried the Antares? How does the circuit design and specs look? http://high-amp.de/html/antares.html Thanks

Hi y'all, Got my entry ticket into the Stax world in the beginning of 2018 with a Lambda Signature SR-407 earspeakers / SRM-T1S energizer combo. Got them from a Japanese seller and therefore I'm having to use a 100V step-down transformer for Japanese electronics here in Brazil (power outlets at home are 127V, 60 Hz). Only recently got the nerve to open the energizer to remove some dust and check the components (a bit scared of touching those big-ass 100 uF caps, but an anti-static brush and a lens cleaning blower sort of did the job). As far as I could see, all components seem original: The tubes are Gold Aero 6CG7's, Stax Signature selection. I understa…

So our Rotel 1068 processor is starting to give up the ghost. I need to buy another processor or receiver. I have external amplification I am happy with so a processor is preferred. Since these things seem to change daily I am looking for recommendations. Does not have to be latest gen but at this point I do want HDMI switching. Looking at $1500 approx. although less is always nice.

So I recently purchased a Yamaha RX-V365 A/V Receiver for use with my new 5.1 system. The receiver has 3 HDMI inputs and one HDMI output. I had intended to hook my Blu-ray player and my satelite receiver into the A/V receiver via the HDMI inputs. As it turns out this receiver will not send audio to the speaker outputs via the HDMI inputs. This seems pretty lame to me, as the whole idea with HDMI is to have one cable carrying evrything. It also seems that this is fairly common. My receivers manual says to use the digit output of my Blu-ray into the digital input of the receiver. That works fine for 2 channel playback, but the manual says that it's only compatible…

Hello, I'm new to audiophile headphones and I mean completely. I bought based upon recommendations on various websites an Aune X1S. I play Spotify with my iPhone 6 and sometimes my Mac. I understand that I can use an RCA cord to do analog. I want to know how I can connect it digitally? I read that I need an Apple lightning camera connector. Is this the one? Here is the back of the Aune X1S: Thanks for any help that you can give

I'm waiting to hear back from Stephen from Rockhopper audio about a possible home B22 trial. While I wait, can anyone comment on comparing tubes to a B22? I have a Woo Audio 6 SE so any direct comparisons would be great. As far as music goes, I listen to almost everything (no country) but right now I'm mostly listening to folk and indie rock. Thanks in advance!

Has anyone here heard a Woo 3 with top of the line super duper exotic tubes? I'm just wondering how it would compare to something like a singlepower. It would be alot more convinient for me because of the size, but I don't want to lose out on SQ. By the same token, how about an Earmax?

Heh. Since this place is ALL about the controversy right now and it's open season on craziness, GIVE IT TO ME STRAIGHT DOC! I loves my MPX3.

Hello all, First a little background: I recently switched to cranking my GS-X up to high gain and then a buddy came over with Edt. 9s I heard hiss (even when the volume is set to zero). I checked and I can't hear the hiss with my HD650, D5000s or SA5000s. I tried my Shure SE530s and the hiss was there with them too. I did all these checks after disconnecting it from my DAC3 at the back of the amp. On medium gain the hiss is inaudible with the Edt. 9s and slightly audible with the SE530s. On low gain the hiss is barely audible with the Shures when the amp is cranked. This all makes sense since the gain switch is in the feedback loop on the amp so it should drop gain …

I've read some comments about very slow build times and delayed delivery dates, sometimes as much as several months. I realize SinglePower is a small company and customization takes time. I don't mind waiting several months. I've waited months for headphone cables, so waiting for an amp isn't a problem. I'm just wondering what to expect.

I tried to adjust tvr-1 and tvr-2 in srm-727, it seems tvr-1 is in 2-stage and tvr-2 is in first stage. I tried with traditional method which I was using in T1, measure R+/R- dc voltage and adjust tvr-2, measure R+ and ground then adjust tvr-1, both set to about 0 but found the amp stopped working. Then I restored to original value, the amp works again. Does any know the correct way to adjust tvr-1 and tvr-2 in SRM-727? Thanks. I also found 727 is a good paring with hifiman jade 2.

OK I've gotten off the binge & purge wagon, and have settled in with 840c/Almarro/K1000 as my main rig (and Earmax AE for other phones like HD650). Now my main system is pretty much perfect (to me) except for one annoying thing: 840c is fixed out RCA to the Almarro integrated amp. Even with low 5wpc output of the amp and the K1000, I can only use the volume knob up to about 9 o'clock before it's too loud (maybe a bit more for classical/opera). That is, very limited range of volume knob. I wish the 840c had some kind of variable out option, then I could optimize so the amp volume can turn to, say, 10-12 o'clock. Is there some device, like a passive line attenuato…

I want to connect the output on my soundcard to one of the AMP800's inputs, but I don't know the best way to do this. The output on my soundcard is 3.5mm stereo, the Behringer AMP800 has two 6.3mm inputs for the left and right channels. I've been getting conflicting information, one of my friends suggests this--- 1/8 in. Stereo to Dual 1/4 in. Mono Cable http://www.zzounds.com/item--HOSCMP15 . My other friend says this cable would not work, as it would give two mono signals, not a left channel and a right channel. Thanks for any help on this.

But have you ever recommended an amp not sold by cattylink?

hi guys, it looks as if the mark 2 get a brother, I found this note on the website of audio valve. look its : http://www.audiovalve.info/rkv3/audiovalve%20rkv%20mark3.html roger

Earlier today I came across the pictures from ETF '07. http://www.dhtrob.com/etf/index.php?start=23 This is a picture of a totally out there headphone amplifier using transmitting tubes. Those tubes are around 7" tall, and the plate dissipation is up to 100W. For a pair of headphones. And though it's not a headphone amp, this is just stunning.

I have tried every possibility to optimize the circuit, but finally STAX has chosen the worst one. I'm pretty sure that STAX has gone with SMDs, it all fine, most parts in working will not generate lots heat, also SMDs significantly reduces the distributed inductance caused by PCB board through holes. ...... there some analyze and questions: 1, 4 large sized 7W 47kΩ resistors work as plate loads for 6SN7s, but higher value must be better, for example, two series 33K as 006T, or at least 62K 7W will far better than 47K, because 47K means too much current flow through 6SN7s, in my simulation is 9.5-10ma (grid at -9V), it's fine for 12AU7 or 12BH7, but 6SN7GT....…

... I don't have the amp! Lol!! First of all, hi to all As I reported in the Title, I've already a vintage rs-1 recabled apuresound V3 and a Bluenote Stibber as cd-player. But I don't have the amp, I would like to recive some suggestions. I'm thinking of some valve amp in the price range of 1000euro/1500dollars, no more . I'm thinking also about the earmax SE, what do you think about? I've already possessed a rudistor nx-01 and nx-33ev08! For now thanks a lot! Marco

What a bizarre juxtaposition of branding? Fender and Hello Kitty...

Well, I've been tossing around the idea lately of getting a new amp and source. I plan on selling my DAC and putting the Millet on preamp duty for my future HT setup. Right now I'm really looking into the Headamp GS-1. I need an amp with 2 inputs and prefer preamp capability (but don't need it), and the GS-1 also has two 1/4th outputs with a line out. As for a source, I'm looking at the Cambridge Azur 650C from Audiocubes. Other than the GS-1, I'd be interested in a SLAM from Mikhail, or maybe something from the DIY garden (Dynamite?). I'll use my 0404 and possibly the 640C as sources, and would like to use the preamp feature to drive a T-Amp and my Paradigm Atoms. …

You've lived your whole life as an audiophile experiencing the natural goodness tubes bring to headphone amplification. While others sought refuge in new technologies, in solid state design, you were content to relish in the warmth of heated glass, ignoring any design that did not implement your selfish, no, sinful obsession, with hot, glowing metal through sometimes tinted glass. But what will you do when all the NOS tubes are gone? What will you do when Sovtek 6sn7s go for $750 a pair? Today, this is a lesson you must learn. Look around you. All around this room are popular solid state amp designs in the $1000 dollar or less range, maybe a bit more if you can stretch…

I would like to build a Solid State balanced amp and need recommendations. I have LCD-2's non fazor to power. I've built in the past(guitar amps too) soldering skills good, I'm not coming up with anything besides B22 amps. Suggestions please.

Hi guys, I possess a wonderfull, like new, melos sha-gold and a pair of vintage grado rs-1!!! I need a pair of very good tube to use but, I've not sufficient money for experimenting different options... So between these tubes, which one is the best for my needing? Mullard E88CC-01 Telefunken E88CC Amperex 7308 Siemens E88CC A0 If you have other options in mind please let me know! Thanks in advance!