ok. thanks for the response.  

Hey there   my he-400 just arrived.  after I plugged them into my amp there was a very quick snap-crackel-pop type sound coming from both sides.     is this going to happen every time i plug them in?   also, any advice for someone who's brand new to planar magnetic anything?   ...

I believe, the top of the line woo wa5 has binding post's and is able to power spkrs.  afaik that is the only woo able to power speakers.  otherwise a headphone amp is designed to drive headphones.   

Hey there   Later today UPS will deliver my HiFiMan He-400! This is going to be my first foray into planar magnetic anything.   Right now I'm breaking in a pair of akg k702 using the special burn in noise on track 20 off the stereophile test cd 3 ...and I've got to wondering if there are...

Yes you can use it, although you will still need a phono-stage for the turntable.

Hi   I have a cd player with a built in preamp/volume control, and balanced outputs.     Is it safe/practical to use balanced headphones connected directly to the balanced outputs on my cd player?    The cdp has output voltage up to 5.0 V rms.   And output impedance of 100 ohms.  ...

Also,   The Audio Aero can output up to 5.O Volts RMS. Has 100 ohm output impedance.   I am interested in getting to know my headphones better, and figure removing my headphone amp from the equation would remove a big variable.     Is this just a stupid idea?  I don't know how to...

Does anyone know if it is possible to hook up balanced headphones into the balanced outputs on a cd player that has a built in preamp/volume control?      In particular I have an Audio Aero Capitole mkII se cd player with the preamp section.     Headphones are:   Grado 325is...

Just curious what would happen.    Soon enough I'll have a balanced headphone amp, and I will ultimately be using balanced cables between my source and the amp.  

Here's another question.   If you have a balanced source, and a balanced amp...but only an rca interconnect cable...would rca to xlr adapters actually work and send a balanced signal to the balanced amp from the balanced source?

If you can, swap the tube with the other channel to see if the white noise follows it.

Hey grokit   I have fully balanced atma-sphere monoblocks, and they require an adaptor for the xlr inputs if i were to run them single-ended.     did the 325i sound good with the wa22?  

Hey Solude   Thanks for the photo and advice.       The b22 looks nice.  From what i've been reading it looks like the b22 might not be the best for a first time diyer.     So the signal goes balanced into the transformer and outputs the same balanced signal to the output terminals...

Thanks for the photo.  Do you have any photos of a balanced output for example.  Thanks.

Quote:   For now I've got a pair of hd650, and a set of 325is that I am still on the fence about keeping.      I've been into hi-fi for the past 15 years, but I'm brand new to headphone listening, and turns out I really enjoy the experience.

Hi Solude   Can you recommend some other headphone amp's that are available based on the same tried and true circuit?   I just read about the B22 and it looks rather interesting.  I have been thinking about the BottleHead Crack as a diy project.  I like the idea of diy.

Quote:   Does the WA22 brute force design translate into a negative for the sound quality?  

Any insight regarding the outputs on the WA22.     Considering they all output the same signal, is it worth upgrading cables for connection's sake?  I would guess not.    Thanks for any advice.

Thanks for the info.   So, if the WA22 does not have a single-ended to balanced conversion built in, why does it have single ended inputs?     There doesn't seem to be any convenience gained as the amp will only be operating at 50% efficiency?   Any one with a WA22 that has compared...

Hi there,   I'm close to getting a WA22.   Does anyone know how the WA22 compares to the WA6-SE, when running an unbalanced signal into the WA22.   Thanks for any advice.

Ok, so an unbalanced source plugged into the balanced inputs will result in an unbalanced output.   And in this case, only half the amp is operating.     Is the sound quality going to be drastically affected because only half the amp is operating, or does this just turn the wa22 into a...

Hi.  I'm new here, and just getting into headphones in general.   I'm interested in the Woo Audio Wa22 for my Sennheiser hd650.  The Wa22 has one set of unbalanced inputs, and one set of balanced inputs. I understand that the source/input needs to be truly balanced to get the best from the...