Sennheiser PC37X randomly goes bad after disconnecting the cable ?
Greetings, Yesterday I was using my headset like normal with my macbook, just listening to music and on a call with people like usual, and the headset was perfectly fine. The stock wire that came with the headset is extremely long and yesterday it annoyed me very much that it kept getting tangled with itself, so I decided to see if the cable is replaceable. I pulled out the cable from the headset and saw the adapter, and looked online for a replacement. Upon plugging it back in, the audio sounded extremely muffled and washed out. Im not sure what I did wrong to make it mess up like that as I've always taken good care of it, ive had it for about 2 years and its always just been chilling on my desk, but anywho I thought the cable just went bad and ordered a replacement. The replacement came, and the issue is still persistant, so I am not sure what the issue is I've tried multiple different headsets and the issue is not with the port, and I also tried it with my windows laptop and...
Apr 23, 2024
Thank you! Turns out, this is an extremely versatile system. :) The LCX+SDAC is all you need with your computer and headphones or in-ear-monitors (IEMs) to have a great musical experience.
And, this DAC/Amp combo can be used to test other gear (if you ever wish to): -LCX+SDAC allows you to compare the internal DAC with an external DAC. The LCX can be fed from external sources (DACs, CD players, digital audio players). -The LCX+SDAC can be used as a DAC into another amp. You may want to try a tube amp on top. -Single-ended versus balanced operation…you can try your headphones and in-ear monitors on both outputs. -The LCX+SDAC can accept single-ended or balanced DACs.
The LCX+SDAC is a very high-quality audiophile Swiss Army Knife for sound. Topology - Quiet, Powerful Alex Cavalli and I have had many conversations over the course of the past year about what makes the Liquid Carbon amplifier topology special.
The original purpose for the Liquid Carbon was to make a high-quality, low noise balanced IEM amp with a gain of 1x, with the additional features of having a gain of 3x and a single-ended output for convenience.
The LCX utilizes unity gain current feedback discrete operational amplifiers derived from the output buffers used in the highly-regarded Liquid Glass amplifier. The Liquid Carbon’s balanced & bridged design rejects noise in the circuit, and can produce the clean power needed for both IEMs and headphones.
Grace Design Standard DAC (SDAC) There are phase-splitters in the LCX that convert the SDAC signal into balanced. I've done my own testing and can definitely tell a difference between the balanced and single-ended outputs with the SDAC.
Using Noble K10 IEMs with balanced cable (and adapter to 4-pin XLR), I can report that the Noble K10 balanced out of the LCX+SDAC is a great pairing...
I'm sure there see a boatload of us crossing ite collective fingers. Heck, the original LCx discussion even has a post outlining possible pairings...
I want to add a mixer into the equation. Main question I want to know is: 1) Can you use this as a PRE AMP for external speakers? 2) If you are outputting to headphone, will it still output to speaker? 3) Can you use both headphone jack at the same time or only one at a time?
Please let me know if there is any logic in my diagram that is incorrect.
The RCA output is only a "pass through" of the input that comes into the RCA input. This way you can use a DAC into the LCX and pass it through to a tube amp (for example). So, the volume control does not have an affect on the RCA pass through in the back.
You can output signal from the 3.5mm DAC output to either a mixer or to powered speakers but not to both at the same time.
Yes, you can listen to both headphone outputs at the same time, the single-ended output will be lower in power.
One way to use this amp as a powered pre-amp is to use in low (1x/unity gain) and then take a signal from a headphone jack output to a set of self-powered speakers. You would not have a separate volume control for both headphones and the speakers if using both headphone jacks simultaneously but that is how you could have most of this capability...
Lets say if Input 1 comes from SDAC, Input 2 comes from Balance Input, Input 3 comes from RCA Input. Can I use the Input switch to switch between outputting the DAC's signal to either the AMP or the mixer(always connected to the DAC in the back)? For example, if I use Input 1, then I want to get sound from the USB to my headphone. If I use Input 3 which read signal from RCA IN, then I want the DAC to still work and output to my Mixer that is connected to the 3.5mm out in the back. In other words, can the DAC and AMP also work completely independent of each other?
I want to make sure that the signal can travel through these path without having to unplug any wires: 1) DAC -> AMP -> HEADPHONE (Use Input 1) 2) DAC -> MIXER -> AMP -> HEADPHONE (Use Input 3) 3) DAC -> MIXER -> SPEAKER (Use Input 3) 4) MIXER -> AMP -> HEADPHONE (Use Input 3) Note: The mixer has two output channel with independent volume control so it is not a limiting factor. The DAC and AMP I am referring to is the ones in this product.
Also, if I plug in a headphone into the AMP, will it still pass through the signals from the RCA IN signal to the RCA OUT?
I really need to understand the signal logic in order to decide if this can fit into my audio solution.
Thanks
1. Can both headphone outs be used simultaneously? I'm looking for a sonic siphon my fiancee and I can squeeze through together.
2. Has anyone tried this amp with CF Andromedas? I expect that combination to hiss rather than sing, but if it did sing, this would be an automatic splurge.
I've googled that combo (along with the Lord's name) in vain!
I might pluck my hoary MAD Ear++ out of storage after all, since clients and I could listen together with that amp.
http://www.superbestaudiofriends.org/index.php?threads/the-cavalli-liquid-carbon.267/page-10
About 3/4 of the way down the page they talk about it. Guy blew out his amp, others mention that it is a big no-no.
Again, this was the Cavalli version of the amp, I have no idea if Massdrop addressed the problem with their version.