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Post by goubeaux on Dec 4, 2013 0:15:11 GMT
Hi Folks,
So I am new to using a headphone amp. I recently acquired a used pair of sennheiser HD600s and the seller threw in an Xcan V2 amp with some extra tubes, the amp was minus a PSU so I found a used AC-AC12V wall PSU that seems to work fine.
I powered up the amp and first tested with an iPod as an audio source and got results with plenty of volume output. I then plugged a turntable in and immediately notice that the output volume level to the headphones is quite weak, even with the amp volume maxed out.
My question is then, what is going on ? Is this normal ? Or is there something i can do, eg could it be the PSU or weak tubes ? Or is the amp just wonky ?
Thanks for any ideas or tips !
-john
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Deleted
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Post by Deleted on Dec 4, 2013 0:28:50 GMT
John Most turntables have a low voltage output, often in the vicinity of 300mV. Modern digital sources are 2V RMS. If you wish to use a TT with it, you will need to further increase the output level from the TT, perhaps by using a small preamplifier. Alex
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Post by goubeaux on Dec 4, 2013 2:09:59 GMT
Thanks Alex,
So, Yes this makes sense, is there a recommendation for a simple pre-amp to use in this case ? And or what are the specs I need to look for in tracking down one that will meet my needs?
Thanks -john
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Post by Deleted on Dec 4, 2013 4:03:42 GMT
Thanks Alex, So, Yes this makes sense, is there a recommendation for a simple pre-amp to use in this case ? And or what are the specs I need to look for in tracking down one that will meet my needs? Thanks -john Hi John I can't make a suggestion there, as I am a DIY person. As you don't need too much additional gain there, perhaps 4 to 6 times amplification? I would check ebay to see if there is something suitable at a reasonable price. Alex
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Post by Deleted on Dec 4, 2013 7:31:56 GMT
A very cheap option would be to find a QED Discsaver. It's a battery powered RIAA correction filter for moving magnet cartridges on record players,essential for vinyl playback and offers some amplification as well.
You can get these for literally a few pounds.
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Nigel
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Post by Nigel on Dec 31, 2013 20:44:40 GMT
Or use the tape out section from an integrated amp with a moving magnet facility.
You could always buy a second hand Cambridge 640p phono stage which sounds mighty fine to me and can be potentially upgraded by Arkless electronics when funds permit.
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Post by PinkFloyd on Dec 31, 2013 22:21:05 GMT
Or use the tape out section from an integrated amp with a moving magnet facility. You could always buy a second hand Cambridge 640p phono stage which sounds mighty fine to me and can be potentially upgraded by Arkless electronics when funds permit. Good to see you mate Hope all is good with you. Mike.
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Nigel
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Post by Nigel on Dec 31, 2013 23:25:52 GMT
Fine thanks mate. Hope things are sweet up north too.
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