DIYed Headphone Amp

[jlow 0]

Dear fellow diyers,

 

I have diyed a Morgan Jones Headphone Amp (Pics coming soon).

 

I have test run it for close to 20 hours without any fault on my cheapo tester headphone.

 

Now I need some recommendation on what would be a good headphone match for this amp if I do 40% vocals/jazz, 40% instruments/orchestra, 20% anything/everything.

 

Any suggestions welcome and appreciated. Many thanks.

[neutralzz 0]

i've one too except i've dismantled the power supply for use in another project

 

its a good sounding amp if you've weeded out all traces of hum (hey even commercial tube headphone amps hum.. )

 

i used to use mine with beyerdynamics they go pretty well.

 

whats your value of R7?

[jlow 0]

i've one too except i've dismantled the power supply for use in another project

 

its a good sounding amp if you've weeded out all traces of hum (hey even commercial tube headphone amps hum.. )

 

i used to use mine with beyerdynamics they go pretty well.

 

whats your value of R7?

 

I used 24k for R7. As for hum wise, I dont think there is any but I believe better headphones may tell a better story.

 

Used 6N1P throughout and the current draw too high on the heaters that it pull the voltage below 6 volts. Swopped to 6922 and its much better. Trying out 6DJ8 or 6N23 once I lay my hands on them. Current config is 6n1P on Pre and 6922s on the push pull stage. DC Heaters stablise at 6 volts which is ideal.

 

Almost 30 hours of burning in now, dodgy parts should have been burnt by now. This one looks good.

 

About the BeyerDynamics, what model/price and where to get it?

[neutralzz 0]

I used 24k for R7. As for hum wise, I dont think there is any but I believe better headphones may tell a better story.

 

Used 6N1P throughout and the current draw too high on the heaters that it pull the voltage below 6 volts. Swopped to 6922 and its much better. Trying out 6DJ8 or 6N23 once I lay my hands on them. Current config is 6n1P on Pre and 6922s on the push pull stage. DC Heaters stablise at 6 volts which is ideal.

 

Almost 30 hours of burning in now, dodgy parts should have been burnt by now. This one looks good.

 

About the BeyerDynamics, what model/price and where to get it?

 

you're using DC heaters?

 

i've had good aural results with a 6dj8 on pre and a pair of cheap 6n11

 

you can consider beyer dt880 etc. sounds pretty sweet on the mj amp

[jlow 0]

you're using DC heaters?

 

i've had good aural results with a 6dj8 on pre and a pair of cheap 6n11

 

you can consider beyer dt880 etc. sounds pretty sweet on the mj amp

 

Yep using DC Heaters cause don't want to waste too much time bucking hum if it happens.

 

Bought the Grado SR60i this afternoon so got to give the Beyer a miss.

 

Here are the pics.

 

 

 

 

 

 

Apologies for lack of standard in the pics as they are taken on the kitchen top using a phone camera. But then if the wife don't mind, I don't think anyone should.

 

jlow

[neutralzz 0]

is that a sprague orange drop cap i see there?

 

i use a pair too

 

how you like the grado with this amp? i once had an sr80 with it but it wasnt quite my cup of tea so i went beyers

[loop_ 0]

wow this amp is old school.

 

may I ask where you got the case from?

[neutralzz 0]

SRPP is "old school" but still sounds good as ever

 

but my main preference now is still SESS (single end single stage)

[jlow 0]

wow this amp is old school.

 

may I ask where you got the case from?

 

 

SLT Basement corner shop with a lot of LEDs. Bought years back...

 

SRPP is "old school" but still sounds good as ever

 

but my main preference now is still SESS (single end single stage)

 

I am never into headphone amps but more into building tube gears. Years back some guy I know asked me to build one for him but I never did after hoarding the parts. This is one that I find in the store room which I rebuilt as a past time after I am done with tube stuff.

 

is that a sprague orange drop cap i see there?

 

i use a pair too

 

how you like the grado with this amp? i once had an sr80 with it but it wasnt quite my cup of tea so i went beyers

 

 

Yep they are the Sprague Orange. I salvaged them from my EL34PP after I switched to Hovlands and subsequently Murdorf.

 

Have yet to do really critical listening. But I tested both the SR60 and SR80. Find the SR80 warmer but more detailed. A tad slow for my prefereence. The SR60 on the other hand is faster and has more dynamics but obviously losing out on details. So the decision. Overall a good buy I would suppose.

 

jlow

[neutralzz 0]

any non-headphone tube amps to share?

[jlow 0]

any non-headphone tube amps to share?

 

Quite a bit, it goes as follows:

 

EL34 Push Pull modified with input trans

 

1626 Single Ended (Made 2 of these and still liked them)

 

2A3 Single Ended (Sold when shifting house)

 

6GA4 Single Ended (Jap version of 2A3)

 

6AH4 Single Ended

 

5687 Anode preamp (Made 3 of these and always like them)

 

6SN7 Cathode Follower preamp (Made 2 of these)

 

WE417 WOT preamp

 

TDA1541 DAC

 

Philip CD Pro 2 with CS4397 DAC

 

Enough already, now stopped...

[zer061zer0 0]

Kind of find you familiar jlow, was thinking if you used to own a pair of fostex fe103 in red cabinets.

[jlow 0]

Yes its handmade by myself. But have already stopped making speakers already.

 

Still the same jlow

 

Kind of find you familiar jlow, was thinking if you used to own a pair of fostex fe103 in red cabinets.

 

[zer061zer0 0]

I was the one who bought them, no wonder i find your nick so familiar

[jlow 0]

Wow! Long time...

 

I was the one who bought them, no wonder i find your nick so familiar