Hy guys,
I can hardly wait for my T-Amp, my Marantz PM7200 needs repairing and will be back in about 2 weeks, and I took the oportunity to try out an order the Sonic Impact at last. My curiosity grows every time I read some rave comments of this little thing, and I'm already planning to offer it a metal case, alps poti, rcas and so on. Reading the promising reviews I ask myself which part of the T-Amp is so great, the input or the output stage ? This is important to me because I think about using the T-Amp a a power amplifier and hook it up to maybe a Rotel preamp, in order to get tone controls, remote control etc.
But I don't know whether that would be a good idea, because so far I believe the T-Amps strength lies in its simplicity, and I wouldn't like to mess up the signal with an usual preamp. That would be the case if the t-amps strenght would be the preamp section. So what do you think about using a good quality rotel or so preamp with the t-amp ?
Greetings,
Chris
I can hardly wait for my T-Amp, my Marantz PM7200 needs repairing and will be back in about 2 weeks, and I took the oportunity to try out an order the Sonic Impact at last. My curiosity grows every time I read some rave comments of this little thing, and I'm already planning to offer it a metal case, alps poti, rcas and so on. Reading the promising reviews I ask myself which part of the T-Amp is so great, the input or the output stage ? This is important to me because I think about using the T-Amp a a power amplifier and hook it up to maybe a Rotel preamp, in order to get tone controls, remote control etc.
But I don't know whether that would be a good idea, because so far I believe the T-Amps strength lies in its simplicity, and I wouldn't like to mess up the signal with an usual preamp. That would be the case if the t-amps strenght would be the preamp section. So what do you think about using a good quality rotel or so preamp with the t-amp ?
Greetings,
Chris
Oh, by the way, speakers are T+A Stratos F1 2-way bookshelf speakers on arcus stands, rated at 90db and 4 ohms. I guess they will work pretty well with the t-amp...don't you ?
the stock t-amp is a bit bass shy
i have mine modded with stealth as suggested in http://www.michael.mardis.com/sonic/start.html
a good power supply is a must to achieve good sound
at this moment the t-amp is being used as an integrated amp for bedroom listening
i have tried using it as a power amp by maxing the volume and hook up with a pio elite 7.1 ht receiver driving the front L and R bookshelf 2 way speakers with 8" mid/bass. the result is very good.
i have mine modded with stealth as suggested in http://www.michael.mardis.com/sonic/start.html
a good power supply is a must to achieve good sound
at this moment the t-amp is being used as an integrated amp for bedroom listening
i have tried using it as a power amp by maxing the volume and hook up with a pio elite 7.1 ht receiver driving the front L and R bookshelf 2 way speakers with 8" mid/bass. the result is very good.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I'm also planning to apply the stealth mod to my t-amp, for that I just ordered 2x Mundorf-MCap 2,20 uF 400V, 3%. Those are made for crossover building, but I suppose them to work, or did I miss something ?
Does the stealth mod improve bass performance ?
@cpu 8088: I would love to see your t-amps interior !
So far I pretty much know what to do, but I still have one question about the power supply. I'm planning to use the t-amp with a regulated voltcraft 13,8V 4A psu, but don't know how to connect the psu to the t-amp. Should I use an adapter and connect it directly to the psu connector on the t-amp, or should I take those cables leading to the batteries an put some adapters on them and connect those with the 2 cables from the voltcraft ?
thx
Does the stealth mod improve bass performance ?
@cpu 8088: I would love to see your t-amps interior !
So far I pretty much know what to do, but I still have one question about the power supply. I'm planning to use the t-amp with a regulated voltcraft 13,8V 4A psu, but don't know how to connect the psu to the t-amp. Should I use an adapter and connect it directly to the psu connector on the t-amp, or should I take those cables leading to the batteries an put some adapters on them and connect those with the 2 cables from the voltcraft ?
thx
ciorbarece said:
Yes. You should also put a better electrolytic onboard (C10). When you do, jump the positive leg of the new cap over like in the photo below. You'll see that i have slipped a bit of red insulation over the cap lead.
This jumper gives a more direct, lower resistance path from the PSU to the supply rail.
Attachments
Thanks a lot for the advice and the picture, if I got that right you would suggest to apply the stealth mode AND exchange the onboard input caps with better ones ? That would make 4 caps...right ?
And what about the power supply, are 2A sufficient or should I go for the 4A Voltcraft psu ?
I have a 12V 0,8A switching psu around here, that would fit with the t-amps psu connector, but I know that its underpowered with only 0,8 A and my question is if that would damage the t-amp ?
Sorry bout so many stupid questions, this is my first diy project, gotta learn...
Greetings
And what about the power supply, are 2A sufficient or should I go for the 4A Voltcraft psu ?
I have a 12V 0,8A switching psu around here, that would fit with the t-amps psu connector, but I know that its underpowered with only 0,8 A and my question is if that would damage the t-amp ?
Sorry bout so many stupid questions, this is my first diy project, gotta learn...
Greetings
inside my modded t-amp is a mess and no exotic replacement caps either.
i am no good diyer just a newbie. i only followed pana's great advice and ideas
regarding power supply i am using a 12v 2a regulated one. i have modded the input to use a solid xlr type connection which you can see at the back of the case. if you can find a 12vdc 5a power supply that would be ideal.
beware of flimsy power supplies stated as 12vdc but actually higher. that would fry your t-amp
definitely the stealth mod improve bass. check measurements in michael mardis website
next stage for me is to have another mod t-amp as power amp for home theatre front LR speakers
i am no good diyer just a newbie. i only followed pana's great advice and ideas
regarding power supply i am using a 12v 2a regulated one. i have modded the input to use a solid xlr type connection which you can see at the back of the case. if you can find a 12vdc 5a power supply that would be ideal.
beware of flimsy power supplies stated as 12vdc but actually higher. that would fry your t-amp
definitely the stealth mod improve bass. check measurements in michael mardis website
next stage for me is to have another mod t-amp as power amp for home theatre front LR speakers
You will need 3 caps. 2 for the inputs (left-right) and one electrolytic onboard.
A 2 amp power supply will probably be enough if your speakers are 8 ohms. During most music the amps draws about 0.3A But loud passages will draw much more. 3 amps seems to be plenty at 12V. Most regulated supplies will give you a brief burst of much more current than rated. How much and how well depends on the supply.
A lower current rating will not hurt anything - except the bass. 😉
Be sure you get a regulated supply. Stay at 12 volts unless you add cooling to the chip.
The XLR used by cpu8088 makes a very nice power connector. A cheaper and easier connector is a 1/4" phone jack.
A 2 amp power supply will probably be enough if your speakers are 8 ohms. During most music the amps draws about 0.3A But loud passages will draw much more. 3 amps seems to be plenty at 12V. Most regulated supplies will give you a brief burst of much more current than rated. How much and how well depends on the supply.
A lower current rating will not hurt anything - except the bass. 😉
Be sure you get a regulated supply. Stay at 12 volts unless you add cooling to the chip.
The XLR used by cpu8088 makes a very nice power connector. A cheaper and easier connector is a 1/4" phone jack.
Hy guys,
please take a look at this modded t-amp:
http://www.yurigagarin.ch/lazy-index.php?file=Baikonur/
The guy managed to include a source selector...
Great !
please take a look at this modded t-amp:
http://www.yurigagarin.ch/lazy-index.php?file=Baikonur/
The guy managed to include a source selector...
Great !
Nice box! Not crazy about the wiring though....
So that 's what Youri is doing now that he is retired from being 1st man in space. 😉 I wonder if Laika helped him....
So that 's what Youri is doing now that he is retired from being 1st man in space. 😉 I wonder if Laika helped him....
Yeah, those crazy russians... 😀
I very much like the source selector, the guy told me he dismembered a cheap source selector from ebay, again...crazy russians...you know, but very nice !
I very much like the source selector, the guy told me he dismembered a cheap source selector from ebay, again...crazy russians...you know, but very nice !
cpu8088 said:
Can you tell me more about this setup, I am confused by it 🙂 I have some sorta Sony 6.1 receiver, just wonder if t-amp could become part of the system 🙂
my pioneer receiver has 7 pre out which i hook up front LR with the t-amp and the rest with a 5 channel power amp then i recalibrate distance delay and sound level
Hi,
saturday morning I got my t-amp, I let it play continuously until now, and it's still running...
It sounds unbelievable ! This is just what I say to anybody when I have to describe the little gem's sound, unbelievable...😱
You just get a kinda "live feeling", the amount of details is just...unbelievable, like I said before, I'm repeating myself again, like I did for the last few days !
Using it with a 13,8V Voltcraft psu 2A, at my listening level never drains more than 1A, with hip hop music at high listening levels I pushed it till 1,5A...the 2A psu works fine after all.
With my T+A Stratos F1 and my modded marantz cd53 I never managed to force the t-amp into clipping. I've been quite happy with my Marantz PM7200, but it is clearly outclassed by this baby here called t-amp.
If I were the president I would give order for everybody to own one...😀
saturday morning I got my t-amp, I let it play continuously until now, and it's still running...
It sounds unbelievable ! This is just what I say to anybody when I have to describe the little gem's sound, unbelievable...😱
You just get a kinda "live feeling", the amount of details is just...unbelievable, like I said before, I'm repeating myself again, like I did for the last few days !
Using it with a 13,8V Voltcraft psu 2A, at my listening level never drains more than 1A, with hip hop music at high listening levels I pushed it till 1,5A...the 2A psu works fine after all.
With my T+A Stratos F1 and my modded marantz cd53 I never managed to force the t-amp into clipping. I've been quite happy with my Marantz PM7200, but it is clearly outclassed by this baby here called t-amp.
If I were the president I would give order for everybody to own one...😀
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