Does this amp need a pre-amp? My modified squeezebox only has a 1v output... It does not have enough drive for my trends ta-10
Does this amp need a pre-amp? My modified squeezebox only has a 1v output... It does not have enough drive for my trends ta-10
I assume that you mean your SB has a passive output stage! If so, a Burson Buffer has been recommended for use between the SB and power amp! It will give you some more gain (anout 6db) as well as increasing the weight and scale of the music.

I have another question. One month ago i have bought a charlize and yeo have recomended me a 100k pot. He said to me that he olso uses this pot.
After that i have readed all this tread, i have understood that it is better a 10k pot.
What have i do? Have i to change 100k pot?
Tnx very much for your help.
Bye
Pier.
After that i have readed all this tread, i have understood that it is better a 10k pot.
What have i do? Have i to change 100k pot?
Tnx very much for your help.
Bye
Pier.
Puffin said:
I'm sorry but i have not found information about pot.
I have a switching power supply that looks exactly like the one in the photo. I didn't get it from eBay but from a local electronics store in Thailand: The only specs are: 12-16V (adjustable), 5A, with 176-264 ACV. It's from www.switching1.com. I use it with Charlize with no problems.
Cae
vt4c,
I love the case you used for your Charlize. Can you tell me the manufacturer and model number and where you bought it?
I have both a Charlize and an AMP6 for which I am trying to find good cases.
Thank you,
Steve
vt4c,
I love the case you used for your Charlize. Can you tell me the manufacturer and model number and where you bought it?
I have both a Charlize and an AMP6 for which I am trying to find good cases.
Thank you,
Steve
Steve,
Got my casing from a local shop here...Send me a private e-mail if you're interested for me to get one for you.... 🙂
Got my casing from a local shop here...Send me a private e-mail if you're interested for me to get one for you.... 🙂
vt4c,
You do not allow PM to be sent to you so I am replying here.
Thank you very much for your kind offer to send an enclosure to me.
I will try to find one on my own first so that I can be more assured of a repeatable source before I ask you to go to any trouble for me. Again, thank you for your offer which I may still accept, but I have not finished looking for an enclosure on my own yet.
Best regards,
Steve
You do not allow PM to be sent to you so I am replying here.
Thank you very much for your kind offer to send an enclosure to me.
I will try to find one on my own first so that I can be more assured of a repeatable source before I ask you to go to any trouble for me. Again, thank you for your offer which I may still accept, but I have not finished looking for an enclosure on my own yet.
Best regards,
Steve
Excellent enclosures.
Hi, Steve:
After looking around for months, I finally settled on IAG chassis for my monoblocs. I ordered a set from the IAG website, but a month later I hadn't received them, so I canceled my order and ordered a set of 737Us from ATI. They arrived within two weeks, and later ATI sent me an additional set of end sub-panels for free, as I didn't need an IEC mains plug cutout.
These are really nice anodized aluminum enclosures and very easy to work with. Even given the shipping costs they're a reasonable buy. The ATI url is "http://www.atiresearch-anodized.com/". I'd recommend them, but also note that VT4C is an excellent supplier. Very responsible and reasonable prices on high quality products.
George
Hi, Steve:
After looking around for months, I finally settled on IAG chassis for my monoblocs. I ordered a set from the IAG website, but a month later I hadn't received them, so I canceled my order and ordered a set of 737Us from ATI. They arrived within two weeks, and later ATI sent me an additional set of end sub-panels for free, as I didn't need an IEC mains plug cutout.
These are really nice anodized aluminum enclosures and very easy to work with. Even given the shipping costs they're a reasonable buy. The ATI url is "http://www.atiresearch-anodized.com/". I'd recommend them, but also note that VT4C is an excellent supplier. Very responsible and reasonable prices on high quality products.
George
Dear all
Found it forgotten, in an obscure drawer - the Charlize amp
Bought it a long time ago, as you may think, and now I want to give it a new life, for some TL speakers, Fostex based...
I wish to have an preamp in front of it, for 3 sources CD/tuner/AUX, but reading all 28 pages of the thread I'm still unable to understand what's the Charlize input impedance - as I want to match it with some 6n1P, cathode follower, tube preamp
I know the last reply was in 2007 but maybe....someone can enlighten me on this matter?
Many thanks!
Found it forgotten, in an obscure drawer - the Charlize amp
Bought it a long time ago, as you may think, and now I want to give it a new life, for some TL speakers, Fostex based...
I wish to have an preamp in front of it, for 3 sources CD/tuner/AUX, but reading all 28 pages of the thread I'm still unable to understand what's the Charlize input impedance - as I want to match it with some 6n1P, cathode follower, tube preamp
I know the last reply was in 2007 but maybe....someone can enlighten me on this matter?
Many thanks!
Did you try searching for the ditparadise site?Dear all
Found it forgotten, in an obscure drawer - the Charlize amp
Bought it a long time ago, as you may think, and now I want to give it a new life, for some TL speakers, Fostex based...
I wish to have an preamp in front of it, for 3 sources CD/tuner/AUX, but reading all 28 pages of the thread I'm still unable to understand what's the Charlize input impedance - as I want to match it with some 6n1P, cathode follower, tube preamp
I know the last reply was in 2007 but maybe....someone can enlighten me on this matter?
Many thanks!
https://diyparadise.com/w/charlize-744/
Hi Andrewbee
It was the first place to look. Unfortunately beside the fact that they recommend a 50k pot "You can wire the input to a volume pot of 50kohm to make it an integrated amp or just plain RCA sockets." and some obscure info, somewhere in the deep web, stating around 10K as input impedance, nothing more...
And more is my understanding that the input impedance is related/given by the components used in the input stage. Hence the question
all the best
It was the first place to look. Unfortunately beside the fact that they recommend a 50k pot "You can wire the input to a volume pot of 50kohm to make it an integrated amp or just plain RCA sockets." and some obscure info, somewhere in the deep web, stating around 10K as input impedance, nothing more...
And more is my understanding that the input impedance is related/given by the components used in the input stage. Hence the question
all the best
I think I used a 10K pot in mine. I can check later. It is a fantastic amp. I use mine as a reference. Mine has the airfare inductors. I also have a 41Hz amp (6)? The one with the same 2020 Tripath chip and it too sounds really good. I think there is something special with the 2020 Tripath.Hi Andrewbee
It was the first place to look. Unfortunately beside the fact that they recommend a 50k pot "You can wire the input to a volume pot of 50kohm to make it an integrated amp or just plain RCA sockets." and some obscure info, somewhere in the deep web, stating around 10K as input impedance, nothing more...
And more is my understanding that the input impedance is related/given by the components used in the input stage. Hence the question
all the best
Confirmed 10KI think I used a 10K pot in mine. I can check later. It is a fantastic amp. I use mine as a reference. Mine has the airfare inductors. I also have a 41Hz amp (6)? The one with the same 2020 Tripath chip and it too sounds really good. I think there is something special with the 2020 Tripath.
Thank you Andrewbee - based on the specs sheet, a friend of mine stated that it might have around 200K input impedance - hence I need about 10 times less ( thumb rule) output impedance on the tube preamp) . I will post the next steps once I will decide upon them
Many thanks
Many thanks
The Charlize2 was my main amplifier for about 5 years. I just looked up my old notes, and I was told by the Yeo, the amp's designer, that the input impedance is 20k.
I just Googled "TA2020 input impedance" and I see a reference to the Amptastic having an input impedance of 22k -
https://theartofsound.net/forum/archive/index.php/t-19679.html
So 20k sounds right.
I just Googled "TA2020 input impedance" and I see a reference to the Amptastic having an input impedance of 22k -
https://theartofsound.net/forum/archive/index.php/t-19679.html
So 20k sounds right.
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