YAY!!!


My T-amp can't sing without one.


Care to share some with us? I know you have a few in your 'hidden' folder.

Now we're into buffer stage eh? You guys are too fast!!

grandspy,
My t-Amp needs a pre too!

hah! my 'hidden' folder.. I have lotsa there.. only a few warrant to be built..

OK, I'll bring some printouts next week for you guys to have a look...
Going to JP shortly.. hopefully can get my buffer pre-amp ready for the TT session

Use a passive pre (volume pot only) if you all want to test out the actual potential. An active preamp will only color up the sound to some extent and not reveal its true potential (after whatever mods you all may have done).
I'll let you all know if I can make it. Thank you for your kind invitation.

Y.C.,
Is your stepped attenuator 'useable' in this case?

jazzy939: how was the JP trip?

It was great!
Met metalmania there and we 'walkabout' the whole area.. pointing to him where to get what..

I got ALL my required components.. some not required but too good to pass also we bought!
Sunday gonna be bz day..

too bad i cant go today to meet u guys, just went there yesterday

next time we should plan a meeting at JP also, more like a walk-through for parts. possible to take pictures of shops to share info with forumer.

i am running 680uF 63V caps at power supply to replace the stock 220uF, so far i cant judge any subtle changes on SQ. maybe due to my wooden ears.

Wah...good...jazzy has a new profession now.....tour guide to JP only...get a yellow school bus and a driver. charge RM10 sorang and go touring around JP. he'll show you which shops sells cheap, which shop should be avoided, which shop sells rare jewels and which have good looking ah moi.....

This post has been edited by gabanyayaya: Oct 11 2008, 08:11 PM

How do you integrate the amoi into the T-amp equation?.. you young flers?...must have amoi factor. Jazzy..am I right or not?.

.....

yes jazzy I am looking for some pre-amp kits, prefer with Mid tone control beside Bass and Treble.

This post has been edited by ongbs: Oct 11 2008, 10:38 PM

Good idea.. most of my JP trips are impromptu thing.. but my trip minimum once a month but depends on what projects I am doing, it can be a weekly affair

wui, there are other factors, namely your other equipments in the audio chain that may or may not reflect the changes..

Very right!

ongbs,
there several pre-amp kits in JP, some I have bought and tried. Not bad really price around RM50-60 with tone controls!
All you need is to add an appropriately rated transformer and a casing. All in I'd say around RM100.
I think there is one with 'midband/midrange' control.. but PCB only... a bit on a high side,price wise.. another RM20 max for components.
Still even without a 'midrange' control that can be included with minimum parts.. just another band pass filter
If you're interested, I'll check it out the next time when I'm in JP.



This post has been edited by jazzy939: Oct 11 2008, 11:24 PM

Btw, what preamp circuit are u building, bro jazzy?

Could it be a OP-amp based preamp or fully discreet circuit like Pass Lab ?

wui,
I am a discrete lover.. so it's a discrete buffer pre-amp..
opamps are too easy.. and I just don't really like the sound..somewhat 'artificial'.. especially those 'jelly beans' opamps..

I've always thought opamps are nearly always lower noise, less prone to HF radio interferences and more accurate (which doesn't always translate to better sound) than discreet which anyone is going to have a tough time in the layout and implementation which will contribute to a variety of problems. Preamps is the next most difficult stage to build up to achieve a high standard. Of course the worst is a phono stage. The smaller the signal amplitude, the harder to deal with.
Having said that, there's so many opamps to play with and its entirely up to you for your own flavor. It's tough to tune discreet components.

True to a certain extend! Somehow I like the 'long' way
Anyway it's 'too accurate' nature sometimes does not go well with my taste.. Not that I am dismissing the opamps entirely!
At this point of time, just wanna 'play' with discretes.. having a first hand experience beats reading and hearing about other people opinion!
At any rate I do have several opamps and circuit to play-play too!
BUT my passion is really with tubes..

This post has been edited by jazzy939: Oct 12 2008, 12:45 AM

I have a feeling a carefully chosen simple tube preamp can make the T-amp more musical as it'll give it some color and with more warmth..or a tube buffer in front of it?...the X-10D?....hahahahh...drool again....heheheh!.

Ohh rub it in!

A simple tube pre-amp/buffer did crossed my mind bsl.. do you have any recommendations/lead?

time to make corrections after 'lil mistake..

Its quite possible to clone the X-10D. Nothing very complicated and you need a 12V tranny with voltage double rectifier for the B+. Remember that Ebay HK DIY site that sells the X-10D PCB kit? You get the same exact layout. The original X-10D does NOT contain super quality pcb or whatever. The DIY kit could be even better quality.
All in all, it may work out to be cheaper than the original X-10D and you can even add a ALPS volume pot after the buffer stage.