hi Andy,

Ok I got the Charlize today. Hooked up to a 9V simple adapter, quite a big
one non switching type, adde3d a 1500 uf cap to the PS, soldered a pair of
input RCA females, and (very barely able to) clip my speaker cable to the
circuit directly, and there is sound!
I used my mono FM tuner ( REL) to drive it to listen just 1 ch. The sound is
mellow on my Rega small floor standing speaker. But it does have a big sound
and good resolution. Then I used it to drive my 755A. Initially the sound is
a bit hard, after a few hours it mellowed down.
For the size, it is very good and convenient amp!
To compare to my tube amps, I think it could easily perform better then most
tubes amp that is not at optimum condition. But it still would not have the
air and weight for a good tube amps that is at optimum condition, and most
tube amps are not operating under optimum condition!! So this little amp
that could take simple power supply from 9-12V could sound better the those
tube amps indeed!
I will build a proper power supply, tweak it a bit then listen a bit longer.
What I could see is that the output printed circuit traces from the coils
are a bit too narrow and definitely it would not be good for the sound.
Unless it is designed that way to produce certain characteristic of the
sound.


Best rgds

William Lee

----- Original Message -----
From: "andy2667" <andy2667@...>
To: <doctorjohn_CheapTubeAudio@yahoogroups.com>
Sent: Tuesday, November 29, 2005 11:01 PM
Subject: [doctorjohn_CheapTubeAudio] Re: Class T amp


> Hi Top,
>
> Not heard the SI amp. The Charlize is said to be much better than the
> SI. FYI, the midrange of the Charlize is on the thick side compared
> with my DRD 300b. Yet, the clarity & resolution is excellent.
>
> Regards
>
> Andy
>
> --- In doctorjohn_CheapTubeAudio@yahoogroups.com, karma barfungpa
> <karmathk@y...> wrote:
>>
>> Howdy Andy,
>> I also tried the T-amp, albit the Sonic Impact varity,
>> modded it,and now it is in another avtar. I was also
>> very impressed with the sound the first time I heard
>> it,it was rather bright and very engaging. However
>> after a while the desire to listen to it diminished.
>>
>> A lot of time the Baritone voice needs to come from
>> the stomach, perhaps also the toukas (As some one once
>> said???), I just felt that the beautiful Baritone
>> coming from the T-amp was from the chest. The T-amp is
>> a Bocelli to the Tube amps Pavarotti.
>>
>> It is still a best buy for a lot of ears.
>> regards
>>
>> Tops
>>
>> --- andy2667 <andy2667@s...> wrote:
>>
>> > Hello DocJohn & Others,
>> >
>> > It seems that this forum is not as active as years
>> > ago. My discussion
>> > on Class-T may a little bit ouside Topic.Just want
>> > to share my
>> > experience in Class-T amp.
>> >
>> > I learnt a lot on tube audio from this forum,
>> > started in tube gears
>> > and settled down on tube amp searching sice
>> > completion of my DRD 300B
>> > from the Welborne Kit. Intended to explore more on
>> > other SET tube amps.
>> >
>> > My recent experience in class T am changed my mind.
>> > I acquired a very
>> > little class-T amp (a complete module need add on
>> > PSU and connectors)
>> > from diyparadise. Tried it and has been amazed.
>> > After a period of
>> > listening, my beloved DRD 300B may need to retire.
>> > Not saying that the
>> > Class-T amp sound better than the DRD300B. They
>> > sound different but
>> > both sound good to the same level. How amazing for
>> > this little class-T
>> > amp. It cost less than the pair of EH300B tubes. It
>> > is still in a
>> > small glimsy plastic box shipped with the amp
>> > module.
>> >
>> > What I need to power up the amp was to solder the
>> > necessary
>> > connector....RCA, Binding posts etc and connect the
>> > amp to a SMPS
>> > (switched mode Power Supply cost HK$1XX).
>> >
>> > The class-T amp is so efficient that it can be
>> > powered by 12V SLA
>> > battery. I think my journey to Tube AMP will stop
>> > here temporary. The
>> > class-T is so compact, small, efficient , flexible.
>> > It sound excellent
>> > too!
>> >
>> > No exotic Power cable, no PSU treatment!
>> >
>> > In my opinion, a new era in Hi-Fi audio will comes.
>> > Hi-Fi Pc, good
>> > class D, battery or SMPS powered gears.......
>> >
>> > By the way, battery powered NOS DAC sound very
>> > smooth and good. Not
>> > much experience in DAC. Has only used some cheapy
>> > CDP and old Philips
>> > CD880.
>> >
>> > I amp now using Class -T main amp, PC + hard disC +
>> > battery powered
>> > USB sound Card as main source, battery powered NOS
>> > DAC. The PC is so
>> > convenient that I will cease investigating LP as
>> > source.
>> >
>> > Hope my experience can provide some insights.
>> >
>> > Andy
>> >
>> >
>> >
>> >
>> >
>>
>>
>>
>>
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