Author Topic: VOCA DCX 101 (Read 10679 times)

janitor_fish · « **on:** Jul 04, 2005 at 01:32 PM »

Anyone tried to audition VOCA CDX 101 Superamp?

Chito C. · « **Reply #1 on:** Jul 04, 2005 at 02:00 PM »

Punta ka dito pre.

http://www.wiredstate.com/forum/viewtopic.php?t=6693

janitor_fish · « **Reply #2 on:** Jul 04, 2005 at 02:06 PM »

Here's a few Specs:

Dynamic Range: 100 wpc into 8 ohms
   200 wpc into 4 ohms
   400 wpc into 2 ohms

   -You hear soft, quiet passages of music just as clearly as strong passages, even at various volume levels.

Frequency Response :20 hz -20 khz, +-0.00db .

   -it reproduces completely all recorded low notes as well as high notes without any distortion in slow reverberations of bass when played together.

Tonal Balance : You hear low range, mid-range and high-range sounds equally well, without favoring any frequency range at the expense of another(accurate full frequency range)

Clarity : You can hear instruments separately as opposed to blended together. You can discern exactly what instrument is being played and also how it is being played.

Smoothness/Harshness: THD -0.001%
   -You don't hear sound that was not originally recorded no hissing, no humming,no wavering vibrato or other distorion that wasnot there originally.

The Soundstage: 3-D Sorround sound stereo.
   -This is the audio reproduction of the performance stage, You hear where the sound of various instruments is coming from whether on the left or right, front or back. It also recreates the recording environment, you can feel the ambience of the cathedral, the concert hall or the open air stadium wherever the piece was originally recorded.

john5479 · « **Reply #3 on:** Jul 09, 2005 at 09:41 PM »

what a shame

aHobbit · « **Reply #4 on:** Jul 12, 2005 at 07:02 PM »

what's that?

good figures!

an amplifier is an audio compromise.
a speaker is a much worse audio compromise.
so what speaker is friendly to this DCX?
and what music genre can it really play with excellence

to make such figures and description meaningful

aaron1274 · « **Reply #5 on:** Aug 02, 2005 at 11:23 AM »

who's selling this product? any reviews?

bumblebee · « **Reply #6 on:** Aug 02, 2005 at 11:29 AM »

Scam iyan. Parang yung water-fueled engine.

Chito C. · « **Reply #7 on:** Aug 02, 2005 at 11:43 AM »

basahin nyo dun sa wiredstate forum. Nagpademo sila nauwi sa karaoke at lasingan.

aaron1274 · « **Reply #8 on:** Aug 02, 2005 at 01:09 PM »

tried going to wiredstate, registered and they sent me email requiring to return their mail thru fax but no contact no was given. how's that? anyway, if it's a scam i better not pursue knowing more of it. Thaks guys.

jerix · « **Reply #9 on:** Sep 01, 2005 at 03:46 PM »

ano kayat ma-invite yang inventor sa isa sa mga listening sessions dito, hehehe

rascal101 · « **Reply #10 on:** Oct 25, 2005 at 04:59 PM »

Mga Sirs,

Tatlong beses ko na pong pinupuntahan iyung inventor ng Voca CDX 101. Tuwing tinatanong ko ng technical di po makasagot. Marami siyang mga sinasabi tungkol sa kanyang mga literature tungkol sa mga specifications kaya lang di ko alam kung naiintidihan niya ang sinasabi niya. Katunayan nga po eh nag pa pa design siya ng power supply sa akin pang car stereo kaya lang problema ko ay hindi niya ma i specify ng maayos ang gusto niya. Paano ko magagawa iyung design. Lagi niyang sinasabi na tatanungin daw niya kay ganito ....

Mantakin niyo mayroon siyang "discovery" na naka patent daw kaya lang ... hindi niya kayang i-discuss. Pwede ba iyon??? Kung ikaw ang gumawa at naka patent wala dapat problema i discuss di ba?

For all I know iyung 3d effect ng amplifier niya eh sirketong nakopya lang sa internet. 3 months ago dami kong nakita sirketo habang nag se search sa google. Eto pa ... may mga taga wiredstate na bumisita at nadismaya ... Mga piyesang ginagamit niya mukhang galing sa Raon lahat. Ok lang sana kung may mga magagandang caps o di kaya ayos ang PCB at PCB layout ...

Huwag niyo na pong pag aksayahan ng panahon ang Voca CDX 101.

ATJr. · « **Reply #11 on:** Oct 25, 2005 at 05:19 PM »

he is just one example of "predators out there" preying on suckers that are easily led to believe in snake oils!

in general, i would be carefull of those who have bussines interests to promote!

gutchy · « **Reply #12 on:** Oct 26, 2005 at 12:52 PM »

muntik nko mabiktima nito.. dba sir rascal?

thanks to this forum..

Inventor ng Amp na walang alam sa electronics kahit basic.. patented pa!
..totoo kaya???

Power supply was my first project in college how come an inventor like this
can't even design for his amp..huh!

av_phile1 · « **Reply #13 on:** Oct 26, 2005 at 04:07 PM »

There's a World Intellectual Property Organization on the net. Tried searching the patent section for the name "carlos casas." Surprisingly, there's one. But the invention is entirely different. And the name that came out was a certain Carlos Casas Gomila. Not a pinoy. Maybe someone can verify this.

ATJr. · « **Reply #14 on:** Oct 26, 2005 at 06:33 PM »

Quote

Dynamic Range: 100 wpc into 8 ohms
200 wpc into 4 ohms
400 wpc into 2 ohms

an amplifier such as this must have rails of +/-50volts, the amps' psu must be able to sustain this rail even at 4 and 2 ohms!

this means that at 400watts per channel at 2 ohms, the power draw on the 220volt line must be around 1400watts!

if i were to design this amp with this spec, that amp would weigh in at no less than 20kgs.!

by looks of it he must be using an smps!

gutchy · « **Reply #15 on:** Oct 26, 2005 at 09:03 PM »

its not a swithing power supply sir 2ny linear type lng cguro yun using small transformer para mas tipid..hehe

When we went there with sir rascal101 to audition the unit and ask some technical question.. nagulat talaga ko kc wala syang alam, wala syang masagot.. How much more designing a SMPS.. Ano kaya ung patented sa Design niya?

Anyway, naka2-awa pa rin sya.. I just hope that this post will reach first those who have interest in this amp to serve as a warning...

Weng! · « **Reply #16 on:** Oct 26, 2005 at 09:12 PM »

what can u say about his amp sir sa pag audition nyo?

gutchy · « **Reply #17 on:** Oct 26, 2005 at 09:56 PM »

using his dai-ichi speaker, infairness maganda tumunog ung amp nya but for the price of P70k.. mura na raw sya compared to a krell or bryston amp..hehe

Sheffield drive ung test cd na dala nmn at that time.. maganda pa tumunog ung Sansui AU-D907 para sa akin.. para kc syang nka-enhanced ng AC-3 or ung 3D effect sa PC.. kya parang may phase shifting sa ear mo.. kya nya sinabi na all-in-one that you dont need a home theater amp kc virtually 5.1 na raw ung amp nya.. say mo? tipid sa speaker dba?hehe..

Weng! · « **Reply #18 on:** Oct 26, 2005 at 10:02 PM »

ang mahal naman pala

ATJr. · « **Reply #19 on:** Oct 27, 2005 at 10:56 AM »

hindi yung price eh, the mere fact that he seems to be misrepresenting something is the issue! imho

rascal101 · « **Reply #20 on:** Oct 27, 2005 at 12:04 PM »

Tatlong beses din kung pinasyalan si Mang Carlos. Gandang ganda ako nung simula ... tsk tsk. Buti na lang kay Sir Gutchy at natauhan ako ...

Nakakaawa nga siya pero kaawaawa naman tayo kapag pinatulan natin siya. Php 60k para sa piyesang galing sa Raon. Baka nga nakaka Php 2k lang siya overall.

Kung gusto nating tulungan si Mang Carlos dapat nating payuhan siya na ang panloloko sa kapwa ay hindi gawain ng mabuting tao (sa 2 beses kong binisita siya naggaling daw siya sa simbahan). Madasalin pa naman siya ... Ang tanong ... kanino siya nagdadasal???

docsialu · « **Reply #21 on:** Nov 13, 2006 at 06:30 PM »

I think the voca amp is getting high praises at the nov 2006 audio show, is this the same one being mentioned in this thread?

Jagner · « **Reply #22 on:** Nov 13, 2006 at 06:56 PM »

Quote from: docsialu on Nov 13, 2006 at 06:30 PM

I think the voca amp is getting high praises at the nov 2006 audio show, is this the same out being mentioned in this thread?

better read it again

But seriously, I guess I'm the only other person (aside from qguy) that had to stay in the DIY room during that time as I have to make sure all the other equipment be not touched while the VOCA amp is in session

The verdict: Well the amp is OK.... but If it goes beyond 5K am not buying it

docsialu · « **Reply #23 on:** Nov 13, 2006 at 06:59 PM »

ok, i just saw a lot of guys at wiredstate raving about the amp

tama ka, mali ata basa ko dun sa thread, hehe

frootloops · « **Reply #24 on:** Nov 13, 2006 at 07:10 PM »

I wonder how all that specs fitted in that shoebox?

JojoD818 · « **Reply #25 on:** Nov 13, 2006 at 10:29 PM »

I missed the VOCA at the show, some interview with the guys at the DIY room say that it's not crap, but it's not that great too.

What makes other members boil is the claim that it is the best.

ATJr. · « **Reply #26 on:** Nov 14, 2006 at 11:06 AM »

Come to think of it, it is not really the amp that you listen to, but rather the speakers, don't you think so?

qguy · « **Reply #27 on:** Nov 14, 2006 at 11:25 AM »

I heard the voca amp at the show...

things that I liked about this amp,

it had a bass boost

switch at the back BUT its placed in between the speaker terminals

.. bass lovers would find this very usefull, compared to the loudness button on some amp which increases the highs and lows, this one just increases the lows.. its a welcome feature for me as I love bass...

I like the small size of the amp.

I like the large heatsinks on both side of the amp

Surprisingly there is no bass, treble and Balance knobs...

nitpicking

will someone please remove those large red lighted power switch !!!

The Volume and input selector was different color and size, I would prefer matching vu and input selector knobs.

As mentioned the bass boost is at the back in between the loudspeaker terminals.

The casing was black, the screws were silver

The sound
its a decent sounding amp

BUT

its does not warrant a price of 70K, maybe 10K would be a fair price

Jagner · « **Reply #28 on:** Nov 14, 2006 at 04:20 PM »

qguy,

what it did is acutally boost the mid-bass, giving you a punchy sound... quite Ok for pop and the electronica.

Other comments:

Now other things why I will not buy it for 70K:

The looks (Honestly, the Raon made amps are better looking... he knows it... we pointed this out to him)

The terminals: for 70K, at least you should be getting premium RCA plugs and 5-way gold plated binding posts, Ni hindi kumasya yung DIY Chris Ven Haus Cat5 cable doon sa slot

The design.... he said that he is not using filters in his amp (well, so do I ... I'm using a Direct Coupled 2a3 SET amp, and it doesn't sound like that

..... hmmmm baka pangit tumunog SET amp ko

) (Di na siya nakafollow up ng sagot nung sinabi ko ito... )

By the way, he also has his own invention.... his own "turbosound" speakers, using his own patented speaker design..... but.... he told me how he designed it... and am not telling

Finally, he asked for my number and he'll give me a call if he needs to consult us on upgrading his VOCA amp

What the heck, I gave it to him

JojoD818 · « **Reply #29 on:** Nov 14, 2006 at 06:41 PM »

Jon,

Isa ba siya sa naghahanap sa akin sa DIY room?