Author Topic: cd-r king DVD-2018 reviews & tweaks (Read 602 times)

efren · « **on:** October 13, 2011, 11:53:35 AM »

a trip to cd-r king store i spotted this small DVD player worth 880 pesos, i needed a CD player in my work table so i bought it, unpacking it at home i hook it up to my tube amp, to my disgust my tube amp sounded like a gainclone, too bright and harsh, hooking it to my class A solid state it sounded even worse...

the player, RCA cable & 5V power supply included

slightly larger than a CD case

so i decided to mess around with its audio circuitry, an op-amp feeds the output jacks, how about by-passing the op-amp?....

here is the two e-caps straight from its D/A converter

the tweaks made, replace the e-caps with a new one, bypass the op-amp at the expense of a lower voltage swing at the output (i'm using a high impedance tube per amp anyway so this would never be a problem

the blue & green jacks will now be the audio out

a few listening tests....now much better, 75% of harshness is gone, anyway, i don't expect it to sound like a high end CD player, what do you expect from 800 pesos

now covering up, oopps, i tear up the warranty seal, there goes my three month service warranty

a player not bad if you perform these tweaks / mods, no issues on the video though,...
Before the tweak i'd rate it 2 out of 10 after tweaking i'll give it 6 out of 10

Summary: nice cheap daily audio/video player that can run even on batteries, but not recommended for serious hi-fi listening

Philippine Electronics Forum · « **on:** October 13, 2011, 11:53:35 AM »

ditchie · « **Reply #1 on:** October 13, 2011, 12:04:30 PM »

plus 1 sis

Philippine Electronics Forum · « **Reply #1 on:** October 13, 2011, 12:04:30 PM »

pEN DoTA · « **Reply #2 on:** October 13, 2011, 01:29:52 PM »

+1 ka din sa akin master efren.

Philippine Electronics Forum · « **Reply #2 on:** October 13, 2011, 01:29:52 PM »

efren · « **Reply #3 on:** October 13, 2011, 02:38:57 PM »

salamat mga sis

Philippine Electronics Forum · « **Reply #3 on:** October 13, 2011, 02:38:57 PM »

??? · « **Reply #4 on:** October 13, 2011, 08:08:46 PM »

Napunta pala kaagad sa operating table.

+1 rin sa review sir efren. Saka sa modification.

Philippine Electronics Forum · « **Reply #4 on:** October 13, 2011, 08:08:46 PM »

your most RIDICULOUS man :) · « **Reply #5 on:** October 13, 2011, 08:15:42 PM »

galing +1

Ikasamoko · « **Reply #6 on:** October 13, 2011, 08:20:46 PM »

What I salute the most is the desoldering pump...

I can see that it serves you well for so many years...and I bet walang 100 petot yan..but damned tough! yun din gamit ko at worth talaga...

efren · « **Reply #7 on:** October 13, 2011, 09:33:50 PM »

Quote from: Kasamiko on October 13, 2011, 08:20:46 PM

What I salute the most is the desoldering pump...

I can see that it serves you well for so many years...and I bet walang 100 petot yan..but damned tough! yun din gamit ko at worth talaga...

right sir, binata pa ako nyan, if my memory was right it cost me 65 pesos sa Deeco Marcos hi-way, now my daughter is 9 years old ayos pa sya, tinataktak lang pag napuno na