Y148 AMP MODULE

[elevator]

A little mod I made to this amp, with a great improvement Its to change the input cap with a 4700uf/25v, in my case with a Panasonic FC series that I had around...

Hi guys,
why you would want to use a "gold-audio-high-end-bla" cap for power supply filtering is beyond me. I'd rather go for lowest impedance and high ripple, eg Nichi HV or HD series.
-E

 

[prezden]

Sure TPA3110

I have been playing around with a couple of these little guys from Sure and must say that I am quite impressed with them.😀

2 X 8Watt Class D Audio Amplifier Board - TPA3110_Audio Amplifier Boards_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore

 

[Bill poster]

Ordered a Y148 amp from Dealextreme on 24th jan and havent received it as yet. The tracking thing is next to useless. It cd be that it not their fault but they arent replying to my messages.

 

[Bill poster]

ok got through to dealextreme 'live chat'; they advised another week or 2 or get back to them again if hasnt arrived.

will keep u posted and hopefully it was

 

[gychang]

Anybody still working with those.
I got one and i think it's better than my TA2024.

I have TA2024 and impressed, u think is better?, which model of TA2024 do u have?

thanks,

 

[Bill poster]

received the Y148, finally. Apologies to Dealextreme, they got back to me and said there was a delay and to be patient, and it arrived 3 days later.

Its tiny, around 3x2 inches. No instructions, can anyone advise on a basic power supply?

 

[Bearman]

The voltage can be 12v to 16v. I have used a laptop PS and Lithium batteries and they both sound great. This little amp can get really good volume. Nice having a pot already installed too.

 

[Bill poster]

Thanks bearman I have just come back to this project now- I'm using a pair of old bandor 50s in a sealed pc speaker design

question, is there a way to manipulate the bass by modding or adding a simple circuit ?

 

[themasck]

to improve the YDA 148 I tested with a power NUFORCE 15volts, iphone 4 dock FIIO L9, jm lab carat micron
holding in improved low there is more power and the amp is less prone to intreferences

 

[MASAudio]

Y148 Board volume potentiometer elimination

Hello everyone!, I've just joined this great comunity after many month of surfing the site, and I'd like to participate and collaborate.

I have a Y148 module and I'm looking for some help. What I want to do is to desolder the volume potentiometer as I'll be controlling the volume with a digital mp3 player.

But the thing is that after desoldering it I'll need to make the necessary connections. Can you indicate me the necessary and the correct conections?

An externally hosted image should be here but it was not working when we last tested it.

Thanks in advance for all the help!. And forgive me for my poor English.

Best regards from Argentina!.

 

[tamphist]

What I want to do is to desolder the volume potentiometer as I'll be controlling the volume with a digital mp3 player.
..
Can you indicate me the necessary and the correct conections?

Just connect input to output.
http://www.bcae1.com/images/jpegs/potentiometerradioshack01.jpg
Or. Just turn potentiometer to max and leave it there.

 

[MASAudio]

Hi everyone!, well...I'm thinking now to connect a low-pass filter for a subwoofer, so my question is if I can "join" stereo channels on the YDA148 amplifier output to use it as a "mono" amplifier, so both outputs of the amplifier goes directly to one subwoofer. I mean to connect R+ with L+. That will make the wave to be complete?.

Or, is there a way to convert it to a single channel amplifier to gain double power output?

The low-pass filter has L in / Gnd / Rin, and only one output

This is the low-pass filter:

An externally hosted image should be here but it was not working when we last tested it.

Many thanks for all your help!, I'm new with all this haha 😀

 

[MASAudio]

And... this connection/modification can be done in the actual amplifier board?

An externally hosted image should be here but it was not working when we last tested it.

Thanks again!

 

[zoemzoem]

I believe there is a post on how to do that under the y148 listing at the dealextreme website
Tutorial: Enabling monaural mode ? DealExtreme Forum

Hi everyone!, well...I'm thinking now to connect a low-pass filter for a subwoofer, so my question is if I can "join" stereo channels on the YDA148 amplifier output to use it as a "mono" amplifier, so both outputs of the amplifier goes directly to one subwoofer. I mean to connect R+ with L+. That will make the wave to be complete?.

Or, is there a way to convert it to a single channel amplifier to gain double power output?

The low-pass filter has L in / Gnd / Rin, and only one output

This is the low-pass filter:


Many thanks for all your help!, I'm new with all this haha 😀

 

[MASAudio]

Many many thanks for that useful information!, doubts solved!. Regads!