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-   -   Which T-amp and which speaker? (http://www.diyaudio.com/forums/class-d/236201-t-amp-speaker.html)

a3aan92 18th May 2013 09:00 PM

Which T-amp and which speaker?
 
Hi all,

First of all, I want to say I'm new here and I don't know anything about electronics. I do know what a T-amp is, but my knowledge doesn't go alot further than that! I have read and searched a bit on this forum, but haven't been able to find an answer to my questions. My questions are pretty simple actually. The setup would be used somehow as a mobile system, just a speaker with the little t-amp which i can easily connect to a 12v SLA and transport by bike or by car. A good-to-go t-amp could as well be re-used in for example my room, whereas you cannot hook your bookshelf speakers to a boombox.

1) It's probably a very stupid question, but I want to ask it anyway to be sure: would you recommend me buying a ta2024 or ta2020 board if I cannot solder? Can you buy like ready-to-go boards, with the jack cable which goes to your audio input? I guess the best option in my case is just to buy a whole t-amp which is good to go?

2) Which type of TA should i go for?!
- Indeed TA2021
- SMSL
- SURE TA2024C
- Dayton DTA-1

-> Will the extra wattage of the Indeed TA2021 give me noticable more volume than for example the Dayton? What's the best quality and what would give me the loudest setup? Would the extra wattage of the Indeed also use alot more than a TA2024 chip? Would it really drain the battery (SLA 12v 7.2Ah) alot faster or...?

3) Which speakers would you recommend?

I got my inspiration for t-amps actually from this site: Bike Party Sound System - Easy Rear Rack Style

Should I just look at the SPL 1w/1m? What would be the best, 8", 10" or 12"? Would the bigger drivers give me alot more of volume? Should i buy a low budget 12" speaker with 96 or + SPL 1w/1m with alot of wattage or should i rather go for an ok speaker like the Wharfedale Titan 8"? (I think it's ok? :D) Link: TITAN 8 PASSIVE - TITAN SERIES - Wharfedale Pro -> 96 db SPL 1w/1m

Sorry for these questions, maybe they don't belong on this forum cause it's not that 'DIY', but I can't find proper answers and I'd like to get advice from the pro's. :D Thanks for advance!!!

Tekko 18th May 2013 10:15 PM

SMSL FTW!

Bare 20th May 2013 04:00 AM

Tripath went out of production a few years back (2006??)
Yet there are more TA chips currently floating about or built into 'products' than ever before :-)
I recently bought (Guaranteed Real) TA 2020 chips from Arjen Helder.
Guess what.. I was sent what I believe are Fakes as these copies feature gold plated pins. My original/ old TA2020 evaluation chips.. from Tripath just ain't the same ..
Not worth the trouble to chase that Rat's butt though.. But I can Publicize it :-)
IMO there is a 90% chance that any Tripath chip out of Chine or environs, is a poor Copy.
That a path you wish to spend your time on?

a3aan92 20th May 2013 06:56 AM

What are you suggesting, that I should not buy an amp with a TA chip? ^^

suntechnik 20th May 2013 08:31 AM

Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore

a3aan92 20th May 2013 03:43 PM

Thank you, I have read about the Sure boards before. So these wouldn't require any soldering? Which one of these would you recommend? Still a TA2024? I can't use the TK2050 because I'm planning to use a SLA 12v battery (only one). T. he 25W and the 50W chips also need a 14V or higher supplySince these bare boards don't have a volume control, it is controlled by the sound source (mp3 player). Shouldn't it be modded then, or will it be loud enough?

suntechnik 20th May 2013 05:31 PM

TAS5630

2 X 300Watt Class-D Audio Amplifier Board - TAS5630_Class D Amplifier Board_Audio Amplifier and other Audio Boards_Audio_Sure Electronics' Webstore

The link above will provide with full specification and customers feedback PSU 20-50V you may order it from the same site.

48V DC 12.5A 600W Regulated Switching Power Supply_Industrial Switching Power Supply_Boxed Industrial Power Adapter and Chargers and Transformers_Measure Power Adapters_Sure Electronics' Webstore

off: Myself I would suggest implement AB LM3886 + Fe206 back-loaded horn. IMHO best bang for the buck.

a3aan92 20th May 2013 07:16 PM

A horn system would indeed be a nice thing... I can combine a horn-loaded system with a class D amp. Unfortunately the TAS5630 is 2x300 Watt though, which is impossible to power from a 12V battery...

ATAUDIO 20th May 2013 08:05 PM

+1 for the SMSL.
I am using one for semi-pro portable performing and it is great.
It is well built inside, it has a robust aluminum enclosure, it has an output relay and..... it sounds very good to the artists hears!

rhing 28th May 2013 01:17 AM

I recently purchased an SMSL SA-S1 TA2020 T-amp. Overall, I am happy with my purchase. However, I have two issues with this amp.

1. The volume pot is imbalanced at low volume levels. The left channel is stronger than the right channel up to a certain point, and then both channels come in balanced. I raised this issue with SMSL. They would have sent me an entire unit, but I told them it would be fine to send me a replacement pot, and I'll install it myself.

2. The sound is a little brighter than I prefer. A couple other people who have the same amp have said the same on another Web audio forum. For a quick experiment, I added a couple Sonicap Gen 2 0.1uF/250V metallized Polyproprylene (MKP) caps as temporary bypasses to the stock ERO MKT1813 metallized Polyester (MKT) input caps. This really smoothed out the highs and allowed more midrange detail to come through; however, the midrange sounded out-of-phase, especially with female vocals. I've taken the Sonicaps out and the MKT1813 caps sound like they've settled in, but with some recordings the sound can still be bright and shrill. My plan is to replace the ERO MKT1813's with a pair of 2.2uF Mundorf Mcap MKP caps. They will fit inside the chassis and based on prior experience in using these caps, the sound quality should be better too.

Even with these issues, I still like this amp more than my modified Sonic Impact 5065 Gen 2 TA-2024 T-amp and my Arjen Helder TA2020 MkIII T-amp. The amp is capable of smooth, warm sound with a larger and deeper soundstage than the other two amps and I really like the Aluminum chassis. Compared to other fully assembled TA2020 T-amps, this amp has enough room to fit in the Mcaps and has decent components like the Rubycon and Nichicon power supply caps, quality output filter components, and decent connectors.


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