Hypex, or Autocostruire?

Status
Not open for further replies.
Jump to Latest
#21
OK. I am starting to lean towards a pair of AMP11 fed by a single 24v 4.2A Meanwell SMPS.

I do not have space inside the cabinet for 36v, and I want to keep this a one box design, with one power on/off.

If needed, I could go up to 6.2A, or higher if I added a fan.

Do I need anything else?

Can I simply connect line level in, and then attach the speakers to the output?

I assume that they would be happy to share the same power supply?

My DAC does not have an output relay. Problem?
 
#23
dublin78 said:
OK. I am starting to lean towards a pair of AMP11 fed by a single 24v 4.2A Meanwell SMPS.

I do not have space inside the cabinet for 36v, and I want to keep this a one box design, with one power on/off.

If needed, I could go up to 6.2A, or higher if I added a fan.

Do I need anything else?

Can I simply connect line level in, and then attach the speakers to the output?

I assume that they would be happy to share the same power supply?

My DAC does not have an output relay. Problem?
Click to expand...

You should be able to turn the SMPS up to 27V or so with an adjustment screw. Should be worth it.

I doubt you'll need more than 6.2A in "real life"

Yep, you can just hook up ... You might want some kind of volume control. A simple pot is enough, if you want.

They do share power supplies just fine, I've got two Amp6's soldered up back to back, and I just toss one power supply on and they're go.

re. output relay, no, no problem – no gear I have ever had has had any output relay in it 🙂

dublin78 said:
Looking at the datasheets of the Tripath TK2050 and the Hypex 180 module, it appears that the THD of UCD108 @ 70W is 0.05% which is 10x higher than the TK2050 (0.005%).

How significant is this for overall sound quality?

http://www.datasheetcatalog.org/datasheet/Tripath/mXyzwqtx.pdf
http://www.hypex.nl/docs/UcD180HG_datasheet.pdf
Click to expand...

I doubt it has a great effect. THD isn't that bad anyway, at least not at higher power. Lots of THD at low power may indicate a pretty bad amp, though. I'd say that this spec would indicate that the Tripath might sound better though 🙂
 
#25
kristleifur said:
If it's a good implementation of a TK2050, it's going to outclass the TAA4100A by a significant margin. Compared to the TK2050, the TAA4100A is a 4-channel high-current "brute" (albeit with very good sound quality too). The TK2050 Just Sounds Better. Check the distortion specs in the datasheet if you like. Besides the chipset difference, I've seen pretty bad reviews of the Autocostruire Tripath gear.

The TK2050 is going to be on similar footing as the Hypex - the Hypex is a little more clean/clinical, the TK2050 a little more "magic".

If the hifimediy implementation is good. It looks better than the Sure amps, and the Autocostruire stuff. I doubt you'd be disappointed if you bought one and tried.

My favorite amp is the 41Hz Amp4 however, which is the only amp I can emphatically recommend. It's a TK2050 amp, and a reaaaaallly good implementation too. I doubt I'll be building or using any other amplifier for a long while.
Click to expand...

I know it is an old thread. But maybe someone searches for TAA4100A and gets to this page and gets mislead by your answer (like I was): in fact the distortions figures from datasheet are the same.

Just look at the graphs. Take care as the graphs are not in the same order. For TK2050 you have only THD for 8Ohm load, while for TAA4100A , at first you have graph for 2 and 4Ohm. If you look on the next page, the graph for 8ohm/25V it is identical to the graph from TK2050.

I am quite sure it is the same circuit used for both ICs. TK2050 has maybe a little bit of advantage at high powers due to easier power dissipation.
 
#26
#27
tpsorin said:
I know it is an old thread. But maybe someone searches for TAA4100A and gets to this page and gets mislead by your answer (like I was): in fact the distortions figures from datasheet are the same.

Just look at the graphs. Take care as the graphs are not in the same order. For TK2050 you have only THD for 8Ohm load, while for TAA4100A , at first you have graph for 2 and 4Ohm. If you look on the next page, the graph for 8ohm/25V it is identical to the graph from TK2050.

I am quite sure it is the same circuit used for both ICs. TK2050 has maybe a little bit of advantage at high powers due to easier power dissipation.
Click to expand...

I'd like to restate my main point from the original post: TK2050 sounds better than TA4100A. In my opinion! The reference to the distortion figures was meant to back up the claim. Looking more closely, I see that they do not serve as evidence. It is irrelevant to me - I strongly prefer the sound of the TK2050 and TA3020 to other Tripaths. TA4100A is an awesome chip though.
 
#28
I want to build an AMP 11 HV and am somewhat confused about the power supply required for this project. This amp uses a STA517B amplification device, and the data sheet for this component shows a “single-BLT configuration capable of giving 360 W into a 4-Ω load at 10% THD, with VCC = 55 V”. However, it does NOT state how much CURRENT the power supply must provide. Normally, a linear power output stage would require a power supply with +/- 55 volt rails at 10 amps to provide 360 watts into 4 ohms, But the STA517B says it needs only a SINGLE supply with 55 volts at an unstated current capability. What is the power supply current needed to provide the maximum output from the AMP 11 HV?
 
Status
Not open for further replies.
Top Bottom