I keep reading that @ 300 watts its distortion is 10%.
Has anyone pushed it that far and measured it ?
How can it be reduced - like say having a bigger power supply help ? Running it at a lower voltage like closer to 30v 25 amp ?
Or higher voltage like 50v 15 amp ?
It sounds really nice @ low power even with a dinky power supply even with the switches set to high gain. Does not sound over driven at all.
Thanks.
Srinath.
Has anyone pushed it that far and measured it ?
How can it be reduced - like say having a bigger power supply help ? Running it at a lower voltage like closer to 30v 25 amp ?
Or higher voltage like 50v 15 amp ?
It sounds really nice @ low power even with a dinky power supply even with the switches set to high gain. Does not sound over driven at all.
Thanks.
Srinath.
10% THD means that the output is reaching near the supply voltage, IE clipping. Lowering the voltage = lower output power = no change in THD at max output.
OK I'll run it closer to the 50.
How does it sound so good when I have a 20 watt if that - wall wart power supply running it @ 30 v.
I guess since its capable of 10 per channel max, it sounds very clean, its clean @ 10 watts, the distortion goes up closer to 100.
Cool.
Srinath.
How does it sound so good when I have a 20 watt if that - wall wart power supply running it @ 30 v.
I guess since its capable of 10 per channel max, it sounds very clean, its clean @ 10 watts, the distortion goes up closer to 100.
Cool.
Srinath.
IIRC, the specs say 0.1% thd when backed off to 250 watts. Just stay away from max power. Who runs an amp at over 80% output anyway? These are selling at amazon with what looks nice nice components for $70 shipping included!
Amazon.com: Assembled TAS5630 +OPA1632DR 300W Stereo Class-D Audio Power Amp Amplifier Board: Everything Else
Amazon.com: Assembled TAS5630 +OPA1632DR 300W Stereo Class-D Audio Power Amp Amplifier Board: Everything Else
What is opa1632 ? volume control ? I actually would like that, but I am stuffing it into a pre existing chassis, like a pioner ct 2121 or an sx424 chassis, it would really need to be a separate volume pot, not one sitting on the board.
Cool.
Srinath.
Cool.
Srinath.
opa1632 is non-differntial to differerential premplifier, because TAS5630 have analog diff. inputs
i have built all (preamp with 1632 + TAS5630) it have strong power potential 😉 but i have only 120VA transformer used, so i get only 100W to four non distorted
i have built all (preamp with 1632 + TAS5630) it have strong power potential 😉 but i have only 120VA transformer used, so i get only 100W to four non distorted
I am running the Sure TAS5630 board with a 48V 600 Watt Meanwell power supply. I am using an ADCOM Pramp/Tuner and it sounds great at the lower volumes I listen at. I did replace the noisy fan in the Power supply with a much quieter case fan (see my review of the power supply at Parts Express for details). It sounds great so far.
So far, so good...
I have used the same combo (mean well 600w / 48V supply) and the 1 x 600 watts amp board.
I am repairing (or, rather reconstructing) a stage subwoofer (Mackie SRS 1500) with a kaput amlifier board.
The fan in the SMPS makes some noise, but for this application it is of no consequence.
The old PS in the sub was a toroidal 350w transformer, and the old amp was rated 500w @ 3 ohms. So, at least in theory, the new package should be able to deliver more punch than it used to.
It has not been tested live yet, but we have a gig lined up at the end of january, and then we'll find out if it performs as it should. We have one more of these, still in original order, so it is possible to A-B compare the two. All I can say at this point is, it looks really promising. The new amp is actually more silent than the old one - no hum and no background hiss, and it plays at least as loud as it used to.
I have used the same combo (mean well 600w / 48V supply) and the 1 x 600 watts amp board.
I am repairing (or, rather reconstructing) a stage subwoofer (Mackie SRS 1500) with a kaput amlifier board.
The fan in the SMPS makes some noise, but for this application it is of no consequence.
The old PS in the sub was a toroidal 350w transformer, and the old amp was rated 500w @ 3 ohms. So, at least in theory, the new package should be able to deliver more punch than it used to.
It has not been tested live yet, but we have a gig lined up at the end of january, and then we'll find out if it performs as it should. We have one more of these, still in original order, so it is possible to A-B compare the two. All I can say at this point is, it looks really promising. The new amp is actually more silent than the old one - no hum and no background hiss, and it plays at least as loud as it used to.
I don't understand though why TI sells the evaluation boards SO MUCH more expensive...
TAS5630PHD2EVM Texas Instruments | Mouser
TAS5630PHD2EVM Texas Instruments | Mouser
TAS 5630 - powered 15'' sub on the road.
At this point, we've been on the road with the sub, played a couple of gigs with it.
On the technical side, the sub still has a problem. Apparently there's also a problem with the preamp / filter circuit, as the high pass output is way to low. This has no bearing on the signal (low pass) fed to the TAS amplifier, however.
The fan in the Mean Well supply does makes a bit to much noise, and I would caution those who are considering a domestic application of the ps/amp combo. The fan is definitely to loud for living room environments. And it's running all the time. I think I saw a post on the Parts Express forum on how to replace the fan with a more quiet unit, and I would definitely try it. For stage use, however, it's not an issue.
So, how does it perform? Really well is the answer!
It has more output than the original configuration, much more dynamics, and all in all, sounds drastically more "alive and kicking". Really. It's not a subtle "feeling", it is instantly noticeable when we crank it up to around 12-03 o'clock. Kick drum sounds dull in the unmodified sub, compared to the rebuilt one.
This is a subwoofer, mind you, so the distortion figures aren't really that much of an issue.
However, we are certainly far from driving the amp up to 90%-100% of its output, so my guess is that we're not experiencing THD over 1%.
One final issue I'd like to share; for some reason, the input of the TAS amp board has a DC drift of about 0,2V-0,5V (it seems to fluctuate a bit). I've coupled it to the preamp via a buffer circuit and a cap, so it doesn't affect the circuitry of the preamp. Be advised of this however, as it may pose a problem for some preamps. I've measured DC at the output, and there is no DC present there, so I guess it's filtered out somewhere along the amp's signal path.
Summary: The amp is unbeatable at it's price. PS makes way to much noise for domestic use. Easy, almost fool proof set up. Powerful, dynamic, and responsive sounding. Documentation provided is adequate.
At this point, we've been on the road with the sub, played a couple of gigs with it.
On the technical side, the sub still has a problem. Apparently there's also a problem with the preamp / filter circuit, as the high pass output is way to low. This has no bearing on the signal (low pass) fed to the TAS amplifier, however.
The fan in the Mean Well supply does makes a bit to much noise, and I would caution those who are considering a domestic application of the ps/amp combo. The fan is definitely to loud for living room environments. And it's running all the time. I think I saw a post on the Parts Express forum on how to replace the fan with a more quiet unit, and I would definitely try it. For stage use, however, it's not an issue.
So, how does it perform? Really well is the answer!
It has more output than the original configuration, much more dynamics, and all in all, sounds drastically more "alive and kicking". Really. It's not a subtle "feeling", it is instantly noticeable when we crank it up to around 12-03 o'clock. Kick drum sounds dull in the unmodified sub, compared to the rebuilt one.
This is a subwoofer, mind you, so the distortion figures aren't really that much of an issue.
However, we are certainly far from driving the amp up to 90%-100% of its output, so my guess is that we're not experiencing THD over 1%.
One final issue I'd like to share; for some reason, the input of the TAS amp board has a DC drift of about 0,2V-0,5V (it seems to fluctuate a bit). I've coupled it to the preamp via a buffer circuit and a cap, so it doesn't affect the circuitry of the preamp. Be advised of this however, as it may pose a problem for some preamps. I've measured DC at the output, and there is no DC present there, so I guess it's filtered out somewhere along the amp's signal path.
Summary: The amp is unbeatable at it's price. PS makes way to much noise for domestic use. Easy, almost fool proof set up. Powerful, dynamic, and responsive sounding. Documentation provided is adequate.
i have an eye on those newer yuanjing boards.
they have 2.0, 2.1, 1.0 boards available.
i need at least three channels.
so my idea is to buy one 2.1 board like this:
Opa1632dr tl072 tas5630 2.1 300w+150w+150w class D Digitalverstrker 470uf/100v in Tpa3116: brandneuen mitsubishi m65831: verwendet Spezifikation: Arbeitsmodus: Klasse dStatische aktuellen: 6 aus integrierte Schaltung auf AliExpress.com | Alibaba G
i don't want anything from the onboard frequency filters and mono-summer.
would it work with the signals for each channel fed directly into the 'pin 2' of the potentiometers?
i don't like that the 2.1 boards cost as much as (or even less than) a 2.0 board.
but this could be the cheapest solution to get that much power out of single supply dc.
they have 2.0, 2.1, 1.0 boards available.
i need at least three channels.
so my idea is to buy one 2.1 board like this:
Opa1632dr tl072 tas5630 2.1 300w+150w+150w class D Digitalverstrker 470uf/100v in Tpa3116: brandneuen mitsubishi m65831: verwendet Spezifikation: Arbeitsmodus: Klasse dStatische aktuellen: 6 aus integrierte Schaltung auf AliExpress.com | Alibaba G
i don't want anything from the onboard frequency filters and mono-summer.
would it work with the signals for each channel fed directly into the 'pin 2' of the potentiometers?
i don't like that the 2.1 boards cost as much as (or even less than) a 2.0 board.
but this could be the cheapest solution to get that much power out of single supply dc.
Was wondering if you ever got the TAS5630 2.1 amp. I've been looking at it as well but haven't bought it yet. One question I have is: Where are the 5th and 6th inductors for the ".1" channel?
(reviving posts since 1783 heh)
I'm also looking forward on getting one of these:
OPA1632DR TL072 TAS5630 2 1 300W 150W 150W 470uF 100V Class D Digital Amplifie | eBay
Anyone ended up getting one similar?
I'm a little confused about their "tone control". Is it only Bass Treble control with fixed crossover or is it variable crossover? Chinese translations are always a lil messy. 😕
I'm also looking forward on getting one of these:
OPA1632DR TL072 TAS5630 2 1 300W 150W 150W 470uF 100V Class D Digital Amplifie | eBay
Anyone ended up getting one similar?
I'm a little confused about their "tone control". Is it only Bass Treble control with fixed crossover or is it variable crossover? Chinese translations are always a lil messy. 😕
- Status
- Not open for further replies.