Tas5630+smps+aluminum case finished!new year coming!

[Taterworks]

Originally Posted by soren5

...Like you, I'm pleased with their clean sound and controlled bass. I also experienced the same high noise-floor as you describe, but I figured it must be related to the source or a grounding issue since the noise disappears if the source is disconnected.

...

Kind regards,
Soren

Hello Soren,

Just to follow up on this, I connected a HF compression driver to the output of one channel of my G300V21 sample and was able to hear the previously noted background hiss clearly, with no source connected. The hiss seemed to be greater at low volume levels, and decreased through the middle of the volume range but near the upper end of the volume scale the noise increased again. This was independent of having a source connected to the inputs.

Hopefully the new revision of the G300 board will be quieter, and I appreciate Sinewave's quick attention to our comments. Maybe some changes to the output filtering of the power supply stage will be enough to clean up the amp's sound. Looking through the other modules and boards in this thread, it looks like there are some very smart and ambitious designs in here. I also particularly like the black PCBs. The products are also very imaginative yet practical - I can think of plenty of applications for the Genius G33D.

[authlxl]

Originally Posted by Taterworks

Hello Soren,

Just to follow up on this, I connected a HF compression driver to the output of one channel of my G300V21 sample and was able to hear the previously noted background hiss clearly, with no source connected. The hiss seemed to be greater at low volume levels, and decreased through the middle of the volume range but near the upper end of the volume scale the noise increased again. This was independent of having a source connected to the inputs.

Hopefully the new revision of the G300 board will be quieter, and I appreciate Sinewave's quick attention to our comments. Maybe some changes to the output filtering of the power supply stage will be enough to clean up the amp's sound. Looking through the other modules and boards in this thread, it looks like there are some very smart and ambitious designs in here. I also particularly like the black PCBs. The products are also very imaginative yet practical - I can think of plenty of applications for the Genius G33D.

Hello! Taterworks, our G33D amp update nearly,additional functions list below:
1.headphone plug insert mute main speaker output function, it is DSP function.
2.revised rear panel as 2mm ,so user can connector wire to 5way binding connector easier .
3.revised PCB route to G33DV3 version, higher S/N.

latest batch of G33D amp will finish 10-15days, we are appreciated for our customers give us so good suggestions in developing procedure.

we think G33D is realistic type , and G36D is Hi-End type.

[authlxl]

We take some G36D photo from our line today, share here.Assembling silver panel now,black panel have not finished now.

[authlxl]

Features:

1. Optical /Coaxial/USB/Analog 4source switchable .
2. High power version :4x200w/4ohm 4CH mode or 2x200W+2x200w(sub) 2.1CH mode.
3. LCD display system and only one rotary encoder control system.
4. all 24bit 192kHz Hi-End system. professional audio DSP core inside.
5. Ture USB 2.0 interface , 24bit/192kHz in win7 and OS system.
6. Dual TAS5630B PHD chip inside, 4ch mode or 2.1 mode software control.
7. Multilayer PCB design, high power density and very well EMI
8. Auto Fan speed control system, no fan cooling noise at standby status.
9. High efficiency system ,very low temperature rise after 24hours continue working.
10. High power SMPS support, global AC supply.110v or 230v auto switch.
11. Perfect remote control function, concise remote controller with infrared ray.
12. Ultra low EMI design and parts ,suit for Radio signal amplify.
13. Hi-end Headphone amplify system, Headphone plug insert main out mute function.
14. At 2.1 CH mode ,subwoofer channel cut off frequency and gain adjust alone.
15. SPDIF out function, suit for record and cascade connection.

[soren5]

Originally Posted by Taterworks

Hello Soren,

Just to follow up on this, I connected a HF compression driver to the output of one channel of my G300V21 sample and was able to hear the previously noted background hiss clearly, with no source connected. The hiss seemed to be greater at low volume levels, and decreased through the middle of the volume range but near the upper end of the volume scale the noise increased again. This was independent of having a source connected to the inputs.

Hopefully the new revision of the G300 board will be quieter, and I appreciate Sinewave's quick attention to our comments. Maybe some changes to the output filtering of the power supply stage will be enough to clean up the amp's sound. Looking through the other modules and boards in this thread, it looks like there are some very smart and ambitious designs in here. I also particularly like the black PCBs. The products are also very imaginative yet practical - I can think of plenty of applications for the Genius G33D.

Thanks for your comments. Have you had any problems with the G300 not always switching on when power is connected? I have two boards and they both have this problem. I've tried the amps in different homes, even the in two different countries, and the problem persists.

[authlxl]

Originally Posted by authlxl

Thank you for your reply here. G300V21 turn off and on time a bit long, about 10-30s. because it have special circuit to protect the TAS5630 chip.soft on and fast repeat reject .
we will upgrade this performance in later version, we will make G300V30 version, we will apply special SMPS and make G300V30 as ultra lower interference with radio .it is bigger upgrade.
sorry for the inconvenient!

plz give us more good suggestion about it, we are plan to make two type,one stereo output(2BTL) and the other mono (PBTL).

we have answered your questions here.

G300V21 turn off and on time a bit long, about 10-30s. because it have special circuit to protect the TAS5630 chip.soft on and fast repeat reject .

New versions G300V30 will finish next week,
Main Features:
1.Power out:
2x240Wrms/4ohm(1%THD+N)
2x125Wrms/80hm(1%THD+N)
2.High Power Resonant SMPS and fixed 50V DC/12A support.
3.Four layer PCB, well routing and better EMI .
4.Fast on and off .
5.Special PWM out good indicator circuit.
6.Variable Fan cooling system, 12V DC brushless fan necessary.
7.110V or 230Vac power supply.
8.Auxiliary Power out: +/-15v @200mA and +5V@500mA
9.High level active MUTE function.
10. Boot noise suppression and without output relay soft start circuit


Regards

[soren5]

Originally Posted by authlxl

we have answered your questions here.
Regards

I saw your answer, but it didn't make much sense to me. The problem is not related to a "slow" start. If I leave the power on for 30 seconds or more the modules still don't turn on. I have to try turning them on/off 5-10 times before the green light comes on. It seems strange that I have two boards with this same issue. That's why I asked Taterworks if he had experienced the same problem with his G300 module.

[authlxl]

Originally Posted by soren5

I saw your answer, but it didn't make much sense to me. The problem is not related to a "slow" start. If I leave the power on for 30 seconds or more the modules still don't turn on. I have to try turning them on/off 5-10 times before the green light comes on. It seems strange that I have two boards with this same issue. That's why I asked Taterworks if he had experienced the same problem with his G300 module.

we think your G300v21 have problems or your ac supply not good, pls send mail to us to repair or replace.Thanks!

All the products pass our AC power supply adaptability test before sending.

[authlxl]

Some customer asked for finished 1000W-2500W professional class D amplifier ,we developed one new series class D amp , now in testing. we have 2000DU or 1000DU modules have approximate functions, but it is mono type and narrow range AC power supply.
we found crown XLS Drivecore series have similar functions,but it is narrow range AC power supply too, it is complex for our customers to apply it in different country.
so we decide develop one new class D amp , testing now.

Main Features :
1. Independent excitation 300kHz osc signal
2.Output MOSFET body diode blocking circuit
3.High efficiency interleaved PFC stage and high efficiency resonant half bridge SMPS.
4.High speed DSP processing system, process audio signal and all protect issue.
5.Multi-layer PCB, works stable.
6.All in one board design.

Main Specifications:

1. 1000W/2000W/2400W@4ohm(1%THD+N)
2. 100Vac-265Vac 50 or 60Hz
3. Sensitivity: 0dBV
4. Frequency Response: 20-20KHz +/-0.5dB
5. Damp Factor:>200
6. Balance input
7. 2 single end or 1BTL mode
8. Variable fan cooling system.
9. S/N:>100dB

[Taterworks]

Originally Posted by soren5

Thanks for your comments. Have you had any problems with the G300 not always switching on when power is connected? I have two boards and they both have this problem. I've tried the amps in different homes, even the in two different countries, and the problem persists.

My sample took only about 5 seconds to click on, which seems like an OK duration for making sure that the power supply is stable. 120V here.