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#301 | |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Quote:
share some crwon xls2000 photo.
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high efficiency high frequency high power level,www.csinewave.com |
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#302 | |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Quote:
Many friends care our new G36D amp, First version have tested in last days, revised second version going on now, finished amp will come on soon. added specs: 1.Multilayer PCB version , sound well. 2.Specific 100V or 220v auto switch. 3.dual TAS5630B chip inside.4ch or 2.1ch easy change 4.full functions remote control 5.ultra low EMI output inductor assembled, especially suit for radio signal amplify attached first version main board and rear panel silk drawing here. Good ideas or suggestions are welcome.
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high efficiency high frequency high power level,www.csinewave.com Last edited by authlxl; 30th October 2012 at 03:19 PM. |
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#303 | |
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diyAudio Member
Join Date: Oct 2012
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Quote:
I probalbly have USB Audio out with my new setup (using Android Stick). Do you have an USB to Coaxial SPDIF board or box? Have seen pictures on your shop at Aliexperess but not any converter besides the digital transmitter. I still plan to use the G300DS and build up a Power-Media-Player... ;-) Cheers! Andy |
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#304 |
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diyAudio Member
Join Date: May 2007
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I tried a Sinewave Genius G300V21 recently, and found that with some ordinary speakers, the background noise (like hiss with attenuated HF content) was audible at the listening position. It was only after I switched to a pair of very low sensitivity speakers (82dB 1W/1m) that the noise was reduced to an "acceptable" level (still audible but barely perceptible at the listening position).
IMO, these amps still need additional work to improve noise filtering before they have a place in an audiophile-level system. Noise should not be audible at the listening position in a high-quality audio system. Other impressions: Very well-controlled bass, even a slightly over-damped sound. These amps have very little sonic signature of their own through the midrange and treble, and certainly no 'sweeteners' or added warmth. If anything is wrong with the voicing of your speakers, you will hear it with this amp. Detail and texture are excellent. I hope that Sinewave can address the noise problem with the G300V21 implementation of the TAS5630 soon, perhaps in a new revision of the PCB, because otherwise these would be excellent amps and a great value. Ancillary equipment: Marantz CD5004 as transport, Musical Fidelity V-DAC, Mark Levinson No. 38 preamp. With my typical mid-1990s Hafler power amp, this system is silent, with no noise audible until about 1-2" from the speakers.
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If it works, but you don't know why it works, then you haven't done any engineering. Taterworks Audio (nothing for sale) Last edited by Taterworks; 5th November 2012 at 02:03 AM. |
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#305 | |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Quote:
if you heard hiss noise from speaker with our g300v21 board with normal speaker, pls check case shield, because signal input loader resister are 1Mohm, very high input impedance.we suggest you can assemble it in one case as shield. G300V21 main specifications: S/N > 100db Dynamic Range>102dB Noise voltage:28uVrms (A-weight,AES17filter) Channel Separation: >84dB Frequency Response: +/-0.5dB if want to drive high sensitivity speaker, over 100db/m ,pls let us know, we have other board with very high S/N(>120dB).cost high price high.our customer use it to oil well logging, loader sensitivity>130dB.
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high efficiency high frequency high power level,www.csinewave.com Last edited by authlxl; 5th November 2012 at 02:42 AM. Reason: revise |
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#306 |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Finally we finish our G36v1.2 amp board test,sound excellent,works stable, very low temperature rise after 24hours burning-in .
First batch finished amp will finish this week.paste some main board pics here.
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high efficiency high frequency high power level,www.csinewave.com Last edited by authlxl; 5th November 2012 at 03:31 AM. |
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#307 | |
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diyAudio Member
Join Date: Jun 2011
Location: Copenhagen
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Quote:
I bought two Sinewave G300V21 modules with the intention of using them to build active 2-way speakers. 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. However, I have another problem with the G300V21 modules. They don't switch on every time power is connected. Sometimes I have to turn them on and off five or ten times before the green light comes on. Have you experienced this problem too? I have tried to get help from Sinewave, but despite being very help, language barriers are making the communication difficult. Kind regards, Soren |
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#308 | |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Quote:
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).
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high efficiency high frequency high power level,www.csinewave.com Last edited by authlxl; 5th November 2012 at 12:08 PM. Reason: revise |
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#309 | |
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diyAudio Member
Join Date: May 2007
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Quote:
I'm interested in continuing to investigate these affordably-priced modules, and I'll probably try to get one of these G300V30 modules once they are available.
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If it works, but you don't know why it works, then you haven't done any engineering. Taterworks Audio (nothing for sale) Last edited by Taterworks; 5th November 2012 at 12:38 PM. |
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#310 | |
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SINEWAVE ELECTRONICS CO.,LTD
diyAudio Member
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Quote:
Thanks again!
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high efficiency high frequency high power level,www.csinewave.com |
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