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Class D Switching Power Amplifiers and Power D/A conversion

Adam A7x amp type?
Adam A7x amp type?
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Old 25th January 2013, 04:38 PM   #11
dazed1 is offline dazed1
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Just got my A7x, omg i'm blown away, so much power!!! its insane!!!! never expected to listen such a powerful sound from "small" speakers, the bass is great, deep and has punch, which kinda speak of AMP quality power/design as well i guess?

I pushed them hard for few songs at +10dB with ASIO driver sofware volume control on max, (bit perfect which max out the volume - bypass windows kernel) and no sign of any distortion! speechless!

They sound bigger, deeper, stronger, play more effortless then the then A3x, bigger soundstage, like 3D, low mids are insane, bass is impressive, and the highs are more defined.....its like night and day difference really...

Thanks all for helping me make my choice, the A7x are amazing speakers, if they have tons of output, and no distortion, does that means that the AMP/power design is good, or its more complicated then that, i'mt not worried at all, i just want to learn a bit
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Old 25th January 2013, 05:55 PM   #12
Baldin is online now Baldin  Denmark
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I'm sure thay are good and sound super, but your statement of Power and Insane ...... we're talking about a speaker with a 7 inch driver and an AMT!!!!!
Hope you'll get a chance to listen to a big speaker

On the other hand driving a speaker through an electronic filter and with a separate power amp for each driver is just such a better way than lossy filters in passive speakers and single amp
Kind regards Baldin
Visit www.sensibleaudio.dk or read latest news on Baldin's Blog
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Old 25th January 2013, 05:59 PM   #13
dazed1 is offline dazed1
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Thanks for the answer, you mean Air motion transformer?

By my standards, and for my small room, 4x4 they are very powerful, because i used A3x before
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Old 30th March 2017, 04:06 PM   #14
DigitalService is offline DigitalService  Portugal
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Default Need Help For Speaker ADAM A7X

Good afternoon, my name is Josť Rodrigues, I have a small technical assistance company in Portugal. I have speaker Šudio of ADAM , model A7X, with the audio output circuit burned. This equipment was delivered to me for repair, but already stirred by other people who changed some components. I am asking for your help, if I could indicate the original reference of the amplifier IC of the SUBWOOFER. Position of the IC is U150. I have already searched the web on several websites for the technical service manual, but I was not successful. If someone has the technical service manual, I would not mind buying it as it would be a great help. From now on I am grateful for your help. Thank you, with best regards, Josť Rodrigues
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