<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">you all are amazing, thanks so much for the info!!<br><br><div dir="ltr">sent from outer space</div><div dir="ltr"><br><blockquote type="cite">On 24 Aug 2021, at 23:19, Vinicius Brazil via Synth-diy <synth-diy@synth-diy.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">+1 with bd139/140<br></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br> <table style="border-top:1px solid #d3d4de">
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<td style="width:470px;padding-top:17px;color:#41424e;font-size:13px;font-family:Arial,Helvetica,sans-serif;line-height:18px">Livre de vírus. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank" style="color:#4453ea">www.avast.com</a>. </td>
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<a href="#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"></a></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 24, 2021 at 7:29 PM Brian Willoughby <<a href="mailto:brianw@audiobanshee.com">brianw@audiobanshee.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Looking inside gear that I've owned over the years, I have seen plenty of purpose-designed headphone amplifier chips. I've never designed with them or looked at the pricing, so they might not be the best choice for all situations, but they certainly have plenty of power and the data sheet example circuits will certainly be aimed at driving headphone loads.<br>
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Brian<br>
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On Aug 24, 2021, at 09:49, ulfur hansson via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank">synth-diy@synth-diy.org</a>> wrote:<br>
> hello all!<br>
> <br>
> i've been getting mixed results for a few yeara using standard opamp circuits to drive headphones for my projects. oscillations randomly seem to occur, noise issues that disappear if i use nice outboard preamp etc...<br>
> <br>
> is there a more juicy/capable solution anyone can think of? THAT corp line drivers? discrete transistor drivers?<br>
> <br>
> any thoughts would be greatly appreciated :)<br>
> -ulfur<br>
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