DIY-Central.com - Go Create something! - PCB Design, Electronics - API Preamp http://www.diy-central.com/ Electronics, PCB, Audio, Recording, Studio - Build, Create, Hacks en-us DIY-Central.com Tue, 01 Jun 2010 19:37:17 GMT newtelligence dasBlog 1.9.6264.0 info@fivefish.net info@fivefish.net http://www.diy-central.com/Trackback.aspx?guid=0dba7d2b-07d5-44da-ac2f-d737f4fdfc22 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,0dba7d2b-07d5-44da-ac2f-d737f4fdfc22.aspx DIY-Central.com Administrator
MX5-mk500 Mic Preamp Print E-mail

 

Image 

Meet the newest member of the FiveFish Studios line of 500-Series preamps... the MX5 mk500 Mic Preamp.

Just like it's brother, the X-72mk500, the MX5 Mic Preamp features the same UK-made Carnhill Input Transformer to deliver that big, punchy, lots of low end mojo sound. 

A custom made output transformer takes care of balancing the beefy outputs, and also adding it's own sonic signature.

Mil-spec Grayhill 12-stepped gain switch, and a separate Output Trim knob gives you fine control over this preamp. Lighted push-button switches gives a visual indicator for the status of your 48V phantom power, -20db Pad and Polarity Reverse switches. 

Custom-made, solid machined aluminum knobs gives the MX5 preamp an expensive look. But don't let it's features and expensive looks fool you, the MX5 is priced very attractively to fit the budget of every home, project or recording studio while still delivering on performance and features! 

You also have the option to use Discrete Op Amps (DOA) like 2520/990 type opamp with the MX5 preamp. Just swap out the stock chip, with a Discrete OpAmp for a slightly different flavor.

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Photo showing the MX5 preamp along with our SC-1mk500, X-12mk500 and X-72mk500 Mic Preamps.
 
The MX5 sound is BIG, PUNCHY, and HUGE.  It adds a deep, nice, WARM coloration to the sound. Really deep-sounding huge.  And low frequencies come out punchy and TIGHT... thanks to the UK-made Carnhill Input Transformers.
 
The custom output transformer also gives the preamp a slight mid-forward, smooth sound character. A very fast video buffer driver chips (spec'd at 2000V/usec) drive this custom Output Transformer.
 
You can say the MX5 is a hybrid of our X-12 and X-72 preamp.  The MX5 exhibits qualities that can be found on both preamps - I'm sure you will love this new preamp!
 
MSRP: $625 (with Carnhill/UK Input and Custom-made Output Transformer)

 

Using UK-made Carnhill Input Transformer
Custom Output Transformer
12-step Gain from 22dB to 68dB, at 4dB/step
-20dB Input Pad
High-quality parts
Option to use Discrete OpAmps with the 990/2520 format
Using high-performance chipsets, currently the best chip around
Using High-speed 2000V/us, video buffer, high-current transformer line driver
Using Grayhill switch - high quality mil-spec
with output trim Bourns potentiometer - so you can overdrive the input trafo and be able to trim the output of the pre.
Null offset trimmer adjustment
LED-lighted push buttons for 48V phantom, pads, and polarity reverse
Relay Controlled Polarity Reverse
Relay Controlled -20dB Pad
Soft-start/Ramp-up 48V Phantom Power
Includes on-board voltage regulators
Professional PCB, Rohs PCB with double-sided, plated-through holes, 2oz. copper
with soldermask, silkscreen layout,
Includes everything... 5-LED VU Meter, spacers, screws, knobs


NOTE: The MX5-mk500 Preamp requires an API 500 Series Rack or compatible rack.

You can also use discrete opamps with these preamps.
Discrete OpAmps not provided with preamps.

MX5-mk500 Mic Preamp (INTRODUCTORY OFFER)

 For USA Buyers
For INTL Buyers
$495 -  MX5-mk500 Mic Preamp

 

MX5 Mic Preamp - FiveFish Studios - API 500 Series Lunchbox Preamp http://www.diy-central.com/PermaLink,guid,0dba7d2b-07d5-44da-ac2f-d737f4fdfc22.aspx http://www.diy-central.com/MX5MicPreampFiveFishStudiosAPI500SeriesLunchboxPreamp.aspx Tue, 01 Jun 2010 19:37:17 GMT <table class="contentpaneopen"> <tbody> <tr> <td class="contentheading" width="100%"> MX5-mk500 Mic Preamp </td> <td class="buttonheading" align="right" width="100%"> <a href="http://fivefishstudios.com/index2.php?option=com_content&amp;task=view&amp;id=159&amp;pop=1&amp;page=0&amp;Itemid=113" target="_blank" onclick="window.open('http://fivefishstudios.com/index2.php?option=com_content&amp;task=view&amp;id=159&amp;pop=1&amp;page=0&amp;Itemid=113','win2','status=no,toolbar=no,scrollbars=yes,titlebar=no,menubar=no,resizable=yes,width=640,height=480,directories=no,location=no'); return false;" title="Print"> <img src="http://fivefishstudios.com/templates/js_weblogic_blue/images/printButton.png" alt="Print" name="Print" align="middle" border="0"></a> </td> <td class="buttonheading" align="right" width="100%"> <a href="http://fivefishstudios.com/index2.php?option=com_content&amp;task=emailform&amp;id=159&amp;itemid=113" target="_blank" onclick="window.open('http://fivefishstudios.com/index2.php?option=com_content&amp;task=emailform&amp;id=159&amp;itemid=113','win2','status=no,toolbar=no,scrollbars=yes,titlebar=no,menubar=no,resizable=yes,width=400,height=250,directories=no,location=no'); return false;" title="E-mail"> <img src="http://fivefishstudios.com/templates/js_weblogic_blue/images/emailButton.png" alt="E-mail" name="E-mail" align="middle" border="0"></a> </td> </tr> </tbody> </table> <p> &nbsp;<span class="postbody"> <div style="text-align: center;"><img src="http://fivefishstudios.com/images/stories/MX5MainShot.jpg" alt="Image" title="Image" width="500" border="0" height="333" hspace="6">&nbsp; </div> </span> </p> <p> <font style="font-family: Arial;" size="2">Meet the newest member of the FiveFish Studios line of 500-Series preamps... the MX5 mk500 Mic Preamp.</font> </p> <p> <font style="font-family: Arial;" size="2">Just like it's brother, the X-72mk500, the MX5 Mic Preamp features the same UK-made Carnhill Input Transformer to deliver that big, punchy, lots of low end mojo sound.&nbsp;</font> </p> <p> <font style="font-family: Arial;" size="2">A custom made output transformer takes care of balancing the beefy outputs, and also adding it's own sonic signature. </font> </p> <p> <font style="font-family: Arial;" size="2">Mil-spec Grayhill 12-stepped gain switch, and a separate Output Trim knob gives you fine control over this preamp. Lighted push-button switches gives a visual indicator for the status of your 48V phantom power, -20db Pad and Polarity Reverse switches.&nbsp; </font> </p> <p> <font style="font-family: Arial;" size="2">Custom-made, solid machined aluminum knobs gives the MX5 preamp an expensive look. But don't let it's features and expensive looks fool you, the MX5 is priced very attractively to fit the budget of every home, project or recording studio while still delivering on performance and features!&nbsp; </font> </p> <p> <font style="font-family: Arial;" size="2">You also have the option to use Discrete Op Amps (DOA) like 2520/990 type opamp with the MX5 preamp. Just swap out the stock chip, with a Discrete OpAmp for a slightly different flavor. </font> </p> <div class="mosimage" align="center"><img src="http://fivefishstudios.com/images/stories/MX5lineup.jpg" alt="Image" title="Image" width="500" border="0" height="377" hspace="6"> <div class="mosimage_caption">Photo showing the MX5 preamp along with our SC-1mk500, X-12mk500 and X-72mk500 Mic Preamps. </div> </div> &nbsp;<div align="left"><span class="postbody"> <div style="text-align: center;"> <div align="left"><font style="font-family: Arial;" size="2">The MX5 sound is BIG, PUNCHY, and HUGE.&nbsp; It adds a deep, nice, WARM coloration to the sound. Really deep-sounding huge.&nbsp; And low frequencies come out punchy and TIGHT... thanks to the UK-made Carnhill Input Transformers. </font> </div> <div align="left">&nbsp; </div> <div align="left"><font style="font-family: Arial;" size="2">The custom output transformer also gives the preamp a slight mid-forward, smooth sound character. </font><span class="postbody"><font style="font-family: Arial;" size="2">A very fast video buffer driver chips (spec'd at 2000V/usec) drive this custom Output Transformer. </font></span><font style="font-family: Arial;" size="2"> </font> </div> <div align="left">&nbsp; </div> <div align="left"><font style="font-family: Arial;" size="2">You can say the MX5 is a hybrid of our X-12 and X-72 preamp.&nbsp; The MX5 exhibits qualities that can be found on both preamps - I'm sure you will love this new preamp! </font> <br> </div> </div> <div align="left">&nbsp;<br> </div> <div align="left"> <h5 style="color: rgb(204, 0, 0);"> MSRP: <strike>$625</strike> (with Carnhill/UK Input and Custom-made Output Transformer) <br> </h5> </div> </span> </div> <p> &nbsp; </p> <blockquote>Using UK-made Carnhill Input Transformer<br> Custom Output Transformer<br> 12-step Gain from 22dB to 68dB, at 4dB/step<br> -20dB Input Pad<br> High-quality parts<br> Option to use Discrete OpAmps with the 990/2520 format<br> Using high-performance chipsets, currently the best chip around<br> Using High-speed 2000V/us, video buffer, high-current transformer line driver<br> Using Grayhill switch - high quality mil-spec <br> with output trim Bourns potentiometer - so you can overdrive the input trafo and be able to trim the output of the pre. <br> Null offset trimmer adjustment<br> LED-lighted push buttons for 48V phantom, pads, and polarity reverse<br> Relay Controlled Polarity Reverse<br> Relay Controlled -20dB Pad<br> Soft-start/Ramp-up 48V Phantom Power<br> Includes on-board voltage regulators<br> Professional PCB, Rohs PCB with double-sided, plated-through holes, 2oz. copper<br> with soldermask, silkscreen layout,<br> Includes everything... 5-LED VU Meter, spacers, screws, knobs<br> </blockquote> <p class="style3"> <a href="http://www.fivefishstudios.com/pdf/VU1mk500Assembly.pdf"> <br> </a> </p> <p class="info"> NOTE: The MX5-mk500 Preamp requires an API 500 Series Rack or compatible rack. </p> <p class="info"> You can also use discrete opamps with these preamps. <br> Discrete OpAmps not provided with preamps. <br> </p> <table width="100%" border="0" cellpadding="4"> <tbody> <tr> <td colspan="3" style="width: 50%;" bgcolor="#efefef"> <h4><strong style="color: rgb(204, 0, 0);">MX5-mk500 Mic Preamp (INTRODUCTORY OFFER) </strong> </h4> </td> </tr> <tr> <td style="width: 50%;"> &nbsp;</td> <td align="center"> <strong>For USA Buyers</strong> <br> </td> <td align="center" bgcolor="#ffffcc"> <strong>For INTL Buyers</strong></td> </tr> <tr> <td style="width: 50%;" bgcolor="#efefef"> <h5 style="color: rgb(204, 0, 0);">$495 -&nbsp; MX5-mk500 Mic Preamp </h5> </td> <td align="center" bgcolor="#efefef"> <span style="width: 50%;"> <!----> <table valign="middle" width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td align="left"> <form id="payform" name="payform" action="https://www.paypal.com/cgi-bin/webscr" method="post" target="paypal"> <input name="add" value="1" type="hidden"> <input name="cmd" value="_cart" type="hidden"> <input name="business" value="sales@fivefish.net" type="hidden"> <input name="item_name" value="MX5mk500-PREAMP-ASSEMBLY-USA" type="hidden"> <input name="item_number" value="MX5mk500-PREAMP-ASSEMBLY-USA" type="hidden"> <input name="no_note" value="1" type="hidden"> <input name="cn" value="" type="hidden"> <input name="return" value="http://www.fivefishstudios.com/" type="hidden"> <input name="cancel_return" value="http://www.fivefishstudios.com" type="hidden"> <input name="amount" value="495" type="hidden"> <input name="shipping" value="15" type="hidden"> <input name="shipping2" value="5" type="hidden"> <input name="no_shipping" value="2" type="hidden"> <input name="handling" value="0" type="hidden"> <input name="currency_code" value="USD" type="hidden"> <input name="lc" value="US" type="hidden"> <input name="cpp_header_image" value="http://fivefish.net/diy/images/ppbanner.jpg" type="hidden"> <input name="bn" value="PP-ShopCartBF" type="hidden"> <input name="tax" value="0" type="hidden"> <input name="quantity" value="1" type="hidden"> <input src="http://www.paypal.com/en_US/i/btn/x-click-but23.gif" name="submit" alt="Make payments with PayPal!" type="image" border="0"> </form> </td> </tr> </tbody> </table> </span></td> <td align="center" bgcolor="#ffffcc"> <span style="width: 50%;"> <!----> <table valign="middle" width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td align="left"> <form id="payform" name="payform" action="https://www.paypal.com/cgi-bin/webscr" method="post" target="paypal"> <input name="add" value="1" type="hidden"> <input name="cmd" value="_cart" type="hidden"> <input name="business" value="sales@fivefish.net" type="hidden"> <input name="item_name" value="MX5mk500-PREAMP-ASSEMBLY-INTL" type="hidden"> <input name="item_number" value="MX5mk500-PREAMP-ASSEMBLY-INTL" type="hidden"> <input name="no_note" value="1" type="hidden"> <input name="cn" value="" type="hidden"> <input name="return" value="http://www.fivefishstudios.com/" type="hidden"> <input name="cancel_return" value="http://www.fivefishstudios.com" type="hidden"> <input name="amount" value="495" type="hidden"> <input name="shipping" value="40" type="hidden"> <input name="shipping2" value="15" type="hidden"> <input name="no_shipping" value="2" type="hidden"> <input name="handling" value="0" type="hidden"> <input name="currency_code" value="USD" type="hidden"> <input name="lc" value="US" type="hidden"> <input name="cpp_header_image" value="http://fivefish.net/diy/images/ppbanner.jpg" type="hidden"> <input name="bn" value="PP-ShopCartBF" type="hidden"> <input name="tax" value="0" type="hidden"> <input name="quantity" value="1" type="hidden"> <input src="http://www.paypal.com/en_US/i/btn/x-click-but23.gif" name="submit" alt="Make payments with PayPal!" type="image" border="0"> </form> </td> </tr> </tbody> </table> </span></td> </tr> </tbody> </table> <p> &nbsp; </p> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=0dba7d2b-07d5-44da-ac2f-d737f4fdfc22" /> 500 Series Preamp;API Preamp http://www.diy-central.com/Trackback.aspx?guid=e5bddbb2-9df8-4ecc-9ba4-f8eedfebb76f http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,e5bddbb2-9df8-4ecc-9ba4-f8eedfebb76f.aspx DIY-Central.com Administrator

 IT'S BACK!!! My FIVEFISH STUDIOS CRAZY DEAL SALE again... !!!



LIMITED QUANTITY OFFER! I have designated a certain number of units for this SALE. LIMITED QUANTITIES AVAILABLE. If my stock runs out in 5 days, or 2 days, that's it. The SALE will be discontinued.

SAVE MONEY!!! $300 for a pre-assembled X-12mk500 preamp.... $300 ready-made (not a kit). Hurry and don't miss out again on this offer!

Please allow 3-4 weeks for delivery. We're still waiting for the trafo shipment from the factory. LIMITED QUANTITIES AVAILABLE for this sale. Sale may be discontinued at any time once stock runs out.

Link and BUY button on this page... http://www.fivefishstudios.com

IT'S BACK!!! My FIVEFISH STUDIOS CRAZY DEAL SALE again... !!! http://www.diy-central.com/PermaLink,guid,e5bddbb2-9df8-4ecc-9ba4-f8eedfebb76f.aspx http://www.diy-central.com/ITSBACKMyFIVEFISHSTUDIOSCRAZYDEALSALEAgain.aspx Mon, 01 Feb 2010 20:11:17 GMT <span class="postbody"><a href="http://www.fivefishstudios.com/" target="_blank" class="postlink"><img src="http://fivefishstudios.com/templates/js_weblogic_blue/images/header_logo.png" border="0"></a> <br> <br> &nbsp;<span style="font-weight: bold;">IT'S BACK!!! My FIVEFISH STUDIOS CRAZY DEAL SALE again... !!!</span> <br> <br> <img src="http://fivefishstudios.com/images/stories/X12mk500/X12-mk500-Preamp-2.jpg" border="0"> <br> <br> LIMITED QUANTITY OFFER! I have designated a certain number of units for this SALE. LIMITED QUANTITIES AVAILABLE. If my stock runs out in 5 days, or 2 days, that's it. The SALE will be discontinued. <br> <br> SAVE MONEY!!! $300 for a pre-assembled X-12mk500 preamp.... $300 ready-made (not a kit). Hurry and don't miss out again on this offer! <br> <br> Please allow 3-4 weeks for delivery. We're still waiting for the trafo shipment from the factory. LIMITED QUANTITIES AVAILABLE for this sale. Sale may be discontinued at any time once stock runs out. <br> <br> Link and BUY button on this page... <a href="http://www.fivefishstudios.com/" target="_blank">http://www.fivefishstudios.com</a></span> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=e5bddbb2-9df8-4ecc-9ba4-f8eedfebb76f" /> 500 Series Preamp;API Preamp;Lunchbox Preamp;Recording;X-12 Mic Preamp Kit http://www.diy-central.com/Trackback.aspx?guid=a05111b7-0f9c-4344-9a64-b8d10819b211 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,a05111b7-0f9c-4344-9a64-b8d10819b211.aspx DIY-Central.com Administrator Last October, I held a sale of my X-12mk500 preamps.
 http://fivefishstudios.com/index.php/X-12mk500-Mic-Preamp-Kit.html

These are some of the units that went out to customers... <drool>

Thanks to all my customers that support FiveFish Studios DIY Mic Preamp kits.
Some photos:


from another angle

FiveFishStudios - X-12mk500 Lunchbox (API 500 Series) Preamps http://www.diy-central.com/PermaLink,guid,a05111b7-0f9c-4344-9a64-b8d10819b211.aspx http://www.diy-central.com/FiveFishStudiosX12mk500LunchboxAPI500SeriesPreamps.aspx Mon, 30 Nov 2009 14:41:57 GMT Last October, I held a sale of my X-12mk500 preamps. <br> &nbsp;<a href="http://fivefishstudios.com/index.php/X-12mk500-Mic-Preamp-Kit.html">http://fivefishstudios.com/index.php/X-12mk500-Mic-Preamp-Kit.html</a> <br> <br> These are some of the units that went out to customers... &lt;drool&gt;<br> <br> Thanks to all my customers that support FiveFish Studios DIY Mic Preamp kits. <br> <span class="postbody">Some photos: <br> <img src="http://farm3.static.flickr.com/2539/4104195126_88c71a2626_o.jpg" border="0"> <br> <br> from another angle <br> <img src="http://farm3.static.flickr.com/2733/4103434277_86ac5b2cd5_o.jpg" border="0"></span> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=a05111b7-0f9c-4344-9a64-b8d10819b211" /> 500 Series Preamp;API Preamp;DIY;PCB;Project Kits;X-12 Mic Preamp Kit http://www.diy-central.com/Trackback.aspx?guid=071b35f0-fb56-4e7e-84f3-6c87cc409e6d http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,071b35f0-fb56-4e7e-84f3-6c87cc409e6d.aspx DIY-Central.com Administrator The X-12 preamp kits are now on sale.

I updated the X-12 PDF guide and explained more about the option of using PDIP8 chips and DOA chips.

The key is using MillMax socket pins on the board. This will allow you to quickly remove the PDIP8 chips, insert your DOA chips and do some listening tests. The DOA chip sits well above the IC sockets. You'd have to remove the PDIP chip though if you want to use DOAs.

Here's the latest photo of the X-12 preamp using an API 2520 clone Discrete Op Amp.

X-12 Mic Preamps now on SALE http://www.diy-central.com/PermaLink,guid,071b35f0-fb56-4e7e-84f3-6c87cc409e6d.aspx http://www.diy-central.com/X12MicPreampsNowOnSALE.aspx Sat, 28 Mar 2009 15:25:10 GMT The X-12 preamp kits are now on sale.<br> <br> I updated the X-12 PDF guide and explained more about the option of using PDIP8 chips and DOA chips.<br> <br> The key is using MillMax socket pins on the board. This will allow you to quickly remove the PDIP8 chips, insert your DOA chips and do some listening tests. The DOA chip sits well above the IC sockets. You'd have to remove the PDIP chip though if you want to use DOAs.<br> <br> Here's the latest photo of the X-12 preamp using an API 2520 clone Discrete Op Amp.<br> <br> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://fivefishstudios.com/ffimages/X12-Preamp-Peterc.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 600px; height: 450px;" src="http://fivefishstudios.com/ffimages/X12-Preamp-Peterc.jpg" alt="" border="0"></a> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=071b35f0-fb56-4e7e-84f3-6c87cc409e6d" /> API Preamp;DIY;X-12 Mic Preamp Kit http://www.diy-central.com/Trackback.aspx?guid=7574e1ca-2e8b-468b-b5e4-ec791a5db654 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,7574e1ca-2e8b-468b-b5e4-ec791a5db654.aspx DIY-Central.com Administrator More photos showing discrete opamps installed on the board. You don't need to desolder the 8pin IC socket. Just install the MillMax sockets and the discrete opamp will install with enough cleareance above the IC socket. (You'd need to remove the PDIP8 IC chip.)

with a JFET-992


with APP2050 (Made in Italy)


with APP10 (Made in Italy)

X-12 Mic Preamp with Discrete OpAmps 2520 style http://www.diy-central.com/PermaLink,guid,7574e1ca-2e8b-468b-b5e4-ec791a5db654.aspx http://www.diy-central.com/X12MicPreampWithDiscreteOpAmps2520Style.aspx Sun, 01 Mar 2009 15:24:17 GMT <span class="postbody">More photos showing discrete opamps installed on the board. You don't need to desolder the 8pin IC socket. Just install the MillMax sockets and the discrete opamp will install with enough cleareance above the IC socket. (You'd need to remove the PDIP8 IC chip.)<br> <br> with a JFET-992<br> <img style="width: 670px; height: 515px;" src="http://farm4.static.flickr.com/3562/3320662474_42f85b7576_o.jpg" border="0"> <br> <br> with APP2050 (Made in Italy)<br> <img style="width: 670px; height: 541px;" src="http://farm4.static.flickr.com/3595/3320662372_5c0c18072c_o.jpg" border="0"> <br> <br> with APP10 (Made in Italy)<br> <img style="width: 670px; height: 506px;" src="http://farm4.static.flickr.com/3574/3320662288_43ef585588_o.jpg" border="0"></span> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=7574e1ca-2e8b-468b-b5e4-ec791a5db654" /> API Preamp;DIY;PCB;X-12 Mic Preamp Kit http://www.diy-central.com/Trackback.aspx?guid=b9278421-6555-4a02-85fc-22619d43767f http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,b9278421-6555-4a02-85fc-22619d43767f.aspx DIY-Central.com Administrator Image

This preamp was inspired by A certain Preamp Indeed!

But no, it's not a clone. Rather, I'd like to call it my FiveFish version :)

It uses input transformers with high-nickel and mumetal shielding, monolithic opamps and also has the option to use 990/992/2520 discrete opamps, null offset, output transformers, on-board voltage regulators, Relay-controlled -20dB Pads and Polarity Reverse, Soft-start phantom power, LED-lighted push button swithes, Grayhill selector switch, Bourns pot.

It uses a very very low distortion opamp chip for amplification, coupled to a high current, high-slew rate (2000V/us) video buffer driver subjecting that output transformer into submission.

The sound is huge and beefy... it will fight back when pushed hard, and slap you up and down silly to let you know who's boss... kinda like a rock n roll club bouncer.

(VU meter not shown in above photo, 5-LED VU Metering included in kit.)

X-12 Mic Preamp Kit http://www.diy-central.com/PermaLink,guid,b9278421-6555-4a02-85fc-22619d43767f.aspx http://www.diy-central.com/X12MicPreampKit.aspx Fri, 27 Feb 2009 15:22:44 GMT <img style="width: 584px; height: 473px;" src="http://farm4.static.flickr.com/3558/3315038044_8e121f1b90_o.jpg" alt="Image"> <br> <br> This preamp was inspired by <span style="font-weight: bold;"><span style="line-height: normal;">A</span></span> certain <span style="font-weight: bold;"><span style="line-height: normal;">P</span></span>reamp <span style="font-weight: bold;"><span style="line-height: normal;">I</span></span>ndeed!<br> <br> But no, it's not a clone. Rather, I'd like to call it my FiveFish version <img src="http://studio-central.com/phpbb/images/smilies/icon_smile.gif" alt=":)" title="Smile"> <br> <br> It uses input transformers with high-nickel and mumetal shielding, monolithic opamps and also has the option to use 990/992/2520 discrete opamps, null offset, output transformers, on-board voltage regulators, Relay-controlled -20dB Pads and Polarity Reverse, Soft-start phantom power, LED-lighted push button swithes, Grayhill selector switch, Bourns pot.<br> <br> It uses a very very low distortion opamp chip for amplification, coupled to a high current, high-slew rate (2000V/us) video buffer driver subjecting that output transformer into submission.<br> <br> The sound is huge and beefy... it will fight back when pushed hard, and slap you up and down silly to let you know who's boss... kinda like a rock n roll club bouncer.<br> <br> (VU meter not shown in above photo, 5-LED VU Metering included in kit.) <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=b9278421-6555-4a02-85fc-22619d43767f" /> API Preamp;DIY;PCB;X-12 Mic Preamp Kit http://www.diy-central.com/Trackback.aspx?guid=f43ee3b7-d6a2-466f-88e8-dd907003bab3 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,f43ee3b7-d6a2-466f-88e8-dd907003bab3.aspx DIY-Central.com Administrator






SC-1mk500 Lunchbox Mic Preamps Kit - API 500 Series http://www.diy-central.com/PermaLink,guid,f43ee3b7-d6a2-466f-88e8-dd907003bab3.aspx http://www.diy-central.com/SC1mk500LunchboxMicPreampsKitAPI500Series.aspx Mon, 16 Feb 2009 15:28:27 GMT <span class="postbody"><img src="http://farm4.static.flickr.com/3568/3345833200_62bf342124_o.jpg" border="0"></span> <br> <span class="postbody"> <br> <img src="http://www.fivefishstudios.com/ffimages/SC-1mk500%20Preamp.jpg" border="0"> <br> <br> </span><span class="postbody"><img src="http://farm4.static.flickr.com/3655/3319774917_03e8e1b0d5_o.jpg" border="0"> <br> <br> <br> </span> <p> </p> <img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=f43ee3b7-d6a2-466f-88e8-dd907003bab3" /> API Preamp;SC-1 Preamp Kit;Lunchbox Preamp;500 Series Preamp http://www.diy-central.com/Trackback.aspx?guid=e48cc125-fe30-4818-9ad3-e6ec4d6fe6b6 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,e48cc125-fe30-4818-9ad3-e6ec4d6fe6b6.aspx DIY-Central.com Administrator DIY API Preamp Project http://www.diy-central.com/PermaLink,guid,e48cc125-fe30-4818-9ad3-e6ec4d6fe6b6.aspx http://www.diy-central.com/DIYAPIPreampProject.aspx Wed, 22 Nov 2006 06:16:46 GMT I now have a mic preamp kit inspired by the API preamp. Check it out! You can buy the complete kit on my website. http://www.fivefish.net/diy/ http://www.fivefishstudios.com/ffimages/X12-Preamp-Fivefish-large.jpg This is my own version of a classic preamp, popular in the 70s and still popular today. It's not a clone since I'm using a totally different signal path and design, and different input and output transformers. But the sound nevertheless is awesome. Big and beefy with lots of transformer mojo goodness. Note: This kit is my 1u rack version with on-board local voltage regulators. Using Input and Output Transformers 12-step Gain from 22dB to 68dB, at 4dB/step -20dB Input Pad High-quality parts Option to use Discrete OpAmps with the 990/2520 format Using high-performance chipsets, currently the best chip around Using High-speed 2000V/us, video buffer, high-current transformer line driver Using Grayhill switch - high quality mil-spec with output trim Bourns potentiometer - so you can overdrive the input trafo and be able to trim the output of the pre. Null offset trimmer adjustment LED-lighted push buttons for 48V phantom, pads, and polarity reverse Relay Controlled Polarity Reverse Relay Controlled -20dB Pad Soft-start/Ramp-up 48V Phantom Power Includes on-board voltage regulators Professional PCB, Rohs PCB with double-sided, plated-through holes, 2oz. copper with soldermask, silkscreen layout, Includes everything... 5-LED VU Meter, spacers, screws, knobs<img width="0" height="0" src="http://www.diy-central.com/aggbug.ashx?id=e48cc125-fe30-4818-9ad3-e6ec4d6fe6b6"/> API Preamp;DIY;Project Kits;X-12 Mic Preamp Kit