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<title><![CDATA[Synthrotek: ]]></title>
<link>https://store.synthrotek.com</link>
<pubDate>Wed, 7 Oct 2026 00:00:00 EST</pubDate>
<description><![CDATA[ at Synthrotek]]></description>
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<item>
<title><![CDATA[DIRT Filter]]></title>
<link>https://store.synthrotek.com/DIRT-Filter_p_247.html</link>
<pubDate>Wed, 7 Oct 2026 00:00:00 EST</pubDate>
<description><![CDATA[ <p><a href="https://store.synthrotek.com/DIRT-Filter_p_247.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_1_thumbnail.jpg" align="right" border=0></a>DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessib...<a href="https://store.synthrotek.com/DIRT-Filter_p_247.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $69.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=247&out=1" target="_new">Add to Cart</a>]</p><br clear=all> ]]></description>
<guid isPermaLink="false">https://store.synthrotek.com/DIRT-Filter_p_247.html</guid>
<content:encoded><![CDATA[<p><a href="https://store.synthrotek.com/DIRT-Filter_p_247.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_1_thumbnail.jpg" align="right" border=0></a>DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessib...<a href="https://store.synthrotek.com/DIRT-Filter_p_247.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $69.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=247&out=1" target="_new">Add to Cart</a>]</p><br clear=all>]]></content:encoded>
<isc:description><![CDATA[<div>DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.</div><div><br></div><div>Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessible from the front panel. </div><div><br></div><div>It's not a traditional filter; it's an effects module with filtering, ring mod effects, wave shaping and even outright brutal harmonic distortion.</div><div><br></div><div>DIRT likes to square things up a bit, so throw in a triangle, sawtooth, sine or other wave forms for different style effects. Even plugging a guitar (using an external amplification module) into the DIRT produces some great sounds and heavy distortion.</div><div><br></div><div>Controls:</div><div><br></div><div>- CUTOFF = Cutoff Frequency</div><div><br></div><div>- RESONANCE = Increase the Q!</div><div><br></div><div>- BIAS = Set the bias correctly or not, the choice is yours</div><div><br></div><div><br></div><div>Inputs/Outputs:</div><div><br></div><div>- Now shipping version 2.2, which as a buffered CV input jack. CUTOFF CV IN = Voltage range changes depending on where CUTOFF knob is positioned. External attenuation will be needed for fine modulation.</div><div><br></div><div>- AUDIO IN = Audio Input</div><div><br></div><div>- AUDIO OUT = Audio Output</div><div><br></div><div><br></div><div><div>Other info: </div><div><br></div><div>- PCB Dimensions: 4 x 1.5 inches</div><div><br></div><div>- 4HP</div><div><br></div><div>- Power consumption: &gt;1mA</div></div><div><br></div><center><iframe width="560" height="315" src="https://www.youtube.com/embed/ETw2X4aABK0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/_2zp2Em5Y9o" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/xm3Fc-c6eaY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/R7jBhuhpqTo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="">&amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;/center></iframe><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/1lILmXj3cAc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/wI5CIC6zYR4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><div style="background-color: #f7f7f7; border-style: solid; border-color: #7B7B7B; width: 200px; padding: 5px; text-align: center;"><h3>Important Links</h3><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/">Product Page</a><br><a href="https://store.synthrotek.com/search.asp?keyword=dirt+filter&amp;search=GO">Store Page</a><br><br><strong>Eurorack Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><strong>9V Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/9v-dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/dirt-filter-bom/">Bill of Materials</a><br><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/dirt-filter-schematic/">Schematic</a><br><a href="https://www.synthrotek.com/capacitor-and-resistor-codes/">Capacitor and Resistor Lookup Guide</a></div></center>    ]]></isc:description>
<isc:productid><![CDATA[DIRT Filter]]></isc:productid>
<isc:thumb><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_1_thumbnail.jpg]]></isc:thumb>
<isc:image><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_1.jpg]]></isc:image>
<isc:price><![CDATA[$69.99]]></isc:price>
</item>
<item>
<title><![CDATA[DIRT Filter DIY Kit - Eurorack Version]]></title>
<link>https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html</link>
<pubDate>Wed, 7 Oct 2026 00:00:00 EST</pubDate>
<description><![CDATA[ <p><a href="https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_diy_eurorack_kit_thumbnail.jpg" align="right" border=0></a>The kit version of the Eurorack DIRT Filter.DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting an...<a href="https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $49.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=248&out=1" target="_new">Add to Cart</a>]</p><br clear=all> ]]></description>
<guid isPermaLink="false">https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html</guid>
<content:encoded><![CDATA[<p><a href="https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_diy_eurorack_kit_thumbnail.jpg" align="right" border=0></a>The kit version of the Eurorack DIRT Filter.DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting an...<a href="https://store.synthrotek.com/DIRT-Filter-DIY-Kit--Eurorack-Version_p_248.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $49.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=248&out=1" target="_new">Add to Cart</a>]</p><br clear=all>]]></content:encoded>
<isc:description><![CDATA[<div>The kit version of the Eurorack DIRT Filter.</div><div><br></div><div>DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.</div><div><br></div><div>Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessible from the front panel. </div><div><br></div><div>It's not a traditional filter; it's an effects module with filtering, ring mod effects, wave shaping and even outright brutal harmonic distortion.</div><div><br></div><div>DIRT likes to square things up a bit, so throw in a triangle, sawtooth, sine or other wave forms for different style effects. Even plugging a guitar (using an external amplification module) into the DIRT produces some great sounds and heavy distortion.</div><div><br></div><div>Controls:</div><div><br></div><div>- CUTOFF = Cutoff Frequency</div><div><br></div><div>- RESONANCE = Increase the Q!</div><div><br></div><div>- BIAS = Set the bias correctly or not, the choice is yours</div><div><br></div><div><br></div><div>Inputs/Outputs:</div><div><br></div><div>- Now shipping version 2.2, which as a buffered CV input jack. CUTOFF CV IN = Voltage range changes depending on where CUTOFF knob is positioned. External attenuation will be needed for fine modulation.</div><div><br></div><div>- AUDIO IN = Audio Input</div><div><br></div><div>- AUDIO OUT = Audio Output</div><div><br></div><div><br></div><div>Other info: </div><div><br></div><div><div>- PCB Dimensions: 4 x 1.5 inches</div></div><div><br class="Apple-interchange-newline"></div><div>- 4HP</div><div><br></div><div>- Power consumption: &gt;1mA</div><div><br></div><center><iframe width="560" height="315" src="https://www.youtube.com/embed/ETw2X4aABK0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/_2zp2Em5Y9o" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/xm3Fc-c6eaY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/R7jBhuhpqTo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="">&amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;/center></iframe><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/1lILmXj3cAc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/wI5CIC6zYR4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><div style="background-color: #f7f7f7; border-style: solid; border-color: #7B7B7B; width: 200px; padding: 5px; text-align: center;"><h3>Important Links</h3><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/">Product Page</a><br><a href="https://store.synthrotek.com/search.asp?keyword=dirt+filter&amp;search=GO">Store Page</a><br><br><strong>Eurorack Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><strong>9V Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/9v-dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/dirt-filter-bom/">Bill of Materials</a><br><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/dirt-filter-schematic/">Schematic</a><br><a href="https://www.synthrotek.com/capacitor-and-resistor-codes/">Capacitor and Resistor Lookup Guide</a></div></center>   ]]></isc:description>
<isc:productid><![CDATA[DIRT Filter DIY Kit - Eurorack Version]]></isc:productid>
<isc:thumb><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_diy_eurorack_kit_thumbnail.jpg]]></isc:thumb>
<isc:image><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_diy_eurorack_kit.jpg]]></isc:image>
<isc:price><![CDATA[$49.99]]></isc:price>
</item>
<item>
<title><![CDATA[DIRT Filter PCB & Panel]]></title>
<link>https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html</link>
<pubDate>Wed, 7 Oct 2026 00:00:00 EST</pubDate>
<description><![CDATA[ <p><a href="https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_pcb_and_panel_22_thumbnail.jpg" align="right" border=0></a>Attention: This listing includes only the PCB and Panel; no other parts or components are included. A Bill of Materials link is below in the links box with a list of all the parts you will need.DIRT is our new 4HP low-pass filter / effect for the Eur...<a href="https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $21.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=249&out=1" target="_new">Add to Cart</a>]</p><br clear=all> ]]></description>
<guid isPermaLink="false">https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html</guid>
<content:encoded><![CDATA[<p><a href="https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html?referrer=rss"><img src="https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_pcb_and_panel_22_thumbnail.jpg" align="right" border=0></a>Attention: This listing includes only the PCB and Panel; no other parts or components are included. A Bill of Materials link is below in the links box with a list of all the parts you will need.DIRT is our new 4HP low-pass filter / effect for the Eur...<a href="https://store.synthrotek.com/DIRT-Filter-PCB-Panel_p_249.html?referrer=rss">[Read More]</a><br><b>Our Price:</b> $21.99 <font color="red"></font> [<a href="https://store.synthrotek.com/add_cart.asp?quick=1&item_id=249&out=1" target="_new">Add to Cart</a>]</p><br clear=all>]]></content:encoded>
<isc:description><![CDATA[<div><span style="font-style: italic; color: rgb(255, 0, 0);">Attention: This listing includes only the PCB and Panel; no other parts or components are included. A Bill of Materials link is below in the links box with a list of all the parts you will need.</span></div><div><br></div><div>DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.</div><div><br></div><div>Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessible from the front panel. </div><div><br></div><div>It's not a traditional filter; it's an effects module with filtering, ring mod effects, wave shaping and even outright brutal harmonic distortion.</div><div><br></div><div>DIRT likes to square things up a bit, so throw in a triangle, sawtooth, sine or other wave forms for different style effects. Even plugging a guitar (using an external amplification module) into the DIRT produces some great sounds and heavy distortion.</div><div><br></div><div>Controls:</div><div><br></div><div>- CUTOFF = Cutoff Frequency</div><div><br></div><div>- RESONANCE = Increase the Q!</div><div><br></div><div>- BIAS = Set the bias correctly or not, the choice is yours</div><div><br></div><div><br></div><div>Inputs/Outputs:</div><div><br></div><div>- Now shipping version 2.2, which as a buffered CV input jack. CUTOFF CV IN = Voltage range changes depending on where CUTOFF knob is positioned. External attenuation will be needed for fine modulation.</div><div><br></div><div>- AUDIO IN = Audio Input</div><div><br></div><div>- AUDIO OUT = Audio Output</div><div><br></div><div><br></div><div><div>Other info: </div><div><br></div><div><div>- PCB Dimensions: 4 x 1.5 inches</div></div><div><br></div><div>- 4HP</div><div><br></div><div>- Power consumption: &gt;1mA</div></div><div><br></div><center><iframe width="560" height="315" src="https://www.youtube.com/embed/ETw2X4aABK0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/_2zp2Em5Y9o" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/xm3Fc-c6eaY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/R7jBhuhpqTo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="">&amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;/center></iframe><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/1lILmXj3cAc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><center><iframe width="560" height="315" src="https://www.youtube.com/embed/wI5CIC6zYR4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></center><br><br><div style="background-color: #f7f7f7; border-style: solid; border-color: #7B7B7B; width: 200px; padding: 5px; text-align: center;"><h3>Important Links</h3><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/">Product Page</a><br><a href="https://store.synthrotek.com/search.asp?keyword=dirt+filter&amp;search=GO">Store Page</a><br><br><strong>Eurorack Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><strong>9V Version:</strong><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/9v-dirt-filter-assembly-instructions/">Assembly Instructions</a><br><br><a href="https://www.synthrotek.com/kit-assembly-instructions/modular-circuit-assembly-instructions/dirt-filter-assembly-instructions/dirt-filter-bom/">Bill of Materials</a><br><a href="https://www.synthrotek.com/products/modular-circuits/dirt-filter/dirt-filter-schematic/">Schematic</a><br><a href="https://www.synthrotek.com/capacitor-and-resistor-codes/">Capacitor and Resistor Lookup Guide</a></div></center>    ]]></isc:description>
<isc:productid><![CDATA[DIRT Filter PCB & Panel]]></isc:productid>
<isc:thumb><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_pcb_and_panel_22_thumbnail.jpg]]></isc:thumb>
<isc:image><![CDATA[https://store.synthrotek.com/assets/images/synthrotek_dirt_filter_pcb_and_panel_22.jpg]]></isc:image>
<isc:price><![CDATA[$21.99]]></isc:price>
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