1.0RouteNote Create Bloghttps://create.routenote.com/blogConnor Edneyhttps://create.routenote.com/blog/author/connor/rich600338<blockquote class="wp-embedded-content" data-secret="RQCTwGbNox"><a href="https://create.routenote.com/blog/hd-400-pro-studio-headphones/">HD 400 PRO Studio Headphones by Sennheiser Pack Ultimate Sound and Ultimate Comfort</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://create.routenote.com/blog/hd-400-pro-studio-headphones/embed/#?secret=RQCTwGbNox" width="600" height="338" title="“HD 400 PRO Studio Headphones by Sennheiser Pack Ultimate Sound and Ultimate Comfort” — RouteNote Create Blog" data-secret="RQCTwGbNox" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> https://create.routenote.com/blog/wp-content/uploads/2021/12/HD-400-PRO-Studio-Headphones-by-Sennheiser-Pack-Ultimate-Sound-and-Ultimate-Comfort-Mixxed-Blog-1-1-scaled.jpg25601280The HD 400 PRO headphone by Sennheiser have an open-back build with an extensive frequency reponse. Designed to bring you a accurate and actual and natural reproduciton of your input signal, the Sennheiser HD 400 Pro’s are a mighty fine pair of music production headphones. Being the first open-back studio headphones in Sennheiser’s PRO Line, the HD 400 PRO reference headphones present a wide 6 Hz to 38kHz frequency response and bring an unaltered sound for precise mixdowns, reports gearnews.com The official HD 400 PRO page on the Sennheiser state that the transducers inside the headphones are made from a special polymer blend...