Here is a Behringer composer pro xl  MDX 2600, I am selling this as is because the input now put level meters sometimes work and sometimes don’t. Despite this flaw I believe this can be easily fixed and the unit does process and processes nicely. I am selling because I have since upgraded. 
Up for sale is the highly versatileBehringer Multicom Pro-XL MDX4600, a powerhouse 1U rack-mountable audio interactive quad dynamics processor. Key Features & Technical Specifications. IKA Compression: Interactive Knee Adaptation combines the flexibility of hard and soft-knee characteristics for natural audio leveling.
Discrete OSH OpAmp from Staccato Audio is a new way of designing audio products. Every OpAmp is treated individually. In the production stage we are pairing JFET transistors, assembling manually, testing, adjusting the output current, adjusting the output offset. OSH was made as a replacement for most of IC's Opamp in the market. DIP8 socket is easy to plug&play for traditional opamp. In some cases it might be used special adapter for SOIC8-DIP8 socket which has to be soldered directly to the mainboard PCB. The heat sink will burn your fingers but thats what a single ended class A is. Please check if your analog voltage supply meets the requirement for current efficiency. If not we can recommend a best solution. - Vishay 1% thick film carbon resistors, - Tightly paired Toshiba JFETs at the input stage. - 6 pairs Toshiba JFETs at the output stage is thermally coupled - Hybrid - means for us the placement of through hole bipolar transitor. SMD?s didn?t sound so tasty in this stage as the THT - 100% production quality control - OSH - Open Sound Hybrid - Datasheet available to download from staccatoaudio website *OSH-DV is made in vertical position because OSH-DHa or OSH-DHb makes collision with caps around OpAmp
Ekkogo - Transforming Noisy, Dull Rooms Into Lively, Acoustically Pleasing Spaces. With Ekkogo's multi-purpose acoustic panels you can now reduce noise pollution and create beautiful, lively patterns around you.
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