Thanks Kurt,
That looks pretty cool

I got a couple of questions that you guys might be able to help me with.
It has TRS stereo 1/4" inputs. If I use one of those adapters from jaycar to take my two mono cables to one stereo trs, would that degrade the signal at all?
Secondly, I'm using relatively high quality gear throughout my chain so I'm slightly concerned about anything that will degrade the signal along the way to the amp... Judging on the following description & specs, can anyone see how this passive mixer would impair the quality of the signal?
Ps. Yeah, I've pretty much been spending the past year or so devising, designing, buying & building this rig. It's gonna be pretty epic (as far as I know, no-one else has anything like it) & will also double as my personalised foldback system with line outs when playing larger venues. My main goals when designing it were relative portability, relative quality of sound, all the pedals I want & quick setup/teardown time. I'll share the YouTube video with you guys once it's done if you're interested.
The specs & description of the mixer are as follows
ART - SPLITMIX4
FOUR CHANNEL STEREO/MONO MIXER
BRAND NEW, BOXED, UN-USED, READY 2 GO!
PRODUCT INFORMATION:
What's for Sale Today? - ART SPLITMIX4
Any questions regarding the item please ask.
Please Note OverSeas Customers: I am more than happy to ship anywhere in the world, anytime. The item will be sent, marked as a gift and you may also nominate the value of the product to avoid any further taxes in your country.
All payments accepted - PAYPAL, DIRECT DEPOSIT, CASH ON PICK UP, MONEY ORDER/CHEQUE.
ART SPLITMIX4 - The SPLITMix4 is a fully passive hybrid mixer that offers a wide variety of configurations. Mix 4 stereo input channels down to 1 stereo output, split a stereo input signal to distribute 4 stereo output channels, or combine the configurations for a wide range of applications. You can even configure the SPLITMix4 as 4 stereo input channels thru 4 independent level attenuators to 4 stereo output channels.
Independent stereo level controls are provided on each channel. All 1/4-inch connections are stereo TRS (Tip, Ring, Sleeve) and all channel connections have intelligent switching to allow for a wide variety of configurations. Plugging into a mix input channel removes it from the splitter bus, and plugging into a splitter output channel removes it from the mix bus. Stereo or mono operation is determined by the type of 1/4-inch plug and cabling that you use.
The fully passive design of the SPLITMix4 has no active circuitry to add noise or distortion, and virtually any signal level can be handled. The Level attenuators cover a wide range and offer over 90dB of attenuation and channel isolation. The SPLITMix4 is designed primarily as a line level device with medium input and output impedances.
Features
Four Stereo Input Channels
Stereo Output
Independent stereo level controls are provided on each channel
Passive Design (No Power Supply Required)
Over 90dB of Attenuation
Specifications:
Frequency Response: 20Hz –20kHz, +/-1dB
THD: <0.005% @ 1kHz (typical)
Phase Response: <10 degrees @ 20kHz
Input/Output Connections: 1/4-inch TRS stereo
Input Impedance: 25k -100k Ohms
Output Impedance: 1k - 4k Ohms
Insertion Loss: 12dB (typical)
Maximum Attenuation: >90dB (typical)
Channel Isolation: >90dB (typical)
Power Requirements: None (fully passive)
Dimensions (HxWxD in) : 1.85 x 4.6 x 4.1
Dimensions (HxWxD mm) : 47 x 117 x 104
Weight: 0.84 lbs / 0.38 kg