The Bottle Garden

EDIT: We have since replaced this console with a linked pair of Studer 169s

We use the Tascam M-520 here, and we like it quite a lot. It’s very intelligently laid-out and it has great routing options. And the build quality is superb. Our only quibbles with this desk are the design of its channel mutes (they’re prone to getting noisy) and its somewhat limited EQ (I’m cool with the fixed bandwidth, but I wish the Q was broader).

Here the brochure for this mixer and its little brother (the 12 channel M-512):

M-500 series brochure

And here’s the manual (minus the schematics):

M-520 manual

Tip: The manual has a great section on the fundamentals of sound engineering that’s really useful for any novice or intermediate analogue recordist.

And finally here’s some weird, elaborate, interactive flash model of the mixer:

Interactive M-520

We recently gave our M-520 a bit of a cleaning. So if you have this mixer, or are thinking of acquiring one, here’s what the channel strips look like when disassembled:

Tascam M-520: the knobs from a one ‘bucket’ of four channels

These pin-and-header connectors are a bit fragile; the pots are all bolted to the metal–which is great for durability, but a major pain-in-the-ass to disassemble for cleaning

It’s not a bad idea to label those headers

Yep, that’s a lot of annoying ITT Schadow switches to clean…

Another view of the channel buckets disassembled.

This small mixer from the late-1960s is one of our favourite pieces of equipment. The workmanship and wiring is impeccable; the circuitry is simple; and the components are top notch. We’re particularly enamored with the sound of the PE2600’s preamps (we suspect the custom MRI–McCurdy Radio Industries–transformers contribute to the sonic heft) and its use of virtually indestructible (and noiseless) stepped attenuators.

McCurdy preamp card; we’ve since replaced the electrolytic capacitors

The late Howard M. Tremaine, a titan of professional audio equipment design and the author of the venerable Audio Cyclopedia, worked for McCurdy during the 1960s, but we’re not sure if he contributed to the design of this mixer.

We performed one small modification to this unit, removing redundant microphone inputs and replacing them with direct outputs for each channel.