A while ago the custom Clarostat input attenuator used by Purple Audio for their superior sounding recreation of the vintage 1176 LN leveling amplifier became unavailable. The original part was a J series T-pad attenuator with two 600Ω "build out" resistors to keep a constant 600Ω load on the source and primary of the input transformer. Clarostat changed carbon manufacturers and the new carbon manufacturer was unwilling or unable to make the part. It took Purple Audio some time and lots of energy to find the right replacement part. Once they tested out the replacement part of choice and found that it met their extremely demanding requirements then, and only then did the MC-77 go back into production.
From: "Rob Skane"
To: "Fletcher"
Sent: Monday, February 14, 2005
Subject: Re:Purple Audio MC77 Question > Hey,
> Thanks for helping me out with the MC-77. I really dig it a lot - I've
> only used it on electric guitars so far and it's fucking killer.
>
> If you get a chance could you please pass along any settings that you dig
> for acoustic guitar, bass and vocals...just stuff to get me in the ballpark.
>
> Thanks again for your help with the MC-77.
>
> All the best
> Rob Skane
FEATURES
- True Bypass with front panel switch
- New Stereo Link with front panel switch
- Sidechain insert loop - key input, with front panel switch
- Buffered VU meter switchable to monitor input or ouput level at +4dBu
- LED Meter lights
- Heavy Gauge Black Painted Steel Enclosure
- Audio Path Discrete Transistor Electronics
- Transformer Balanced XLR Inputs and Outputs
- Zener Shunt Regulated Power Supply
- Single Element Class A Output Amplifier
- Compression Ratios 4:1, 8:1, 12:1 and 20:1
- Fast Attack Time 20 microseconds to 800 microseconds
- Release Time 50 milliseconds to 1.1 second
- Gain 45dB (full gain with no limiting)
- Purple Anodized Aluminum Front Panel
- 120/240 volt operation Internally Selected
- 3 Year Warranty (which Mercenary doubles to 6 years!)
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