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Thermionic Culture The Rooster Preamp (Transformer Balanced) Refurbished (B-Stock)  From Thermionic

Dual Mono Micr Preamp and DI

Thermionic Culture

Manufacturer's Description from Thermionic


The Rooster is a valve based design mic/line & DI pre-amp with EQ and a distortion section based around the same 5725 valve used in the ever-popular Culture Vulture.

INPUT STAGE

The input stage uses a custom 1200-ohm input Sowter transformer and an ECC81/12AT7 valve.

EQ SECTION

The neatly laid out EQ section has all the Boost or Lift controls on the left, with a broad bass lift control, peaking at 60Hz, and a selectable mid/high lift at 2.5k, 4k ("bell" shaped) and 7k (shelving) respectively. All the Cut controls are on the left hand side, the mid cut is 700Hz, the 6 position bass cut is straight off the Earlybird 2 pre-amp. There is also a switchable LPF ( low pass filter ).

'ATTITUDE' DISTORTION SECTION

The same 5725-distortion tube which is employed in the Culture Vulture is used in the new Rooster. It offers a subtle distortion characteristic in the triode position, more so than a Culture Vulture due to the higher HT voltage, and so has a very low (about 0.01%) distortion when the 'Attitude' control is set to 1. In the pentode mode it generates more 3rd harmonic distortion. Distortion can be pretty radical when the Attitude control is to 'Max' and the input is high.

OUTPUT SECTION

The output valve is ECF80 which combines high output with low impedance (less than 100 ohms). There is +48v phantom power, and phase reverse. The output is unbalanced as standard but a balancing transformer option that is used in the Culture Vulture Mastering will be available.

Thermionic Culture

About Manufacturer

Thermionic Culture is focused on producing the very best all valve design audio products. In this day and age of mass-produced solid-state audio equipment it's a refreshing change for a company to constantly strive for the ultimate all valve signal path.

The owners/key people involved at Thermionic Culture are totally dedicated to valve audio equipment, all having many years experience in recording and working with valves. Company founder and designer Vic Keary built his first studio in the late 50's and went onto building Maximum Sound Studios which was later bought by Manfred Mann and renamed The Workhouse, Chalk Farm Studios, and the all valve based studio Chiswick Reach.

Jon Bailes, Thermionic Culture's co-founder is responsible for the mechanical design & visual appearance. Jon has a wealth of experience as a Chief Designer in the electronic manufacturing industry .

Nick Terry engineers on many current albums and singles working recently with artists such as McAlmont & Butler, The Libertines. All this 'real world' experience is an invaluable aid to creating all valve equipment that other artists will no doubt appreciate.

Audio amplification, compression, mixing and equalisation took a backward step when solid-state technology was introduced. Valves are much more real and natural when amplifying and processing audio. We use no transistors or ICs in the signal path. Solid state is relegated to where it works best - in power supplies, although we do use a valve voltage regulator in The Culture Vulture's HT supply.

Some of our circuits take ideas from the 1940s to '60s and refine and update them to produce the low noise and distortion which are expected now. Other circuits are really original! To achieve high standards we use modern components such as 1% metal oxide resistors and polypropylene capacitors where their use is a positive advantage, but we avoid Hi-Fi type gimmicks such as gold plated XLR connectors. We take pride in the construction and reliability of our equipment. To date it is all hand wired using the best quality components. We give a 2-year guarantee against manufacturing defects, though we can only guarantee valves for 1 year. Many valves we use, are Military/Industrial grade. Also, we select and match (where necessary) all of the valves that we supply so a far longer life span can be expected

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