Genz-Benz 904 ユーザーガイド
-1-
Blue Tube
™
Rack
We thank you for your purchase of the most versatile and best designed tube preamp rack on
the market. We are confident this product will meet your desires to acquire the Real "TUBE"
sound.
the market. We are confident this product will meet your desires to acquire the Real "TUBE"
sound.
TAKE TIME TO KNOW THE "RACK"
The rack is a very versatile unit. Please take the necessary time to look over this manual and
become familiar with the basic layout of controls as well as the unique features. Take time and
let your ears guide you through the tonal possibilities. The EQ sections have been carefully op-
timized for current and classic playing styles and have an extremely wide range of control. It is
possible that you may be just a "tweak" away from your desired sound, so be patient and jot
down the settings that you prefer most. Also become fully aware of the ranges of uses this
product was designed for—everything from use as an effects rack to that of a stand-alone pre-
amp.
APPLICATIONS OVERVIEW
The BLUE TUBE RACK is more versatile than one might expect at first glance. While the basic design is
an effects rack, it has several other functions as well. For example, it can be used as a stand-alone pre-
amp for basic power amps of any power. The authentic “TUBE” sound is thus produced at a SPL (Sound
Pressure Level) potentially exceeding any combo or stage amp made today! Another use finding great
appeal is the use of the unit “direct to the board” in recording work. The inclusion of line level input and
output jacks enables it to be used at high board levels for patches and loops.
As originally conceived, the BLUE TUBE products are essentially bass and keyboard oriented. While
they remain so, we are also finding more and more jazz, fusion, country, and even rock guitar artists us-
ing the BLUE TUBE in various ways, in and out of the studio, to warm up and add aural enhancement
that only tubes can produce. While clean tube sound is a main feature, there is still plenty of “drive” left
in the BLUE TUBE to get distortion and tube crunch (similar to standard Marshall sensitivity).
an effects rack, it has several other functions as well. For example, it can be used as a stand-alone pre-
amp for basic power amps of any power. The authentic “TUBE” sound is thus produced at a SPL (Sound
Pressure Level) potentially exceeding any combo or stage amp made today! Another use finding great
appeal is the use of the unit “direct to the board” in recording work. The inclusion of line level input and
output jacks enables it to be used at high board levels for patches and loops.
As originally conceived, the BLUE TUBE products are essentially bass and keyboard oriented. While
they remain so, we are also finding more and more jazz, fusion, country, and even rock guitar artists us-
ing the BLUE TUBE in various ways, in and out of the studio, to warm up and add aural enhancement
that only tubes can produce. While clean tube sound is a main feature, there is still plenty of “drive” left
in the BLUE TUBE to get distortion and tube crunch (similar to standard Marshall sensitivity).
OWNER’S MANUAL