Groove TubesLLC...the American Tube Company, since 1979. 1543 Truman Street, San Fernando, CA91340, 818-361-4500 fax 818-365-9884 Press Release - GT s DITTO box goes Platinum! Greg Ladanyi, renown Grammy winning Producer/Engineer, has received the first Groove Tubes DITTO boxes for their use in the Platinum Live Club, LA's hot new 5.1 live venue with a full 5.1 recording facility. Greg Ladanyi s credits include 6 Jackson Browne albums (including Running on Empty), 4 Toto albums (including Toto IV), several albums with Fleetwood Mac, Don Henley (Including Building the Perfect Beast) and many others. GT s Aspen Pittman Greg Ladanyi Greg comments: "These new DITTO boxes sound absolutely incredible. They are also are built like a brick! The DITTO sounds great at Unity Gain, and can also crank out +30dB of all tube gain. So, it has become our favorite tube preamp for direct recording guitars or keyboards to the Steinberg Nuendo digital audio workstation we use here at the club s studio. They really fatten up all our instrument recordings. We just love this GT DITTO box!" The DITTO box (stands for Direct Input, Tube Transformer Output) features two selected Groove Tubes dual triodes, a custom built balanced output transformer and can drive a signal 500+ feet without loss of tone. DITTO can also add up to +30dB of all tube gain (no Opamps or Transistors please!) for direct recording of all instruments, and is especially suited for digital recordings.
Groove TubesTM DITTOTM Direct Interface, Tube- Transformer Output WHAT INSTRUMENTS DREAM ABOUT. ALL TUBE PREAMP INTERFACE Instruments are heavily influenced by the first stage of electronics they encounter, usually a transistor. But strings and keys prefer tubes, always have. The DITTO's first tube gain stage (GT12A X7) adds power*, warmth and new dimension to guitar, bass, keyboards and synths. *adjustable from Unity gain to +30dB ALL TUBE OUTPUT STAGE The DITTO's second tube gain stage (GT12AU7) drives it's custom wound output transformer, balancing and converting your instrument into a powerhouse low impedance signal that will drive 100's of feet of cable, greatly minimizing interference and/or signal loss, and adding loads of tube tone! STAGE OR STUDIO Built tough enough for a world tour, DITTO transforms your high impedance instrument signal into "line-level" ready, thereby bypassing the transistor gain stage of the mixer. DITTO provides enough gain for direct recording into Hard Disk recording formats. Your instruments will sound better than ever, on stage or in studio! COMING SOON The DITTO-M tube mic preamp version for stage and studio mics! Stop Dreaming! The DITTO tube preamp and DI is in stores now and it's affordable! GROOVE TUBES LLC CUSTOM SHOP PRODUCTS TM 2003 Groove Tubes LLC. All rights reserved. Groove Tubes, the GT in a circle logomark, Groove Tubes Custom Shop Products and Ditto are trademarks of Groove Tubes LLC.
Groove TubesTM DITTOTM Direct Interface, Tube- Transformer Output WHAT INSTRUMENTS DREAM ABOUT. ALL TUBE PREAMP INTERFACE Instruments are heavily influenced by the first stage of electronics they encounter, usually a transistor. But strings and keys prefer tubes, always have. The DITTO's first tube gain stage (GT12A X7) adds power*, warmth and new dimension to guitar, bass, keyboards and synths. *adjustable from Unity gain to +30dB ALL TUBE OUTPUT STAGE The DITTO's second tube gain stage (GT12AU7) drives it's custom wound output transformer, balancing and converting your instrument into a powerhouse low impedance signal that will drive 100's of feet of cable, greatly minimizing interference and/or signal loss, and adding loads of tube tone! STAGE OR STUDIO Built tough enough for a world tour, DITTO transforms your high impedance instrument signal into "line-level" ready, thereby bypassing the transistor gain stage of the mixer. DITTO provides enough gain for direct recording into Hard Disk recording formats, and your instruments will sound better than ever, on stage or in studio! COMING SOON The DITTO-M tube mic preamp version for stage and studio mics! Stop Dreaming! The DITTO tube preamp and DI is in stores now and it's affordable! GROOVE TUBES LLC CUSTOM SHOP PRODUCTS TM 2003 Groove Tubes LLC. All rights reserved. Groove Tubes, the GT in a circle logomark, Groove Tubes Custom Shop Products and Ditto are trademarks of Groove Tubes LLC.
Groove Tubes Studio Series tube DITTO box Operators Guide The DITTO TM box A Direct Input, Tube Transformer Output for Stage and Studio Tube D.I. and/or Tube Preamp with +30dB Available Gain Congratulations! You ve just purchased what we believe to be the highest quality tube DI box and/or +30dB tube preamp available anywhere. You can use your DITTO box as a unity gain DI box for driving long signal runs, totally isolated, without any loss of audio performance or dynamic range, keeping the signal quiet and hum free. The DITTO box also adds clarity, punch and tube warmth to any or all high impedance instruments such as electric guitar, electro-acoustic guitar, electric bass guitar, electric keyboard and synthesizer. DITTO was designed for all studio or live recording applications and also for all live venue sound reinforcement requirements. As a DI box DITTO is unsurpassed in it s audio quality and will provide accurate unity gain with the added clarity, dimension and true dynamic response of tubes when compared to the common solid state DI boxes. But DITTO is much more than just a DI box. Ditto is, to our knowledge, the only two tube (it has two dual triodes) DI box with a custom wound output transformer that can deliver up to +30 db of make up gain! DITTO will produce all the tube preamp gain you will ever need for directly recording into your PC based recording system. Your DITTO box is also a powerful all tube preamp that can provide up to +30dB of warm tube gain for all high impedance instrument applications. The strong 2 tube gain stage coupled with our custom wound isolation output transformer will provide all the gain you need to directly interface your instruments to any of the audio interface computer recording systems such as Pro Tools, M Audio s Delta 1010, the Aardvark or RME system cards. DITTO will also serve as a preamp and line driver for your instrument connections to any +4 line level inputs of your live sound re enforcement system, regardless of cable lengths.. You can even use the Ditto with your portable recording platform that has USB or firewire for recording guitar, bass or synth tracks. Your DITTO box will add clarity, punch and warmth to your keyboard, synth, electric guitar, electro-acoustic guitar or electric bass. For live recording, use DITTO to add all the make up gain before your mixer s preamp, replacing the mixer s gain (that is gain from inexpensive Op amp or transistor circuits) with lush, real dynamically true tube gain. Tube preamps are popular for recording and live applications because the dynamic response is more realistic and the added punch and clarity are desirable for musical applications. Groove Tubes has been an industry leader in both Tech Specs Input level One mega Ohm High Impedance, IE: Electric guitar Electro-Acoustic guitar Electric Bass Electronic Keyboard Electronic Synthesizer Output Level 18.5 dbm terminated at 600 Ohms Dynamic Range 118 db Available Gain + 30 db Bandwidth 6 Hz to 200 KHz @ Unity Noise A Weighted EIN -90 db Total Harmonic Distortion.013% @ +4 dbm AC Primary input voltage is Internally Selectable between 100, 120, and 230 volts, 50-60 cycles FUSE 1 Amp @ 100-120 volts 1/2 Amp @ 230 volts
The DITTO box Operators Guide Tech Specs Input level One mega Ohm High Impedance, IE: Electric guitar Electro-Acoustic guitar Electric Bass Electronic Keyboard Electronic Synthesizer Output Level 18.5 dbm terminated at 600 Ohms Dynamic Range 118 db Available Gain + 30 db Bandwidth 6 Hz to 200 KHz @ Unity Noise A Weighted EIN -90 db Total Harmonic Distortion.013% @ +4 dbm AC Primary input voltage is Internally Selectable between 100, 120, and 230 volts, 50-60 cycles FUSE 1 Amp @ 100-120 volts 1/2 Amp @ 230 volts tubes and studio tube preamps for recording. GT has been making the highest quality tubes and tube electronics for recording for more than 23 years! Therefore you can trust Groove tubes to deliver a very special tube preamp that can enhance all your recordings. FEATURES: There are two 1/4 parallel inputs, one for your instrument input, and the second passes on unaffected your instrument s output signal for loop output applications. Use this dual input feature to keep your stage set up as is while balancing and isolating your unbalanced high impedance signal for extremely long cables runs necessary for transmission to your recording and/or live venue mixer. Cable runs of 500 feet or more are possible with Ditto s powerful tube driver and output isolation transformer without any loss of signal strength or character. You can also use some or all makeup gain and there by reduce the need for gain at the mixer. Trading tube gain for solid state gain is DIRECT INPUT 12AX7 almost always desirable and will result in a better sounding performance. XLR balance low impedance output jack for long line transmission of the instrument signal. Pin 2 is hot as consistent with AES standard. You may "unbalance" this signal but hum and noise induction may result depending on the environment conditions. LOOP OUTPUT useful to float your signal in certain environments. This switch does not unbalance your XLR transmission line or add induction of hum or noise. Gain control allows you to set DITTO for 0 db, or unity gain, which means the signal strength coming into DITTO will be exactly the same as it leaves DITTO although it will now be a balanced, or fully differential, signal path. Rotating the Gain knob clockwise will add up to +30dB of all tube preamp gain and would be useful for all live and recording applications where warmth and dynamic realism is desired. DITTO s gain will have more clarity and punch than UNITY GAIN ADJ +30dB SIGNAL GROUND LIFT 12AU7 BALANCED TRANSFORMER OUTPUT BLOCK DIAGRAM OF DITTO BOX that which could be provided by your mixer s preamp or other solid state gain devices. It can provide enough for direct recording when connected to any -10dB or +4dB PC audio interface device. There is also a On/Off switch and external fuse holder provided on the opposite side from the audio input/output face panel. Signal Ground lift will isolate your signal ground from your Earth ground and can be 2002 Groove Tubes LLC. All rights reserved. Groove Tubes, DITTO box by Groove Tubes LLC. All other marks are the property of their respective owners. All specifications subject to change without notice. GROOVE TUBES LLC Studio Products 1543 Truman Street San Fernando, California 91340 USA Tel 818 361 4500 Fax 818 365 9884