Rosette Acoustic DI-Preamp

When we turned our eyes and ears toward amplifying acoustic sounds, one thing more than any other stood out as an objective; Do No Harm. In its sincerity and perfection, there is no reason to “enhance” the sound of the acoustic guitar, or any other acoustic instrument for that matter, but rather… just reproduce it.

Introducing the Rosette® DI, an Acoustic Instrument Direct Interface that puts accurate reproduction at the top of the list, and yet, also offers comprehensive shaping power for enhancement when you might need it.

We start with the same Front End and EQ circuitry used in our Rosette® 300 Two:Eight Combo, minus the Mic Input. Both products’ circuit design is derived from high end recording console design. This no-compromise approach ensures the purest signal path and lowest noise specs while at the same time insuring detailed, rich musicality and unrivaled accuracy.

REAR PANEL

The first thing you’ll likely notice on the Rosette™ DI Rear Panel are the two XLR Balanced Outputs flanking the others, which are ¼” phono jacks. These allow the choice of capturing the straight sound of your instrument or the sound of the preamp’s effect on the source.

PREAMP OUTPUTS

Both XLR Balanced and ¼” Phono PREAMP OUTPUTS are provided to capture the sound of the entire preamp for a feed to either the Stage’s Monitor Board, a Recording Console, power amp or powered Monitors for larger Stage rig applications. The XLR PREAMP Output is Balanced while the ¼” PREAMP Output is Unbalanced. Both of these Outputs are optimized for LINE Level.

DIRECT OUTPUT

An XLR Balanced DIRECT OUTPUT is provided that allows a choice of origination points for the signal, which is determined by the SOURCE switch. PRE and POST are options and they are described below under SOURCE. This Output is optimized for MIC Level Input applications making it the obvious choice for a feed to the Front Of House Console or for Recording scenarios where you might want an unaffected source for later shaping and/or processing.

Either of these OUTPUTS may be used for the most appropriate destination or they may both be used simultaneously for different destinations, the most common of these scenarios being the DIRECT Output feeding the Front Of House Console and the PREAMP Output feeding the Monitor Console for further reinforcement of your Stage sound.

SOURCE

The XLR DIRECT OUTPUT allows you to choose between PRE, which captures the signal just after the INPUT buffer stage but before the GAIN control and 4-Band EQ, and POST, which captures the signal after the preamp and EQ section. Regardless of which location the signal is derived from, the OUTPUT will be MIC Level (-30dB -10dB).

BALANCED OUTPUTS GROUND LIFT SWITCHES

Both Balanced OUTPUTS include GROUND LIFT switches that allow the lifting of PIN 1 on the XLR to help eliminate the possibility of different Ground references causing unwanted noise or hum.

FX LOOP: FX SEND and RETURN

A Series Effects Loop is provided for interfacing outboard processing and this appears as two ¼” phono jacks labeled SEND, where the signal is taken at the end of the preamp, and RETURN, where it is returned, buffered and passed on to the output stage and then to the MASTER. The Loop is likely best for time-based effects such as Chorus, Flange and Delay. Since fewer effects like overdrive, compression, envelope filters and wah are used with Acoustic Instruments, the need to put devices in front of the ROSETTE DI will likely be infrequent, but should you find yourself using these types of effects, place them there in the signal path.

DC POWER JACK

The internal Battery can be bypassed to run the ROSETTE on standard voltage wall power. Simply connect the Power Supply to the jack and the internal battery will be disconnected automatically. However, the DI Preamp can be easily powered from any 9VDC power supply and draws less than 45mA so it’s very pedalboard friendly.