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User manual Genz-Benz, model SHENANDOAH 80 LT

Manafacture: Genz-Benz
File size: 989.68 kb
File name: SHEN80LT.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


Each channel is equipped with a .” unbalanced line input and channel 1 is also equipped with an XLR balanced microphone input (with phantom power). The 2 inputs on channel 1 are summed (mixed) together at a 1:1 ratio. Each channel offers a 3 band equalizer with a sweepable midrange frequency control. Equalization centers were carefully selected for use with acoustic instruments. Each channel also contains individual send controls to the stereo digital effects circuit. The channel signals are then summed together, mixed with the digital effects return and passed on to the internal dual 40 watt power amplifier (80 watts total). The back panel contains stereo XLR balanced outputs with ground lift switch, stereo unbalanced line outputs, two 1/4” speaker jacks, a headphone output, and an effects cancel jack. ·Lightweight 29 Lb. Design ·24-bit Stereo Studio Quality Digital Effects ·Two Channels w/ 3 Band EQ w/ Sweepable Mids ·Compact Monitor Shape Cabinet Design ·Phantom Power for Condenser Mics ·Stereo 80 Watt Power ·XLR & .” Inputs ·Dual 6.5” Woofers & Bullet Tweeters ·XLR Direct Outputs (left & right) ·Speaker Stand Adaptor FRONT PANEL INPUTS - The Shenandoah® Stereo 80LT is equipped with two types of input jacks. The .” input is unbalanced and “line/instrument level” with a useable sensitivity from 50 mV to 1.6 volt. The input impedance is 220 k ohms. The .” input will also accept most active balanced line sources, automatically unbalancing them by recognizing the tip portion of the balanced signal. If an instrument offers an unbalanced output it should be connected to the unbalanced input of the Shenandoah® amp. Additionally, the precision input scaling preamp contains a 45 Hz, 12 dB/octave high pass filter (more effective and less intrusive than the more common 6 dB filters) and an “RFI” filter (radio frequency interference) to eliminate unwanted noise. The XLR input jack is balanced and “microphone level”, with a useable sensitivity from –60 dBv to -30 dBv. It is not a line level input. It contains a precision full range differential microphone preamp with phantom power. For use with higher-level sources (such as the balanced line level output from a keyboard or other instruments), a balanced pad network will be necessary to use the balanced input. For instance, a Rapco “Pad Blox”,-20 or -30 pad or similar product could be used. COMBINING XLR & .” INPUTS - A unique feature of the Shenandoah® Stereo 80LT is the ability to mix the XLR balanced and .” unbalanced inputs on channel 1. In many situations, this effectively makes the amplifier function as a 3 channel amplifier. The most effective way to use this feature is to set the volume on the channel using the XLR microphone input and then adjust the level control on the instrument itself (assuming that it has one) to blend levels between the 2 inputs. ON-BOARD STUDIO QUALITY STEREO DIGITAL EFFECTS - The Shenandoah® Stereo 80LT contains a 24-bit, 16 program stereo digital effects processor. We chose to use an industry leader in digital effects processing for realistic, high quality effects algorithms. Level differences are normal when switching between different effects; just adjust the channel send and master level controls accordingly. The effects level control on each channel adjusts the send level to the digital effects processor. The digital effects level in the master section controls the effects return level from the processor. Turning up the channel effects send will yield lusher effects response. Running the channel effects send lower and the master level higher will yield softer effects response. PROGRAM DESCRIPTION Name Description Hall 1 Bright hall reverb Hall 2 Warm hall reverb Room 1 Hardwood studio reverb Room 2 Ambient room reverb Room 3 Warm room reverb for guitars and rhythm instruments. Plate 1 Classic plate reverb for lead vocals and instruments. Plate 2 Sizzling bright plate reverb for vocals. Plate 3 Short “vintage” plate reverb Chorus Stereo chorus (Tonal variations in pitch and volume) Flange Stereo flanger for jet wash effects. Delay 1 125ms slapback delay Delay 2 190ms slapback delay Chorus/ Plate Chorus with reverb plate Chorus/ Room Auto-wah guitar effect with reverb Reverse Scoop Mid-range scoop tone Pitch Shift Rotary Rotary speaker emulation ACTIVE EQUALIZATION - The Shenandoah® Stereo 80LT contains a 3 band (with sweepable mid) active equalizer on both channels 1 and 2. These EQ networks, similar to those found on professional sound consoles, are very useful tools when used correctly. LOW FREQUENCY EQ - The corner frequency of the low frequency section is 125 Hz, shelving curve. This frequency is particularly handy when dealing with low frequency feedback from a big dreadnaught guitar. A combination of volume reduction and turning down the low frequency control will generally get good results. Become familiar with the action of the controls since their effective gain range is quite large. The low frequency control is also hand...


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