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A C O U S T I C   B L E N D E R   S Y S T E M

10

BATTERY LOW SWITCH / INDICATOR

With the STEREO IN jack plugged in, push this switch IN to check your battery. 
If the LED lights up when you push the switch in, you should replace your battery. 

HEADPHONES OUTPUT

This sends a line-level mixed signal to 32

headphones or a power amp input. 

This is the BLENDER’s only line level output.

This output will send a mono mixed signal to a pair of headphones. The signal is not a stereo image, 
but a composite of the MICROPHONE and TRANSDUCER Channels appearing in both the left and right channels 
of your headphones. 

The signal produced is powerful enough to drive many power amps. To drive a power amp, split the signal 
with a Stereo Y Cable (available from Fishman). Send either (or both) of the mono outputs to your 
power amp input(s). 

DO NOT insert a mono plug into the Phones jack. It will short out the headphone amplifier circuit. 

MUTE SWITCH

Shuts off all signals to the main outputs of the BLENDER and allows you to disconnect your cable from the
BLENDER or from your instrument silently.  

It does not affect the Phones jack or the Effects Sends. You may connect an electronic tuner to the TRANSDUCER
Effects Send and tune your instrument in silence with the Mute switch in. 

DURING BATTERY OPERATION:

Under battery power, the Mute switch does NOT silence the harmful turn on/off transients that occur when 
plugging in and unplugging the STEREO IN jack.  

•  Always plug into the STEREO IN jack before turning on your amplifier or PA System.

•  Always unplug the STEREO IN jack after turning off your amplifier or PA System.

•  When changing instruments, always unplug the cable at the instrument’s output jack, 

not at the BLENDER’s STEREO IN jack.

NOTE: The Mute switch does not normally affect the Phones jack.  Should you want to have the Mute affect the
Phones jack, the BLENDER can be modified by Fishman or by a qualified technician.

OUTPUT LEVEL

Controls the overall volume of the TRANSDUCER, MICROPHONE and MIX outputs as well as the MIX Effects Send. 
This does not affect the MICROPHONE or TRANSDUCER Effects Sends.

Summary of Contents for ACOUSTIC BASS BLENDER

Page 1: ...ACOUSTIC BLENDER A C O U S T I C I N S T R U M E N T P R E A M P ACOUSTIC BASS BLENDER A C O U S T I C B A S S P R E A M P O W N E R S M A N U A L...

Page 2: ...d play with complete free dom of movement 2 STEREO INSTRUMENT CABLE The microphone and pickup signals are fed into a stereo jack also called TRS or Tip Ring Sleeve that is mounted on the instrument Th...

Page 3: ...t Switch to connect a microphone to the stereo endpin jack for the system to operate See Page 22 PICKUP AND MICROPHONE WITH SEPARATE MONO INSTRUMENT CABLES You may choose to route the pickup and micro...

Page 4: ...ont panel 3 Set all front panel switches to the OUT position Set both Gain controls fully counter clockwise Set the Output Level to 3 00 Set Bass and Treble controls to 12 00 4 Run a cable from one of...

Page 5: ...13 TRANSDUCER TREBLE CONTROL See Page 9 14 TRANSDUCER TRIM CONTROL See Page 9 15 TRANSDUCER PHASE SWITCH See Page 9 16 BATTERY LOW LED See Page 10 17 HEADPHONES OUTPUT See Page 10 18 MUTE SWITCH See P...

Page 6: ...ICROPHONE channel and the Tip signal goes to the TRANSDUCER channel 2 TRANSDUCER CHANNEL ONLY OPERATION Mono Cable One signal from your instrument is routed through a mono instrument cable to the STER...

Page 7: ...ntom Power for applications that use a dynamic microphone or pickup The OUT position provides 4 5 Volt Phantom Power to the Ring of the STEREO IN jack OR the Tip of the AUX MIC IN jack BASS CUT SWITCH...

Page 8: ...ill be either in the same position or one in and one out When you set up in a different venue the Phase of the house sound system and room acoustics can contribute to different Phase relationships com...

Page 9: ...n also be used to calibrate the MICROPHONE and TRANSDUCER Gain controls If there is a disparity between the signal strength of the two channels use the Trim control to normalize the levels Try setting...

Page 10: ...TCH Shuts off all signals to the main outputs of the BLENDER and allows you to disconnect your cable from the BLENDER or from your instrument silently It does not affect the Phones jack or the Effects...

Page 11: ...EFFECTS LOOP allows you to interface blended MICROPHONE and TRANSDUCER Channel signals with outboard signal processors and effects such as equalizers compressors volume pedals and reverb units The MI...

Page 12: ...ignals through a stereo instrument cable you may need to install a Fishman SMART SWITCH for the system to operate See Page 22 2 PICKUP ALONE Single pickup is sent through a mono instrument cable to th...

Page 13: ...pickup signal Tip is sent to the TRANSDUCER Channel C Surface mount pickup signal Ring is sent to the MICROPHONE Channel Phantom Power must be turned OFF switch pushed IN NOTE Both signals may be rou...

Page 14: ...ut of your PA System The PA will see a blended signal both microphone and pickup This is a great way to control exactly what the soundman has to work with and what the audience will hear 3 XLR MIX AND...

Page 15: ...5 4 USING MULTIPLE OUTPUTS All of the Acoustic BLENDER s outputs can be used simultaneously This offers virtually any combination of signal routing and interfacing options to accommodate a wide variet...

Page 16: ...S LOOPS The BLENDER has three Effects Loops one each for the MICROPHONE TRANSDUCER and MIXED signals The Sends can be used as additional outputs and the Returns can be used as alternate inputs The TRA...

Page 17: ...AC POWER AC ADAPTER IS DAISY CHAINED TO OTHER DEVICES MUTE SWITCH IN DEVICE APPEARING AT MIX EFFECTS RETURN IS BREAKING THE SIGNAL PATH REMOVE OTHER DEVICES FROM BLENDER s POWER SUPPLY SET MUTE SWITCH...

Page 18: ...nput Level 20 dBV Input Overload 20 Hz 20 kHz 14dBV Input Stage Impedance Transducer 10 Megohms Microphone without Phantom Power 1 0 Megohms Microphone with Phantom Power 2 2 kilohms Phantom Power 4 5...

Page 19: ...ly mounted in or outside the sound chamber of most stringed instruments The microphone with a TRS stereo jack included can be attached to the instru ment using one of the following mounting systems GM...

Page 20: ...s are Guitar 95 105 Hz Bass 65 75 Hz Violin 275 300 Hz Cello 125 135 Hz To address Cavity Resonance Feedback 1 POSITION THE MICROPHONE away from the opening on non flat top instruments This works well...

Page 21: ...At high volume levels when a mic ed instrument and speaker are in phase the sound pressure from the speaker will excite the instrument s sound chamber creating a feedback loop at the instrument s lowe...

Page 22: ...wn GLM 200 microphone to a switching jack configura tion creates an electronic version of musical chairs in which the microphone sig nal and negative battery wire are both vying for the same RING term...

Page 23: ...23 A C O U S T I C B L E N D E R S Y S T E M N O T E S...

Page 24: ...h the Return Policy as follows This warranty remains valid only if repairs are performed by FISHMAN TRANSDUCERS This warranty gives you specific legal rights and you may also have other rights which m...

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