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Make note of the following precautions when using the BLENDER under battery power.

1) To avoid excessive battery drain (Battery life is an estimated 15 hours continuous use):

a. Unplug the STEREO IN jack when the the unit is not being used.

b. When using the BLENDER without a mini-electret microphone, be sure the Phantom Power is OFF 
(switch is pushed IN).

2) To avoid hazardous TURN ON/OFF TRANSIENTS:

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

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

3) Under battery power, the AUX / MIC IN jack will work only when the STEREO IN jack is plugged in. 

(See Page 12 # 3)

BATTERY COMPARTMENT

To replace the battery 

(See Page 10) 

lift the battery compartment lid on the top of the BLENDER 

and install a 9 Volt alkaline battery. 

STEREO IN 

The STEREO IN jack is a TRS (Tip / Ring Sleeve) input that can accept two discrete signals through 
a stereo instrument cable. 

The STEREO IN jack can function in two modes:

1) MICROPHONE and TRANSDUCER CHANNELS OPERATION (Stereo Cable):  Two signals from your instrument
(For example: Internal microphone and pickup) are routed through a stereo instrument cable to the STEREO IN jack.
The Ring signal goes to the MICROPHONE 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 STEREO IN jack. This signal goes to the TRANSDUCER channel.

AUX / MIC IN

Accepts a mono signal from a microphone or pickup. This signal is controlled by the the MICROPHONE channel. 

The AUX / MIC IN jack can provide 4.5 Volt Phantom Power to a mini-condenser microphone. 
This input can accept either magnetic or piezo pickups. Piezo signals will have a slight roll off at lower frequencies.

The AUX / MIC IN jack is an alternative to the Ring terminal of the STEREO IN jack. 
Sometimes, using a stereo instrument cable for both of your signals is not practical. The AUX / MIC IN jack allows
you the option of sending two signals through separate mono instrument cables to both the AUX / MIC IN jack and
the STEREO IN jack. 

AUX/MIC IN OVERRIDE: If you are sending two signals through the STEREO IN jack and you plug a third signal
into the AUX/MIC IN, the signal appearing at the RING of the STEREO IN jack will be replaced (overridden) by
the signal appearing at the AUX / MIC IN jack.     

(See page 13  - #6)

BATTERY POWER

I N P U T   J A C K S

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

6

The BLENDER has no ON/OFF switch. Under battery power, the BLENDER is turned on only when the 
STEREO IN jack is plugged in. 

Power is always on when using an AC Adapter  (See Page 11).

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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