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Aguilar DB 751, Manual, Page: 1 / 6

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Model DB 751 
Hybrid Bass Head

 

  

 

The DB 751 Bass Head features a combination of raw power and rich tone that 
continues the legacy of the DB 750.  The DB 751 is a groundbreaking hybrid with 
a discrete Mosfet output section and a 3-tube preamp. While maintaining the 
legendary sound of the DB 750, the DB 751 features improvements in the EQ 
section, a better control layout, detachable rack ears, and thermally controlled 
fans.  This amp has the headroom to bring your tone to life no matter what kind of 
music you are playing. For sound clips and sample settings be sure to visit our 
website at:www.aguilaramp.com. 

 

 
 

 
 

 

Aguilar Amplification LLC 

New York City 

 

www.aguilaramp.com 

 
 
 

 

Summary of Contents for DB 751

Page 1: ...e preamp While maintaining the legendary sound of the DB 750 the DB 751 features improvements in the EQ section a better control layout detachable rack ears and thermally controlled fans This amp has the headroom to bring your tone to life no matter what kind of music you are playing For sound clips and sample settings be sure to visit our website at www aguilaramp com Aguilar Amplification LLC Ne...

Page 2: ...5 dB of broadband boost at 5 7 kHz Effects Loop Send is push pull for line or instrument level Return is push pull for parallel or series operation Inputs One 1 4 input jack with an active passive switch Outputs Two Neutrik Speakon speaker outputs Jensen XLR balanced output 32dB with a pre post EQ switch and a ground lift switch Tuner out Cooling High quality whisper fans with thermal speed contro...

Page 3: ...tput Gain Knob Controls the gain of the preamp section Bright Switch Adds 5dB of broadband boost at 5 7 kHz Treble Knob 12 7 dB 4 kHz Midrange Knob 12 12 750Hz Bass Knob 12 12 40 Hz Deep Switch Adds 5dB of broadband boost at 30 Hz Master Knob Controls volume Clip Light Flashes if the preamp is clipping Turn down either the Gain the EQ or Master volume ...

Page 4: ... be adjusted with the return knob If you pull the return knob out for series operation without any effects plugged in the loop the loop will be open and no sound will result XLR Balanced Output Use the Pre EQ setting in a concert situation where the sound engineer is taking a signal into the house mixing console The engineer is now getting their feed before the preamp stage which allows them to us...

Page 5: ... tube heaters to warm up before full current is drawn by the valves 2 DC offset at the amp s output is monitored Only if none is present normal condition will the unit proceed with the self check protocol 3 Temperature on the MOSFET heat sink is checked and again only if normal temperature is detected will the status check continue 4 If all the voltages offsets and temperature are in accordance wi...

Page 6: ...ll be asked to send a copy with your amplifier Before sending your unit to Aguilar for repair you must receive a return authorization number from us Contact us via phone fax or email techsupport aguilaramp com with a description of the problem We will then issue to you a return authorization number You are responsible for all shipping charges You must ship the unit to us freight prepaid We will re...

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