The Aguilar Tone Hammer® preamp/direct box is so strong and powerful it could only be called the "Tone Hammer"! Based on the respected OBP-3 preamp, the Tone Hammer® features fully sweepable midrange frequencies in addition to bass and treble controls. With the Tone Hammer's pristine D.I. you are set for the studio or the stage.

To give this tone shaping unit the ultimate flexibility we are introducing our proprietary Adaptive Gain Shaping circuitry (AGS). AGS allows the player to kick in an additional gain structure and EQ with the "stomp" of a button. You can now go from modern slap sounds to vintage or overdriven. 18 volt operation gives the Tone Hammer® plenty of headroom to reproduce the most dynamic playing style. Separate Gain and Master controls allow you to dial in just the right gain structure for any instrument.

The Tone Hammer® is the essential preamp/direct box for every bassist's tool box.

Pre/Post DI
Unbalanced output can drive a power amp
AGS circuitry
Cut and boost of treble, mid and bass frequencies
Fully sweepable midrange frequencies
Powered by two nine volt batteries, phantom power or optional universal power supply
Ground lift switch
Heavy Duty steel construction
Inputs: One 1/4" jack
Outputs: One 1/4" jack, One XLR (nominal output - 14 dBu balanced)
Bass +/- 18 dB @ 40 Hz
Mid +/- 17 dB @ 180 Hz to 1 kHz
Treble +/- 18 dB @ 4 kHz
Ground lift switch
Pre/Post DI switch
Engage switch
AGS switch
Warranty: Three year limited
Optional: 18 volt power supply

Year Condition Case
2016 Brand New None


The Guitar Sanctuary
Brian Meader
McKinney, TX
3:14 PM
Store Hours: Tuesday - Saturday 10am to 6pm

The Guitar Sanctuary does accept returned items as long as arrangements are made for such within 48 hours of purchase/receipt. Returned items MUST be in the original condition and packing (including owner’s manual, un-used warranty card, any other items that came with the item) in order to qualify for a refund. No refunds are available for “special” ordered guitars or amplifiers (items that were not in stock, but rather ordered per the customers request. The customer is responsible for all freight charges and credit card processing fees incurred in the course of the sale. We cannot refund freight charges. The Guitar Sanctuary will charge a 20% restocking fee for returned effects pedals and amplifiers and a 10% restocking fee for Guitars. The only exceptions are for products that are defective.  Please only purchase an item after you are certain it is right for you! Layaway: You can lay-a-way any product for a maximum of three months. Lay-a-way requires a 25% non-refundable deposit. We will not be able to ship the item until it is paid for in full and as a lay-a-way purchase, does not qualify for the 48 hour approval policy. International Sales: We can ship most guitars and other products internationally. We prefer money orders, cashier’s checks, or bank wire transfers in U.S. dollars. Shipping quotes are only valid for 48 hours. Please consult with your local officials about taxes, duties, currency exchange rates, etc.