The Aguilar AG Preamp/Direct Box is an all-analog preamp built around clarity, responsiveness, and detailed tone shaping. It is designed to preserve the natural voice of your bass while giving you precise control over its frequency balance.
Gain: Sets the input sensitivity and how strongly the signal enters the preamp.
Bass: Boosts or cuts the low frequencies for more depth or a tighter sound.
Low Mid: Shapes body and fullness, helping the bass sound warm or leaner.
High Mid: Adjusts punch, attack, and note definition so your bass can cut through a band.
Treble: Adds brightness, string detail, and clarity.
Master: Controls the overall output level.
Deep/Bright switch: Adds extra low-frequency weight, high-frequency presence, or both.
Engage footswitch: Turns the preamp on or bypasses its processing.
Connections and practical features
Balanced XLR direct output: Sends a bass signal straight to a mixing console, PA system, or recording interface.
Pre/Post switch: Determines whether the DI signal is taken before or after the preamp's tone-shaping circuitry.
Ground lift: Helps address unwanted hum caused by ground loops.
Headphone output and auxiliary input: Lets you practice quietly while playing along with music from an external device.
18V operation: Provides generous headroom for a clean, dynamic signal. The required power supply is not included.
