Core technology for good sound, Preamp.MARCUS HERITAGE-3SIRE preamp is a perfect example that represents our technology and philosophy integrated into our instruments. With multiple tone controls, you can have total command in finding and getting the tone you want. The use of 18v battery enables the player to attain unaltered natural sound with strong and powerful output. With 3 band EQ, the player can have versatility in sound that can be suited for all occasions of music sessions. All models come with option for active and passive setting. Even in the passive mode, volume, tone, pickup balancer is fully functional, giving the player more controls for the tone in any mode. All models also come with sweepable midrange control option that Marcus Miller advocates as a must have option. The middle frequency control knob allows the player to set sound frequency anywhere between 200Hz~1kHz. This option will be very handy in finding the desired sound.MODERN FEEL & SOUNDThe core component of an electric guitar is the magnetic pickups that detects the vibration of the strings and amplify it through speakers, like that of a mircophone. Therefore the quality and tendency of the pickups greatly influence the tone and characteristics of the sound.Big polepiece Humbucker Bass Sets are available as newly developed Soap bar style humbucker pickups that produces strong output with punchy and tight mid tone.NEW MARCUS MILLERMODERN BASS TYPEWith modern feel and design, this new bass can produce thedesired sound for any genres of music from soft to strong metalgrudge music.MAHOGANY BODY’SRICH AND WARM TONEThe body wood is made with mahogany wood with beautiful flamedmaple veneer on top. Mahogany is known for its warmth and fullbodied tone which produces deep and rich mid and low round ton.