Yamaha SLB300 Slient Bass (with knee pad and extention frame)
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The SLB300 is a brand-new type of electric upright bass that achieves natural sound and resonance by using the SRT POWERED system to simulate studio-quality sound in which the body resonance of a double bass was recorded using a high-quality microphone, all the while keeping a semi-solid body structure that emphasizes quietness and portability.
Refined Bass for Any Stage
Since the release of the SLB100 in 2000, Yamaha has continued to release SILENT Bass™ models that fulfill user needs, cementing the Yamaha SILENT Bass™ as the standout brand in the electric upright bass genre.
The SLB300 delivers realistic acoustic bass sound and playability plus unparalleled SILENT Bass™ functionality in a superb instrument that will bring the SILENT Bass™ to more players and listeners than ever before.
Body Designed for Pure Acoustic Tone
A hollow body chamber allows air to move in and out of the instrument, creating natural acoustic resonance.

SRT Powered System adds realistic body resonance
SLB300/SLB300PRO SILENT Bass™ employs SRT Powered System technology to deliver acoustic instrument sound and response that is virtually indistinguishable from the real thing.
<About the SRT Powered System>
The Yamaha SRT (Studio Response Technology) Powered System is a digital technology that employs in-depth analysis of the acoustic properties of actual musical instruments to add natural-sounding body resonance in real time to instruments such as the SILENT Bass™ that do not have a physical resonant body.
This system adds simulated body resonance to the analog signal output from the instrument’s pickup so that the performer’s own playing technique and nuances are delivered without compromise. No sampling or sample playback is involved.

* These graphs are provided to illustrate the effect of the SRT Powered System, and do not represent the system’s actual frequency response.
Three microphone types, EQ, and blend control deliver ideal sound
The SRT Powered System is used to simulate the response of three well-known and prized studio microphones. The microphones can be selected via the MIC TYPE selector, and the sound adjusted via the BLEND and BASS/TREBLE controls to ideally match a wide range of musical genres, ensembles, performance locations, and more.
Three Microphone Types
Mic 1 (Rich) - A highly valued vintage tube microphone that delivers smooth, well-balanced sound.
Mic 2 (Clean) - A dynamic microphone that is often used for its clear, well-defined sound.
Mic 3 (Warm) - With a different tube microphone character than Mic 1 (Rich), this classic microphone is known for a more emphasized low range and overall warmth.
Blend Control
The BLEND control adjusts the mix between the SRT powered microphone and the signal from the instrument’s pickup. The blend can be seamlessly adjusted from direct pickup output with no SRT simulation to full SRT simulation when the player desires full harmonic richness.
EQ Controls (Bass / Treble)
The BASS and TREBLE EQ controls are optimized specifically for this instrument, allowing the musician to choose their tonal response based on performance desire.

Designed to require no change from standard acoustic bass technique
A compact, simplified design adapts the most critical touchpoints from an acoustic bass, allowing the player to pick up the SLB300/SLB300PRO without change to their playing technique.
The SLB300/SLB300PRO also uses standard contrabass strings, so the user can choose the strings that he or she prefers.
![Antique style finish with consistent frame and body color for a natural wood feel [SLB300]](https://usa.yamaha.com/files/feature_10_d8ea4e97fff0569a7888b9a8ec74475f.jpg?impolicy=resize&imwid=600&imhei=600)
Antique style finish with consistent frame and body color for a natural wood feel
The body and frame feature an antique style finish that emphasizes the qualities of the wood and exudes a natural elegance. The finish will look and feel familiar to acoustic upright bass players.
* The wood grain will be different in each individual instrument.
Supplied soft case for easy transportation
When packed in its well-padded soft case, the SLB300/SLB300PRO takes up just approximately 25% of the volume of an acoustic bass. With a shoulder strap and exterior pockets for a bow and additional accessories, the bass is designed to accompany the on-the-go pro player.
Easy setup
The SLB300/SLB300PRO comes with an optimized pickup system and preamplifier already installed and can be directly connected to a wide range of equipment without further setup or adjustment.
BEF2 Extension frame

BKS2 Knee pad

Yamaha SLB300 specifications
- String Length 1,040mm (41")
- Neck Maple
- Body Spruce/Mahogany
- Frame Beech (Detachable)
- Finger Board Rosewood
- Machine Head 26:1 Gear Ratio
- Tailpiece Ebony (Reverse Type)
- Bridge Maple (Height Adjustable)
- Pickup Piezo Pickup
- Strings D'Addario Helicore Hybrid Light
- Electric Controls
- Volume control knob
- Treble control knob
- Bass control knob / Bypass button
- Blend control knob /icrophone type switch button
- In/Out Jacks Line Out
- Power Supply AA battery (alkali or nickel hydrogen) x 2
- Battery Life Alkaline Approx. 32 hours
- Nickel hydrogen Approx. 26 hours
- Weight Approx. 6.8 kg (15 lbs.)
- Accessories Soft case, Mute, Allen wrench

