Zoom B9.1ut Bass Effects Console



The Zoom B9.1ut bass effects console combines the most technically advanced audio engine with the warmth of a classic 12AU7 tube to produce the richest tones imaginable. Its ultra-fast ZFX-3 processor means all the world’s most famous amplifiers, cabinets and effects are modeled with stunning accuracy. For the discerning bassist, the B9.1ut represents an impressive and powerful solution for creating rich, detailed bass tone.

96 kHz Sampling Provides High-Resolution for Sonic Accuracy

Delivering high-resolution, 96kHz sampling processing with 24-bit A-to-D and D-to-A conversion, the B9.1ut rivals the processing equipment found in the finest studios. This means that the wide pitch, timbre and dynamic ranges created by modern bass styles are handled without degradation, ensuring clear, transparent sound.

Advanced ZFX-3 Audio Engine

The outstanding performance of the B9.1ut is made possible by its ultra-fast, 32-bit, ZFX-3 engine. This highly sophisticated processor means that every nuance of your performance is delivered as you imagine it, because the power of this processor reproduces every possible amp model and effect with true clarity.

Accelerator Features 12AU7 Tube

Combining the raw processing power of the ZFX-3 with the 12AU7 tube accelerator produces richer harmonics and organic tone. By adjusting the mix balance, the thick characteristics of the 12AU7 tube and the striking clarity of the ZXF-3 can be adjusted so that saturation is natural and focused.

The World of Bass at Your Feet

With the world’s most famous bass amplifiers and stomp boxes at your disposal, you have all the low end drive and sonic transparency of timeless classics. From Ampeg, Fender, and Marshall as well as more recent models such as Hartke, SWR, and Aguilar, a whole world of bass tone comes complete on the B9.1ut.

Create Exactly the Right Bass Tone for Any Situation

The B9.1ut’s cabinet simulator emulates the low frequency characteristics and sonic behavior of vintage and modern bass speaker cabinets. This gives you the full dynamic range of bass you get from large speaker cabinets even when playing through a flat-response system such as headphones, studio monitors and even when using a small practice amp. Turn the cabinet simulator off to return to a direct amp sound. For live or studio performance, the B9.1ut gives you the right tone when and where you need it.

Studio-Quality 6-Band Semi-Parametric Equalizer On-Board

A built-in 6-band semi-parametric equalizer provides tone flexibility and control on a level that rivals gear found in studios around the world. Center frequencies can be adjusted for each band, and the EQ curve can be set to peaking (narrow/wide), shelving, low-pass, or high-pass. Dedicated knobs in the preamp section make it easy to adjust the boost or cut amount for each band.

112 Effects Specially Tuned for Bass

The B9.1ut offers a versatile collection of 112 effect types arranged in 10 modules. They are optimized for the dynamic and wide-range signal created by the modern bass. The effect selection includes limiter/compressor for controlling peak levels and ensuring uniformity, auto wah and resonance filter, octaver to produce ultra low notes, defret to simulate a fretless bass, detune for a chorus effect and other eminently usable choices. There are high-quality studio type effects such as delay with hold function up to 5000 milliseconds, vintage tape echo, stereo chorus with exceptional sonic clarity, flanger, phaser, pitch shifter and more. The module insert position can be specified for the preamp section and wah/filter effects to accommodate even more advanced creativity.

Versatile Bass Synthesizer On-Board for Additional Flexibility

With its full bass synthesizer on-board, the B9.1ut provides modern, fully editable synth sounds. Its mono synthesizer offers a choice of three waveform settings: sawtooth, square and PWM. The 4-voice synthesizer creates rich and deep harmonic voicings. You can also use the foot switches to play the pedal synthesizer. Two types of filtering with excellent tracking are also available.

Z-Pedal Opens Up New Dimensions

The built-in Z-type expression pedal developed by Zoom captures up/down and sideways movement for controlling more effect parameters with subtle changes. In addition to conventional expression pedal parameters such as volume, wah, or pitch shift, you can control the mixing balance between direct and synthesizer/drive sound, adjust the rate of modulation effects or control the delay/reverb mixing level. The Z-pedal lets you build highly complex sounds by assigning up to four parameters each in the vertical and horizontal direction. Of course, there are also effects specially designed for use with the Z-pedal for a completely new realm of bass pedal performance.

80 Artist Preset Patches for Stage and Studio

In addition to its vintage amp and stomp box models, the B9.1ut comes preprogrammed with artist-created bass sound settings for major genres such as rock, jazz, and funk. Doug Wimbish, JD DeServio and Eric Struthers have each provided customized preset patches. Enjoy professional-quality bass tone thanks to 80 preprogrammed patches. And for additional creativity, storage capacity for another 80 patches is also provided.

Looping Function Records Phrases of up to 5.4 Seconds

With its looping feature, the B9.1ut lets you record a bass line while creating additional layers over the loop. You can overdub several phrases in real time, or play a solo with looped phrases in the background for a great live performance.

Advanced User Interface Optimized for use On Stage

Designed with all the functionality and ease of a traditional amplifier, the preamp section on the B9.1ut lets you make gain, level, and 6-band EQ adjustments on the fly. In every aspect, the advanced user interface of the B9.1ut is designed for stress-free, efficient operation, letting you achieve the tone you want so you can focus on your performance. The footswitches are highly flexible and can be assigned to patch changes, bank changes, module on/off switching, hold delay on/off switching, bypass/mute control, tap tempo input and more.

World's Fastest Patch Change: 7 ms

With the fastest patch change available, the B9.1ut eliminates dropout when switching patches. Its record-setting speed of 0.007 seconds means the B9.1ut literally never misses a beat. Change the patch in the beginning, middle or end of a solo, or any other time during your performance, without dropout.

Built-In Auto-Chromatic Tuner Also Supports Multi-String Bass

The auto-chromatic tuner can be called up instantly. Bright LED indicators make the note readout easy to see on a dark stage. Its calibration range is 435 to 445 Hz and mute tuning is also possible for enhanced onstage flexibility.

Zoom Noise Reduction (ZNR) On-board

The built-in ZNR circuit developed by Zoom provides optimized performance for bass. While minimizing any alteration of the original sound, ZNR removes unwanted noise in the playing pauses. Even the tails of long sustain notes come out beautifully with natural release that is ultra-quiet.

Low noise: 120 dB S/N Ratio and -100 dB Noise Floor

Specifications such as a signal-to-noise ratio of 120 dB and noise floor of -100 dB demonstrate a level of performance that is unsurpassed. Background noise is a thing of the past, leaving you free to produce only superbly transparent bass performances.

Sturdy Metal Chassis and Tough Enclosure

The solid metal chassis ensures that the unit can stand up to the rigors of use on stage. On the road or in the studio, the B9.1ut will not let you down. The sleek rounded shape of the sturdy enclosure and its chrome-plated switches and knobs are as elegant as they are durable, proving there is no sacrificing beauty for brawn.

DI Functionality with Stereo XLR Connectors

The B9.1ut has a built-in set of stereo XLR outputs that lets you establish a balanced signal path for clean sound. Go directly to a mixing console or PA system without additional gear. A convenient pre/post switch makes it possible to use the effects from the main outputs without passing through the A/D converter when using the XLR outputs.

USB Audio Interface

The USB port on the B9.1ut provides audio interface capability for recording to digital audio software. To utilize the sounds of the B9.1ut in a computer-based recording environment, simply connect the unit via USB to your computer. The B9.1ut comes bundled with Cubase LE 4 so you can start creating music right away. And because playback from the software application can be monitored on the B9.1ut itself, you can record and monitor with no latency.

MIDI Interface On-Board

The ability to exchange MIDI messages with other devices opens up a wealth of performance and data management possibilities. Switch patches in conjunction with a MIDI enabled preamp, or use the unit as a real-time controller for external MIDI equipment. Connecting the B9.1ut via its MIDI interface to a computer allows the use of dedicated editor/librarian software* to edit and store patch data.

AUX IN Jacks Accommodate External Sources

External sources such as a CD or MP3 player can be connected to the AUX input for use as backing in a jam session. Or use the connectors as a stereo line input for the USB audio interface.

External Send/Return Loop Connectors

A compact or rackmount effect or other device can be connected in an external loop and used as part of a patch. Send/return levels as well as on/off status are stored as part of the patch. With the B9.1ut, you’ll find new ways to use your favorite effects and enhance your creativity in many ways.

Amp/Stomp Box Models

Marshall 1992 Super Bass + 1935A
A vintage tube amp featuring the characteristic warm and mild Marshall overdrive sound. Great for the active bass player leading a band.

SWR SM-900 + Goliath
By mounting a tweeter in the speaker cabinet, this bass amp succeeds in combining a rich low end with clear highs. Very popular among slap bassists.

Ampeg B-15 + 1 x 15" combo
Vintage combo amp preferred by James Jamerson. Creates a warm and rounded bass tone often heard on Motown records of the 1960s.

Acoustic 360 + 301
Solid-state amp embraced by many top bassists of the seventies and eighties such as Jaco Pastorius and John Paul Jones. Tight midrange and warm low end are its major features.

Aguilar DB750 + GS410
High-class handmade bass amplifier endorsed by many of the world's top-level bass players. Clear outline and powerful, clean bass sound are its hallmarks.

Hartke HA3500 + 4.5XL
With its aluminum-cone speaker, this classic bass amp and cabinet achieve clear reproduction over the entire range. Famous for its great response and transparent sound that preserves the original character of the instrument, this was the sound that Jaco loved.

Polytone Mini Brute III
Compact vintage combo amp with a single 15-inch speaker. Characterized by a distinct midrange, the setting is great for jazz sessions.

Gallien Krueger 800RB + 401RBH
Best-selling model used extensively by rock and heavy metal bassists. Renowned for its gutsy punch and solid bass sound.

Fender Bassman 100 + 4 x 12" cabinet
Tube amplifier with silver faceplate from the early days of the electric bass. Creates a vintage bass sound that is a perfect match for vintage playing.

Trace Elliot AH-500 + 1048H / 1518
British-made bass amp with a firm core and distinct contours. Makes those phrases flow easily and smoothly for rock and pop.

Walter Woods M300 + Bag End S-12B
This bass amp gives prominence to the original sound and brings out the character of the instrument. The smooth and natural sound is also favored by many upright bass players.

Tube Preamp (Zoom original)
Simulates a high-class tube preamplifier such as those used in recording studios. Creates a solid yet smooth and supple sound.

Sansamp Bass Driver DI
This amp simulator recreates the characteristic drive feeling of a tube device. It is a favorite choice of bass players both for live playing and for recording.

Ibanez TS9 Tube Screamer
Stomp box often used as booster for tube amps. Produces natural overdrive sound that clearly brings out those picking nuances.

Boss ODB-3
The ODB-3 is designed specifically for bass and belongs to the famous Boss OD series of overdrive stomp boxes. It produces aggressive overdrive characterized by flashy highs.

MXR Bass D.I.+
Foot pedal type preamp incorporating a clean channel and a distortion channel. The B9.1ut simulates the sound of the distortion channel with its solid body.

Dallas-Arbiter Fuzz Face
Fuzz pedal famous for its unique round "face" design. Aggressive vintage fuzz sound fueled by the energy of germanium diodes.

Boss MT-2
Extreme distortion pedal for the ultimate metal domain. Characteristically fat distortion in the mid and low range creates ultra long sustain.

Electro-Harmonix Big Muff
Since its introduction in 1968, this vintage fuzz pedal has fascinated many great bassists. Long sustain and thick, sweet distortion are its most prominent characteristics.

Digital Fuzz (Zoom original)
This digital fuzz effect developed by Zoom will go places where analog simply can't. Its "broken" quality ushers in a new fuzz generation.

  • Ultra-fast 32-bit DSP ZFX-3 processor on-board
  • 96kHz sampling rate / 24-bit A/D/D/A converters for accurate bass models
  • USB interface for connecting directly to a computer
  • 3D Z-Pedal allows for multi-dimensional parameter control
  • 6-band semi-parametric EQ for complete tone control
  • World’s fastest patch change speed: 7 ms
  • One 12AU7 tube for natural overdrive/compression and drive/volume
  • 112 effects specially tuned for bass
  • 80 preset artist patches + 80 user patches
  • Built-in Zoom Noise Reduction
  • Versatile bass synthesizer on-board with filtering and waveform control
  • Stereo XLR output for stage or studio
  • Built-in MIDI interface
  • External send/return loop on-board
  • Sturdy metal chassis for roadworthy durability
  • Intuitive interface great for live or studio use
  • Steinberg Cubase® LE 4 software included
  • Specs: signal-to-noise ratio of 120 dB and noise floor of -100 dB
  • Free editor/librarian software available for download at www.zoom.co.jp
  • Ampeg SVT + 810E
  • All-tube bass amplifier incorporating original Super Valve Technology. Thanks to its gutsy drive sound, this has remained one of the most popular bass amps ever.

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