[new] Darkglass Microtubes B7K Ultra V2 with Aux In
[new] Darkglass Microtubes B7K Ultra V2 with Aux In
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Description & Condition
Description & Condition
It has gained worldwide popularity in recent years and is trusted by many professional bassists working at the forefront of their field.
This model is a highly successful overdrive/preamp.
It offers a deep, intense distortion sound with a flexible equalizer.
Low Mid and High Mid are each selectable from three options.
Together with the Grunt switch, which changes the nuance of the low frequencies, and the Attack switch, which changes the strength of the high frequencies, this allows for a wide variety of sound makeup.
Cabinet simulation, headphone out, and other features make this an omnidirectional device.
Specs and terminals
Master
Microtubes B7K Ultra V2 with Aux-In Adjusts the overall volume. Can also be used as a level control for the D.I. out.
Blend.
Blend controls the mix balance between the clean and overdrive signals. Regardless of the Level knob, which controls the volume of the overdrive signal, the clean signal is at unity gain, and the Blend knob is used to fine-tune the balance of the mix.
Level.
Sets the volume of the overdrive signal.
Drive.
Sets the amount of saturation of the overdrive signal.
Attack Switch
Sets the amount of high frequencies when saturated. The "Boost" setting emphasizes presence for a clearer sound. The "Flat" position has no effect on the tone. The "Cut" position reduces the amount of high frequencies, resulting in a warmer sound.
Grunt Switch
Selects the low-frequency boost level before the clipping stage from 3 modes and sets the intensity of the low-frequency range.
Bass
Boosts/cuts bass frequencies up to ±12dB with 100Hz as the center frequency.
Lo Mids
Boosts/cuts low frequencies up to ±12dB with 250Hz, 500Hz, or 1kHz as the center frequency.
Hi Mids
Boosts or cuts the frequency selected from 750Hz, 1.5kHz, and 3kHz up to ±12dB as the center frequency.
Treble
Boosts or cuts up to ±12dB with 5kHz as the center frequency.
Direct Output
Balanced XLR output, useful for connecting a mic preamp, PA system, etc.
Ground lift
Disconnects the direct output ground to prevent ground loops. The switch should be set to the lower noise position. This switch setting does not affect the 1/4″ phone output.
Cab Sim
Turns cabinet simulation on or off for the direct outputs. This switch allows you to output a signal that completely bypasses all digital circuitry if desired.
Headphones
A 3.5mm stereo jack headphone amplifier is built in, capable of driving a minimum load of 16 ohms. Level adjustment is made via the master volume control.
USB
Micro-USB B connector to connect to a PC / Mac to load a cabinet simulation impulse response (IR) into the pedal and control various settings.
Aux In
This 3.5mm stereo input can be used to connect a PC or smartphone, etc. Signal input to the Aux In will be output to the headphone out only. There is no volume control on the pedal itself for the signal input to the Aux In input, so the volume should be controlled by the device to which it is connected. Please be careful when using this pedal.
Due to the popularity of this product, it may be available on order.
Free shipping will be provided.
[Brand New
Text: Shunsuke Saga
Will be shipped in a sturdy cardboard box.
Will be packed with hard cardboard box.
will be packed with hard cardboard box.
We do ship internationally.
Contact Info
Contact Info
LINE : vwj2699r
WeChat : s_saga
email : saga@villagegreen.jp
TEL : 045 548 6661
Price includes VAT & Duties & Shipping Fee
Price includes VAT & Duties & Shipping Fee

At Geek in Box, we're dedicated to connecting musicians with their perfect instrument, no matter where they are. That’s why we’ve eliminated the barrier of shipping costs. We are thrilled to offer free and fast international shipping on all orders, to every country.
Even better, all prices shown on our site are final.
They include VAT, duties, and shipping fees—so there are no additional charges after purchase.
Our Commitment to Excellence:
Shipping from our home in Japan, we bring a level of care and precision to logistics that is second to none. With a track record of over 10,000 successful international deliveries, we have perfected the process.
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Your bass will be securely packed using durable, high-quality materials to ensure it arrives in flawless, ready-to-play condition.
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Shop our collection today and experience the confidence of knowing your dream bass is just a click away—with the shipping on us.
1. Our Total Satisfaction Promise
On Condition & Functionality: In the rare event that your instrument arrives in a condition different from our detailed description, or if it has any operational issues, we offer a 100% full refund. We will also arrange and cover the cost of return shipping.
On Personal Preference: Finding the perfect bass is a personal journey. If the instrument you receive isn't the right fit for your hands or your sound, you are welcome to return it. In this case, we will refund the full purchase price of the item; we simply ask that you cover the return shipping costs.
2. The GIB Buy-Back & Upgrade Program
We see our clients as partners in music. Your musical needs may evolve, and we want to support that journey. That's why we created a revolutionary program that protects your investment and makes it easy to upgrade.
Guaranteed Buy-Back: Should you ever decide to part with a bass purchased from us, we guarantee to buy it back.
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Your Upgrade Bonus: When you are ready for your next instrument, our program offers even more value. If you use our buy-back service to trade up to another bass in our collection, you will receive an additional 10% discount on your new purchase.
This unique program provides an unparalleled safety net, ensuring the lasting value of your instrument and creating a seamless, rewarding path for your evolution as a musician.
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