SKU: 52732558963
ruby guitar pedal

ruby guitar pedal Mad Professor Ruby Red Booster guitar effect pedal – Al Bien's West Chester Music Store

Sale price$18.59 Regular price$20.66
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Description

ruby guitar pedal Mad Professor Ruby Red Booster guitar effect pedal – Al Bien's West Chester Music StoreA combination of two boosters and a switchable buffer. RUBY RED BOOSTER A COMBINATION OF TWO BOOSTERS AND A SWITCHABLE BUFFER You can use Ruby Red Booster as a treble booster, a clean boost or an overdrive unit or any combination of the above. Also, it can be used with or without the buffer. The Treble Booster is a fine tuned booster for just the right treble frequency with carefully designed bandwidth and an optimized slope of bass cut. The booster

A combination of two boosters and a switchable buffer.

RUBY RED BOOSTER - A COMBINATION OF TWO BOOSTERS AND A SWITCHABLE BUFFER

You can use Ruby Red Booster as a treble booster, a clean boost or an overdrive unit or any combination of the above. Also, it can be used with or without the buffer. 

The Treble Booster is a fine-tuned booster for just the right treble frequency with carefully designed bandwidth and an optimized slope of bass cut. The booster circuit is designed to overdrive the amplifier inputs from nice shimmer to heavy overdrive, thanks to the massive 40dB of boost. The booster is tuned so that it produces musical distortion by itself on higher boost settings. 

You can control the total level of the two boosters with the Master Volume control and also use the Master Volume to achieve distortion from the unit. 

We truly think Ruby Red Booster is the best sounding and most versatile booster for electric guitar on the market!

CONTROLS
MASTER: This is a volume control that is located directly after the booster circuit and when set to max it is just a resistor to ground. This control sets the final output and it can be used to control the output when the pedal is used for overdrive (Boost turned up). TREBLE: Set treble boost from zero to about 15dB. The treble frequency and bandwidth are carefully tuned with an optimized bass slope. BOOST: The gain of the booster and can be set from unity to about 40dB of boost. When this control is cranked the unit will distort within itself. BUFFER: Inside the pedal, there is a switch for a high-quality buffer. You can set the pedal for true bypass mode or “buffer on” in bypass mode. We recommend using a buffer in your signal chain to help with the treble and gain loss from using many pedals and/or long cables. Pedals are shipped “buffer on”.The Mad Professor RRB Buffer is an amplifier with a voltage gain of exactly 1x (times). The RRB buffer output impedance is set a little lower than the Dc resistance of a standard guitar pickup to equalize the effect of following load impedance. Input impedance is set at 500K for a medium load to standard guitar pickups. This keeps the tone and guitar volume taper natural.
SETTINGS
TREBLE BOOST: Set Boost to minimum and Master to maximum and adjust for a desired treble boost with the Treble knob. STRAIGHT BOOST: Set Treble to minimum and Master to maximum and adjust Boost to the desired effect. BOOST: The gain of the booster and can be set from unity to about 40dB of boost. When this control is cranked the unit will distort within itself. DISTORTION: Set Boost to maximum and adjust output level with Master to unity, then adjust Boost for desired depth and overdrive. Treble can be used to enhance distortion effect. CAUTION ! Never operate the unit with its bottom removed or damage will most likely occur.
ELECTRICAL SPECIFICATIONS
Input impedance: 500K Ohm’s Recommended output load: 50K Ohm’s or higher, effects output and buffer output Current consumption: 6mA at 9VDC DC supply voltage range: 8-18V Voltage gain: +40dB Treble boost: peak +15dB@4KHz Signal to noise ratio: 110 dB Effect 3dB bandwidth: 70Hz to 7KHz True bypass or buffered (switchable inside the pedal) POWER REQUIREMENTS 6F22 9V battery or DC eliminator 2.1 mm plug center negative and positive sleeve.
NOTES RRB is protected against wrong DC eliminator polarity. The fuzzy sound is a sign of low voltage. Maintain recommended voltage for best results. EAN: 643003309 120 3
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 52732558963

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Raquel Santos
Los Angeles, US
★★★★★ 5
Great item
Size: 2.0L
This fit my car perfectly! It was was easy to install as well. Great price as well.
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Reviewed in the United States on March 25, 2026
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Julie
Battle Creek, US
★★★★★ 5
Easy to install and great quality—perfect for my 2018 Civic
Size: 2.0L
I bought this for my 2018 Honda Civic, and it fits perfectly. It only takes a few minutes to install with just a few clips, and the process is simple. I am a woman and do it myself with no issues at all. The filter feels sturdy and well made. The thickness and overall quality are excellent. I’ve seen people mention “ease of cleaning,” but I don’t clean mine. I just remove, vacuum the area and replace it when needed. That might be a bit much, but it’s affordable and straightforward. I can’t say exactly how much it improves airflow or fuel mileage, but I consistently get over 40 miles per gallon in economy mode, so it’s clearly performing well. Overall, it’s a great product if you like handling basic car maintenance on your own.
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Reviewed in the United States on May 11, 2025
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Port Orchard, US
★★★★★ 5
Affordable and Reusable
Size: 2.0L
The engine filter was really affordable it cost less then $15. I bought this filter because it was recommended from a family friend. It fitted my honda civic perfectly. Replacing the filter was so easy to replace. Replacing or changing the filter was easy it only took a few mins to do. The quality of the filter is really good and it feels like its perfect for my car. I would buy this filter over and over again thats how great it is.
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Reviewed in the United States on June 4, 2024
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P.f
Whiting, US
★★★★★ 5
get it
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get it! i have a honda civic and i have bought this 3 times. works great!!
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Reviewed in the United States on February 25, 2026
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Gabriel Kliatchko
Lake Worth, US
★★★★★ 4
Worth buying again.
Size: 2.0L
Works great. Right fit. Great value
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Reviewed in the United States on March 2, 2026

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