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Description
Electro-Harmonix MAINFRAME Bit Crusher PedalDirect from electro harmonix"Buzz. Beep and bloop. We're high on the lo fi sounds of "old school" games, toys and terminals and the Mainframe Bit Crusher takes us back in time to when Pac Man and Donkey Kong ruled the arcades, to when the Commodore 64 was high tech. It provides sample rate reduction ranging from 48kHz to 110Hz. A little background the sample rate is the number of times per second that a sample or snapshot of an analog signal is taken.
Direct from electro-harmonix..."Buzz. Beep and bloop. We're high on the lo-fi sounds of "old-school" games, toys and terminals and the Mainframe Bit Crusher takes us back in time to when Pac Man and Donkey Kong ruled the arcades, to when the Commodore 64 was high tech.
It provides sample rate reduction ranging from 48kHz to 110Hz. A little background... the sample rate is the number of times per second that a sample or snapshot of an analog signal is taken. For example, CDs (remember them?) had a sample rate of 44.1kHz which means that the original analog signal is sampled 44,100 times per second.
The sample rate defines the frequency range that can be reproduced while maintaining good fidelity. When the sample rate is reduced the quality of the audio is degraded and aliasing occurs. Aliasing means audible artifacts created when higher frequencies are sampled at an inadequate rate and the result is distortion. The Mainframe's sample rate range is wide enough to take you from sounds that are quite pristine to sounds that are unrecognizable when compared to the input signal.
It also provides bit crushing ranging from 24-bit to 1-bit. What does that mean? Bit crushing is bit depth reduction. Back to our CD example. CDs used a 16-bit bit depth meaning that each of its samples was represented by 16-bits of information. Higher bit depths can accurately represent a greater dynamic range while bit crushing increases the number of sampling errors and creatively degrades the sound to bring us back to those nasty "old school" sounds we love.
The Mainframe's selectable High/Low/Band-Pass filter lets the user shape the artifacts of the bit crushing and sample rate. Another very cool feature is its Sample Rate Tuning Mode where the pedal analyzes your input signal in real-time and sets the sample rate to match the pitch of your signal, or a set interval above your signal. This allows you to set the sample rate to match the key of a song, or it will continually adjust the sample rate based on what you play!"
Features
- Sample Rate Reduction ranging from 48kHz to 110Hz
- Bit Depth Reduction ranging from 24-bit to 1-bit
- Selectable High/Low/Band-Pass filter to shape the artifacts of the bit crushing and sample rate reduction
- Sample Rate Tuning Mode allows you to set the sample rate to match the key of a song, or continually adjust the sample rate based on what you play on your instrument
- Programmable preset or expression pedal setting allows you to save your sound or control any combination of the Mainframe's knobs with an external expression pedal
- Secondary knob parameters allow you to fine-tune the Mainframes effect.
- High quality buffered bypass and silent switching
- Comes equipped with an Electro-Harmonix 9.6DC-200mA PSU
Specifications
- Audio input impedance: 2MΩ
- Audio output impedance the OUTPUT jack: 500Ω
- Current draw: 90mA
- Maximum input signal level: 6.25 dBu (4.5V peak-to-peak)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Quality and cuteness
Color: Brown
I loved this so much I must order one for my self it’s so darn cute. Thank you
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Reviewed in the United States on May 28, 2026
★★★★★ 1
Scam
Color: Brown+Blue, Color: Brown+Blue
Zero stars! What a disgrace. I waited weeks due to the delivery date changing after I placed the order. Then the shipping went up and cost more than the toy. It lasted 5 mins after opening, and it's head fell off. It was not even sewn on. So much for indestructible!!! Then when I returned, they sent a auto comment asking if I would keep it and take a 50% refund. No freaking way!! I'm so irritated right now.
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Reviewed in the United States on May 7, 2026
★★★★★ 1
This is not even chew resistant!!
Color: Brown
If there was an option for ZERO stars that would be this. Within 5 minutes my little 11 pound Havanese had all the ears off, then out came the stuffing. He had the little dog, and a green duck. I had to take the duck away to sew it….then he still had studding everywhere…and that was the little dog. Throwing stuffing and pieces away….I should have put these right back in the bags they came in. In no way ate these even chew “resistant “!!!! Probably just look good onna shelf.👎👎
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Reviewed in the United States on April 10, 2026
★★★★★ 3
Not quite "indestructible"
Color: Green+Brown
These toys are so cute! But, they are NOT for aggressive chewers! 15 minutes and they were ruined. But for kinder chewers...they are adorable.
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Reviewed in the United States on April 15, 2026
★★★★★ 2
Easily Destructed
Color: Green+Orange
My dog destroyed it within a couple of days. The “rope” turned into strings which is dangerous if eaten
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Reviewed in the United States on May 31, 2026