Electro Harmonix USED OP-AMP Big Muff
Product Condition
| Brand New | Unused, as sold. |
|---|---|
| Mint | Like new, no flaws. |
| Excellent | Barely used, very minor wear. |
| Very Good | Light wear, fully functional. |
| Good | Visible wear, plays fine. |
| Fair | Heavy wear, still playable. |
No se ha podido cargar la disponibilidad de recogida
Descripción
Descripción
With the original Op-Amp Big Muff from the late 1970s selling for exorbitant prices, Mike Matthews decided to reissue this classic pedal at a price that more players could afford. The new Op-Amp Big Muff's circuitry faithfully replicates that of the original, also known as the IC or V4 Big Muff, and adds some practical features like a compact die-cast chassis and true bypass.
The Op-Amp Big Muff was first used by the brilliant Billy Corgan on the Smashing Pumpkins' 1993 album "Siamese Dream," which put it in the spotlight. After filming a demo video of the unit, Billy Corgan had this to say about the reissue model: "The magic's still in the box. I can still get what I'm looking for." Mike Matthews
To create its signature sound, this pedal uses an op-amp instead of a transistor as the amplification element, and has three gain stages instead of the traditional four. Kit Rae, a Big Muff collector and historian, describes the sound as follows: "It's a very loud, destructive Big Muff sound, with more distortion. It's perfect for grunge, wall-of-glass distortion, heavy rhythms, and leads."
There is some wear on the exterior, but there is no problem with operation.
Accessories: Box Warranty: No warranty, sold as is
Payment & Security
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Regarding detailed information and contact information to us, please check FAQ.
Please Note
The following information applies to international orders.
■ Condition
Items with “USED” in the product name are pre-owned and will be delivered as shown in the photos. Signs of wear may be present. All items are function-tested by our staff and rechecked before dispatch.
■ Stock
Many products are stocked across Ikebe stores in Japan. As a result, shipment may take several days. In-store sales may also cause items to sell out. If an item is unavailable, we will contact you promptly; in that case, the order will be canceled and any payment will be refunded.
■ Shipping
We ship via FedEx. Shipments are fully insured against damage or loss during transit.
- Asia: 10–20 days (estimated)
- North America & Oceania: 20–30 days (estimated)
Shipping costs are calculated based on the delivery address and confirmed at the time of dispatch.
■ Taxes & Duties
Import duties, taxes, and fees are the buyer’s responsibility and are not included in the item price or shipping cost. These fees are typically collected by the carrier upon delivery or at pickup. Please check with your country’s customs office for details before purchasing.
■ Other
We cannot declare a reduced item value or mark purchases as gifts.
* Warranty
Our product warranty is valid only within Japan.
* Voltage
All electrical products are intended for the Japanese market and are designed for 100 V operation.
About us
Founded in 1975, Ikebe Music is one of Japan's largest general music stores.Thanks to its long history and proven track record, it has earned the trust of musicians and music fans not only in Japan but around the world.
Ikebe Music ships not only within Japan, but also overseas.As a well-known retailer of used musical instruments in Japan, we have a wide selection of used and vintage instruments.
We have a wide variety of unusual and rare instruments, so please take a look.Please note that we do not list new products, as our contracts with our suppliers prohibit international shipping.
About our stores
In Japan, we have about 30 stores in Tokyo (Ikebukuro, Shibuya, Akihabara) and Osaka.
We have just opened our flagship store, IKESHIBU (IKEBE SHIBUYA), in Shibuya, Tokyo, which brings together numerous musical instrument specialty stores and serves as a hub for entertainment culture.
Please be sure to stop by if you are visiting Japan.

About Shipping




We carefully pack every item with protective materials to ensure it arrives safely.
The photos above show an example of how we securely pack a bass guitar for shipping.
Regarding handling of used products
All used products sold by Ikebe Musical Instruments Store are inspected, working, and maintained, ensuring their safety and security. We inspect each item individually for defects before shipping.
If there are any missing images, please contact us with your inquiry and let us know the angle and focus you need to better understand the condition of your item before ordering. We will respond after taking photos.
Because these are used items, we strive to provide detailed information about their condition so you can order with confidence.




