Crack OTL Headphone Amplifier Kit


This week only, order a Crack amp kit for $279 and you can add the Speedball upgrade kit for just $20! (regularly $115) Offer ends Sunday October 26th.


SKU: 004.

This is what we call a Skill Level 1 kit, perfect for first time builders. The circuit is so simple you can build it in an evening or two. A simple circuit also means a low parts count, which keeps the price low, too. Crack is an output transformerless amp designed for higher impedance headphones like the Sennheiser, AKG and Beyer designs as well as our own dedicated Crackheadphones. See specs tab for in depth info and video. You also might want to check out the Speedball Upgrade for this amp.

DISCOUNTS: When you buy 1 > Regular Price: $279.00USD • When you buy 2-9 > Sale Price: $251.10USD • Save: $27.90USD (10%)! • When you buy 10 or more > Sale Price: $237.15USD • Save: $41.85USD (15%)!

This kit is in very high demand and we are working a quickly as possible to fill orders. The current lead time is around three to four weeks. Your pre-order will be charged the day the kit is ordered. We do this to allow cash in advance payment to our vendors to keep the price you pay as low as possible. We understand that sometimes other things come up that are more important, and that folks may need to cancel a kit order. No problem, but please bear in mind that our merchant services ding us 3% even if you cancel your order. Thus we can only refund 97% of the purchase price on kit orders.

Additional Information

Weight 7 lbs
Dimensions 12 x 10 x 6 in


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