GET IT TOMORROW! Available in-store today or order before 2pm to receive next working day.
2 in stock (can be backordered)
Kastle is a mini modular synthesizer with a headphone output, 2 in/out ports for interfacing other gear and it runs on just 3 AA batteries. It is DIY friendly and ideal for beginners in modular synthesis, but it will add some quite unique functionality to any modular synthesizer system. It delivers the fun of modular synthesis at a low cost and fits into your pocket so you can play it everywhere!
It has a unique digital lo-fi sound and it can be melodic as well as very noisy and drony, soft or harsh. It is designed to be fun on its own but it is most powerful when combined with other modular gear.
Kastle is an open source DIY project which runs on two Attiny 85 chips that can be reprogrammed with an Arduino (google: “programming Attiny 85 with Arduino”). One chip is dedicated to sound generation while the other one handles modulation. Several firmwares for the Attiny chips are available thru gitHub.
The v1.5 version combines a complex oscillator and LFO with stepped waveform generator.
The oscillator section has 3 sound parameters: PITCH, TIMBRE and WAVESHAPE – all under voltage control and with 6 different synthesis modes. It has a main output and a secondary waveform output. Both can be used independently or in combination. The 3 synthesis modes available thru the main output are: phase modulation, noise mode and track & hold modulation.There are 3 more modes on the secondary OSC output: phase distortion, tonal noise mode and formant synthesis. Each mode utilizes one or two oscillators. The PITCH parameter controls the main oscillator, the TIMBRE sets the PITCH of the modulating oscillator and the WAVESHAPE depends on the synthesis mode.
The voltage controllable LFO has a triangle and square output and a reset input. The stepped waveform generator is inspired by the Rungler circuit by Rob Hordijk. It can produce 8 different voltages either in random order or in 8 or 16 step looping patterns depending on how the BIT IN is patched.
All In-stock Items will be shipped within 1 working day of your order. All in stock orders received before 2pm will be processed same day and shipped for delivery the next working day .
All orders will normally be shipped via DPD Recorded and Tracked Delivery.
International Orders will be shipped via standard tracked Airmail usually by DPD or UPS.
Elevator Sound is not responsible for any international shipping delays, customs charges or taxes along with any lost, stolen or damaged items.
Customers must notify us at firstname.lastname@example.org of any defects or problems with the product within 48 hours of receiving.
All returns/exchanges will be granted no later than 7 days from when your shipment is received.
All items purchased must be in original condition with original packaging. The customer is responsible for all shipping charges.
All returns will be refunded to the account payment was received from.
No refund allowed for any products after 7 days.
No refund/exchange on sales items.
please see our Terms and Conditions for a full rundown of Elevator Sound clauses.
on U.K orders
Price Match Guarantee
We want to bring you the most competitive prices available out there on all the products we sell. However, we understand from time to time you may find a lower price out there.
Our Price Match ensures that if you find an in-stock lower price than what we are advertising on an identical product, we will try to beat, or at least match the price from any other Authorized UK reseller.