Sequential Fourm

Name: Sequential Fourm
Brand: Sequential
SKU: MI-02664
Price: 37900 THB
Availability: InStock

SKU: MI-02664

฿ 37,900

or pay just ฿ 3,790 per month at 0% interest

Choose your installment plan on the payment page during checkout!

Bank	Interest %	Period	Monthly
Bangkok Bank Cards (BBL)	0%	Up to 10 months	฿ 3,790
KBank Cards (Kasikorn Thai)	0%	Up to 10 months	฿ 3,790
Krungsri Cards (BAY)	0%	Up to 10 months	฿ 3,790
Krungsri First Choice Cards (KFC)	0%	Up to 10 months	฿ 3,790
Krung Thai Cards (KTC)	0%	Up to 10 months	฿ 3,790
SCB Cards (Siam Commercial/CardX)	0%	Up to 10 months	฿ 3,790
TTB Cards	0%	Up to 10 months	฿ 3,790
UOB Cards	0%	Up to 10 months	฿ 3,790

In stock

Delivery information

ProPlugin delivers your parcels through Thailand Post. All parcels are shipped through Thailand Post's EMS Service to ensure fast delivery options!

Delivery within Thailand
Bangkok metropolitan area	Delivery within 1 business day
Chiang Mai province Chiang Rai province Mae Hong Son province Wiang Haeng district Wiang Kaen district	Delivery within 2 business days
Remote areas Islands	Delivery within 3 business days
All other destinations within Thailand	Delivery within 1 business day

*Shipping times apply if ordered before 12.00 noon (add 1 business day if ordered after 12.00 noon)

Returns policy

Your satisfaction is important to us. If you've changed your mind about your order, you may request a return within 15 days of receiving your order! If you wish to initiate a return, please contact our customer support team.

Please note that the product must be unopened/sealed, and some exclusions apply, for example on software. Please carefully read our full returns & refund policy.

Warranty coverage

Warranty included (1 year)

Most of our products come with a standard 1-year warranty covering manufacturer defects and electronic malfunctions under normal usage.

If a product is under warranty, we provide free repairs at our repairs centre for music equipment in Bangkok. If the product broke within 15 days after your purchase, we'll provide you with a brand new product.

If you wish to initiate a warranty claim, please contact our customer support team.

Additionally, you read our full warranty policy.

Payment & installments

Orders from 3000 THB are eligible for payment in up to 10 installments.

Installments are currently only supported for customers that use a Thai-issued creditcard from select Thai banks.

You can select your preferred installment option during your payment.

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Fourm is a compact analog synthesizer that invites you to play, shape, and perform with unprecedented expression. With its legendary Sequential tone, hands-on modulation, and uniquely responsive Tactive™ keybed, Fourm is a creative partner helping to bring your musical ideas to life.

Key Highlights

Voices: 4-voice polyphonic analog engine with unison and mono modes.

Oscillators: Two voltage-controlled oscillators (VCOs) based on the Prophet-5 Rev 2 design with simultaneous waveform selection and hard sync.

Filter: Classic 4-pole resonant low-pass filter featuring bass compensation.

Modulation: Pro-One inspired top-panel modulation matrix and dual ADSR envelopes.

Control: 37-note Tactive slim-key keybed with velocity and polyphonic aftertouch.

100% Analog

Fourm delivers four genuine voices of Sequential analog sound, built on the legendary Prophet-5 voice architecture—right down to its characteristic envelope response curves. With dual oscillators offering simultaneous wave selection and a classic 4-pole low-pass filter with bass compensation, Fourm captures the warmth and punch that shaped a generation—and takes it to the next level.

2 analog oscillators

Fourm’s analog voice path is built around a modern oscillator chip inspired by the design used in the original Prophet-5 Rev 2. It delivers the same rich, musical tone as its vintage predecessor, now enhanced by the benefits of contemporary engineering — improved stability, reliability, and consistency. It’s the perfect foundation for Fourm’s 100% analog sound.

80s Poly

Synth Strings

Runner Bass

Monster Uni

Super Sync

Eeee Peee

Sawyer Mod

Wet Rez

Br0 Presh Bazr

Body Mod

Angry Press Kick

Filter FM

4-pole low-pass filter

Fourm’s analog 4-pole lowpass filter chip is based on a classic design known for its rich, organic tone and musical resonance. The modern implementation faithfully preserves that sonic character while adding bass compensation. Now you can crank the resonance without sacrificing low-end power — keeping your sound full, bold, and unmistakably analog.