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Randall USA RM4 MTS Guitar Rack Preamp Chassis

Guitar preamp chassis
Unfortunately, the Randall USA MTS system has been discontinued for business policy reasons (incl. patent royalties) and replaced by new non-modular products. This is the last opportunity to purchase a new RM4 mainframe. MTS modules can also be purchased here: We have most of them still on offer, but meanwhile, in very low quantities. Please make sure to order soon if interested!
Randall USA RM4 MTS Guitar Rack Preamp Chassis
Our price:
MSRP*: €950.81

You save: €51.81 (5%)

incl. VAT
plus shipping costs
Product number: 941025
Item condition: new
closeBrand new, in original box, with full warranty.

Product description

This 4-channel preamp gives all the flexibility of any digital modeling amp, but does it with all-tube circuitry, based on the original circuit specifications. The RM4 allows you to hot swap, and customize any combination of authentic tube tones of the MTS module range.

- Four independent channels (with your choice of vintage to modern voiced preamps)
- Parallel effects loops with front panel mixcontrol
- Series effects loop
- MIDI in / thru
- Pre and post loop outputs
- Two 12AX7‘s buffer the effects loop
- Four button MIDI selectable footswitch
- Front & rear panel inputs

MTS modules are not included!

Item condition

Brand new, in original box, with full warranty. 

Additional information

Name Randall USA RM4 MTS Guitar Rack Preamp Chassis
Brand Randall
Model MTS
Product group(s) -
Category Guitar preamp chassis
MPN RM4-chassis
Specials No


Germany0.00 EUR
European Union19.00 EUR
Switzerland29.00 EUR
Norway29.00 EUR
other countriesupon request

Order processing time
We ship worldwide on daily basis, with DHL, DPD, and UPS. All in-stock items are usually shipped within 24h upon receipt of payment, mostly on the same working day. Of course, all orders are checked by our qualified personnel and professionally packaged for shipping. Express delivery options are available upon request.

A transport insurance cover up to the full value of the purchased item(s) is already included, at no extra charge.

COD (cash on delivery)
5.00 € COD fee for shipping within Germany. Unfortunately, we currently don't ship COD to addresses outside of Germany.

Personal purchase at our store
Of course, you are absolutely welcome to personally visit our shop premises in Munich to check, test, compare, purchase and take home your items right away, without any waiting, stress or pressure, and with a proper professional advice from our product experts. Please feel free to contact us for your individual time appointment, or simply visit us during our business hours!

Shipping outside the EU
Shipping costs to most EU destinations, Switzerland and Norway are included in the overview on the left. Selling and shipping to any countries not mentioned in this overview is subject to prior inquiry and receipt of our shipping quotation. Please also note that not all orders from all countries can be automatically processed through our website at this time; such orders must be handled on individual basis. If you are outside the EU, please make sure to contact us first, for necessary details on the ordering procedure, shipping and payment. Please make sure to provide us your full address for a correct calculation of the shipping expenses.



We stand behind the flawless quality and function of our products, and provide you an extended warranty of 3 years for regular brand new items, as well as 2 years for b-stock, demo or retoure items and 1 year for second hand equipment.

Individual offer request

Have you seen this product anywhere for less? Please let us know, we will try to provide you similar or even better conditions. For your individual offer, please submit the following information:


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