Marshall-Style Amp Chassis w/ Optional IEC Knockout

Blank aluminum chassis in the vintage JTM45 / Plexi style. Made to order to your size and specs. Use to build your own British-inspired or custom build. Easily punch or drill to layout your tubes and components exactly where you want them. Optional IEC and PT knockouts can be precisely located to suit your need.

Start your order by messaging us with your desired options and specs. You may copy, paste and modify the sample order below to get started. Price varies with dimensions and options. Once we have your specs ironed out we'll send an offer.

Basic Specs:
• Specify L x W x D 
• Outward flanges 
• Heavy duty .08" aluminum
• Protective PVC masking
• Handmade in the USA

Options:
• Standard IEC knockout (+$5)
• Transformer knockouts (+$10)
• 10-32 threaded inserts for cabinet mounting (+$10)

Forming Limitations:
• Maximum Length: ~21"
• Maximum Depth: 3"

Sample Order (refer to example drawing):

17.5" x 6.5" x 2.5"
Flanges OUT
Open Side DOWN
Reverse Layout (Inputs on the right)
Non-fused IEC @ 1.75"
18W PT: 2.5" to front, 3" to short side, LL
Add 10-32 mounts

Adding Knockouts:

• To properly locate knockouts we will need you to specify the chassis mounting orientation and the intended control layout. Reversing the orientation or layout will mirror the location of your knockouts on the chassis. Typical mounting orientations are open side up, open side down or vertical (tweed combo style). The control layout must be specified as either standard or reverse. A standard layout will have the input jack(s) on the left in the front as viewed in the final mounted assembly. A reverse layout will have the input jack(s) on the right like many vintage Marshalls. For clarity - your chassis control panel will remain undrilled / blank - we just need to know the intended layout to ensure your IEC and transformer KOs get located properly.

• When adding an IEC inlet please specify the desired location from chassis edge to the center of the knockout. Unless otherwise specified the IEC will be centered by height on the chassis rear panel. We have setups for both standard and fused IEC types. We can also offer a knockout with flatted sides sized to fit a Heyco 18-3 cord grip when a fixed power entry is desired.

• We are setup to produce knockouts for most vintage-style power transformers from 5W up to 100W. You will need to specify your Tx's mounting hole centers to ensure we have a setup appropriate for your size. Please specify your desired transformer location as measured from the chassis edges to the center of the knockout. Remember to also specify your desired mounting orientation: long to long (LL) or long to short (LS). LL means that the long dimension of the transformer will run parallel to the long dimension of the chassis.

Mounting Hardware:

• When adding mounting hardware a custom drill guide template will be included. This template is intended to simplify the process of transferring the chassis mounting holes to your cabinet to ensure precise alignment. When ordering multiple identical chassis at the same time all mounting hardware will be installed using a single template helping to ensure that your chassis and cabinets will fit interchangeably. 10-32 rivet nuts are our standard mounting hardware option, 8-32 rivet nuts are available by request.

Feel free to inquire about a custom laser engraved faceplate.

Current estimated lead time:  2-3 Weeks