FOCUSRITE ISA 428 4-Channel Preamp
Estimated delivery in Italy between 9 and 13 July
4-Channel Preamplifier
The FOCUSRITE ISA 428 is a 4-channel preamplifier based on the design of the legendary ISA110, sharing its characteristic Lundahl LL1538 input transformer.
The FOCUSRITE ISA 428 features 4 XLR microphone inputs with selectable input impedance, 4 TRS DI instrument inputs that make the ISA428 Mk II ideal for overdubbing in the control room without the need for a DI box, and 4 switchable line/insert inputs on each channel allowing for routing through an external signal processor.
Specifications
- 4 ISA Series Transformer-based Preamps
- Selectable Impedance
- 4 front panel instrument inputs
- Dedicated analog insert points
- Switchable insert points on every channel
- Precise LED metering for every channel
- Variable High-pass filter
- Phantom power on every channel
- +20dB Trim control
- Phase reverse buttons
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About Focusrite
Focusrite is a leading British brand in the field of audio interfaces, microphone preamps, and professional digital recording solutions. The renowned Scarlett series has become the world's best-selling USB audio interface, appreciated by musicians, producers, podcasters, and home studios for the quality of its preamps, ease of use, and reliability. The Focusrite range also includes the Clarett and Red series for advanced professional applications, as well as Dante audio networking solutions through the RedNet brand. Each product is designed to deliver crystal-clear recordings and high-level audio conversion. On musicdelivery.net, you can purchase Focusrite audio interfaces and preamps for every music production and recording need.
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Shipments
Shipments
We ship throughout Italy and the European Union via selected express courier partners. All orders travel in special reinforced packaging and are covered by 100% included insurance to fully protect the value and integrity of professional equipment during transport.
Returns and refunds
Returns and refunds
You can request a return within 14 days of receiving the order. As these are professional hardware and devices, items must be returned completely intact, unused, unactivated, and sealed in their original packaging, complete with all accessories and manuals.
Frequently Asked Questions
Can't find the answer you're looking for? Our team of specialists is at your disposal for configurations or technical questions.
What are your shipping and delivery times?
What are your shipping and delivery times?
Orders are processed within 24/48 business hours. Delivery is made by insured express courier to guarantee maximum protection and safety even for the most delicate and expensive equipment.
Are the products covered by an official warranty?
Are the products covered by an official warranty?
Yes, all products are 100% original and covered by the official 24-month manufacturer's warranty. In addition, our technical department offers free after-sales support to assist you with the initial setup of your system.
How does the right of withdrawal work?
How does the right of withdrawal work?
If the hardware does not meet your expectations, you can return it within 14 days of receipt. The product must be returned intact, unused, and sealed in its original packaging, complete with all accessories and manuals.
What does it mean if a product is "Available on order"?
What does it mean if a product is "Available on order"?
Some complex professional audio systems or lighting equipment are ordered directly from official distributors based on customer requests. You can proceed with the purchase as normal and our team will immediately inform you of the exact arrival times at our warehouses.

