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Focusrite ISA One Heritage mic pre with independent DI, variable impedance selector and independent headphone amp | ISA Preamp, Lundahl LL1538 Transformer, Switchable Impedance, Front-Panel DI, Headphone Output, Insert, VU Meter - style: ISA One

Focusrite ISA One Heritage mic pre with independent DI, variable impedance selector and independent headphone amp | ISA Preamp, Lundahl LL1538 Transformer, Switchable Impedance, Front-Panel DI, Headphone Output, Insert, VU Meter - style: ISA One

$1,161.98 USD
$1,161.98 USD
Sale Sold out
Taxes included.

About this item

  • ISA series transformer-based preamplifier: Encased in a rugged and portable chassis, ISA One offers the classic Focusrite microphone preamplifier in a highly cost-effective and flexible package
  • Flexible, independent DI channel: ISA One is ideal for both engineers and demanding performers alike, featuring independent gain control, an output for routing to an amp, an independent XLR output on the rear and routing to the optional A-D converter
  • Switchable impedance: Choose one of four carefully selected input impedances, including the original ISA110 setting, to suit any microphone
  • Headphone output with volume control: ISA One can feed either a sum of the two inputs to the headphones output, or an external stereo cue mix (such as a stereo feed from an interface) via two TRS jack inputs on the rear of the unit
  • Dedicated insert point: Allows you to place extra processing between the preamplifier or DI and the optional converter, such as an EQ or compressor
  • Optional stereo 192kHz A-D converter: You can choose to upgrade your unit with an optional digital card that delivers the best A-D performance in its class, with a dynamic range of 118dB
  • Lundahl LL1538 Input Transformer: The original mic transformer used in the original Red modules helps to provide the unique sound and performance of this ground-breaking design
  • Backlit VU meter with variable calibration: ISA One has a moving coil VU meter with variable calibration to suit analogue and digital recording media, alongside two six-LED peak meters; inputs can be metered either pre- or post-insert

Overview

  • Brand: Focusrite
  • Number of Pins: 18
  • Interface Type: Standalone Microphone Preamp
  • Number of Channels: 2
  • Material: Stainless Steel

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Olivia Bennett — Seattle, Washington

    Listenora has a practical selection of audio accessories that made it easy to find what I needed. The product information was clear, ordering was simple, and everything fit naturally into my everyday listening setup.

  • ⭐⭐⭐⭐⭐

    Ethan Parker — Austin, Texas

    I liked how easy it was to browse the different audio categories. The accessories I ordered were straightforward to use and helped make my desk setup feel cleaner, more organized, and more convenient.

  • ⭐⭐⭐⭐⭐

    Samantha Reed — Denver, Colorado

    The item arrived as expected and worked well with my setup. I especially appreciated the clear product details, which helped me check the connection type and compatibility before placing my order.

  • ⭐⭐⭐⭐⭐

    Michael Turner — Portland, Oregon

    Listenora offers useful audio products without making the shopping process feel complicated. My order was easy to track, the accessories were neatly packaged, and I would consider shopping here again for future audio needs.

FAQ

What types of products does Listenora sell?

Listenora offers everyday audio accessories for work, gaming, travel, fitness, and personal listening. Our selection includes headphones, earbuds, microphones, speakers, audio cables, adapters, stands, protective cases, replacement parts, and cleaning accessories.

How can I check whether a product is compatible with my device?

Please review the connector type, supported devices, dimensions, operating-system requirements, and compatibility information shown on the product page. For additional assistance, contact us with the exact brand and model number of your device before ordering.

How much does shipping cost?

Unless a different rate or promotion is displayed during checkout, we charge a flat shipping fee of $6.90 per order. International duties, taxes, customs charges, and other third-party fees are not included unless expressly stated.

How long does order processing take?

Orders are generally processed within 1–3 business days after payment is confirmed. Processing may take up to 5 business days during holidays, promotional events, high-demand periods, or inventory reviews.

How long will delivery take?

Estimated delivery is generally 5–10 business days within the United States and 10–20 business days for eligible international destinations after shipment. Delivery times are estimates and may be affected by carriers, customs, weather, address issues, or other circumstances.

How can I track my order?

Once your order has shipped, tracking information will generally be sent to the email address used during checkout. Tracking may take 2–5 business days after dispatch to display its first meaningful update.

Can I change or cancel my order?

Please contact us as soon as possible after placing your order. We will make reasonable efforts to assist, but changes or cancellations cannot be guaranteed once processing, fulfillment, or shipment has started.

What is your return policy?

Eligible unused products may generally be returned within 30 days after confirmed delivery. Products must meet our return conditions and receive authorization before being shipped back. Certain opened or used hygiene-sensitive audio products may not qualify for change-of-mind returns.

What should I do if my item arrives damaged, defective, or incorrect?

Contact us promptly with your order number, a description of the issue, and clear photographs or videos of the product, packaging, and shipping label. Please retain all original packaging and accessories until the issue has been reviewed.

How can I contact Listenora customer support?

Email us at gtrefasnhuim@gmail.com. Please include your full name, order number, and a clear description of your question. Most inquiries are reviewed within 1–3 business days.

Made for Everyday Listening

At Listenora, we believe audio accessories should do more than simply connect a device. They should make everyday listening feel easier, more comfortable, and better organized.

Every routine has different audio needs. Some moments call for clear communication during work or gaming, while others require compact, dependable accessories for travel, exercise, or relaxed listening. That is why Listenora focuses on practical audio products designed to support real everyday situations without making your setup feel complicated.

Our collection is selected with usability in mind — from headphones, earbuds, microphones, and speakers to cables, adapters, stands, protective cases, replacement parts, and cleaning accessories. Each product is chosen to help improve comfort, connectivity, organization, and convenience across a wide range of audio setups.

Listenora is made for people who value useful products, simple connections, and a more enjoyable listening experience. Whether you are preparing for a meeting, settling into a gaming session, heading out for a workout, or organizing your audio equipment, we are here to help make everyday sound work better for you.

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