} Useful Arts Swarm 4-Channel Solid State Microphone Preamp — Pro Audio Reserve
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Useful Arts Swarm 4-Channel Solid State Microphone Preamp

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$1,999.00
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Description

Useful Arts Swarm 4-Channel Preamp Overview

  Useful Arts Swarm 4-channel solid state microphone preamp

Discrete Gain Cells and Custom CineMag Transformers

The Useful Arts Swarm features discrete transistor gain cell topology on all four channels, delivering sound quality that rivals solid-state preamps costing well over $1000. Each channel is equipped with a custom CineMag input transformer and transformer-coupled output, ensuring the same huge, dimensional sound that made the Hornet preamp a studio favorite.

Unlike the generic preamps found in most audio interfaces, the Swarm has a distinct sonic personality. The discrete transistor design and high-quality transformers on both input and output work together to create a rich, powerful signal path that sits naturally in a mix without requiring extensive processing downstream.

 Useful Arts Swarm Color control variable saturation

Exclusive Color Control for Enhanced Character

The Swarm's Color control puts creative tone shaping at your fingertips on each of the four channels. This exclusive Useful Arts feature enhances and thickens the personality of your microphone or instrument without the need for compression or EQ, adding harmonic richness that helps sources punch through a mix naturally.

Combined with the discrete gain cell topology and transformers, the Color control allows you to dial in everything from clean and transparent to bold and aggressive, giving each channel its own character while maintaining the cohesive sound quality the Swarm is known for. This level of tonal flexibility makes the Swarm ideal for capturing diverse sources in a single session.

 Useful Arts Swarm JFET DI inputs four channels

JFET Direct Inputs on Every Channel

Each of the four channels on the Swarm includes a high-quality JFET direct input, making it easy to track bass, guitar, keyboards, and other instruments alongside microphone sources. The JFET design provides high input impedance and exceptional clarity, preserving the natural tone of your instruments while benefiting from the Swarm's transformers and Color control.

This flexibility makes the Swarm perfect for handling entire sessions — track a drum kit with overheads and spot mics, add a DI'd bass, and capture keyboards or guitar all through a single, cohesive front end. The ability to switch between mic and DI inputs on each channel means you can quickly adapt to different tracking scenarios without repatching.

Highlights

  • Four independent mic/DI channels in a 1U rackmount design
  • Discrete transistor gain cell topology on all channels
  • Custom CineMag input transformers and transformer-coupled outputs
  • Exclusive Color control per channel for variable harmonic enhancement
  • High-quality JFET direct inputs on every channel
  • Switchable phantom power per channel
  • 22 dB pad per channel for high-output sources
  • Phase reverse control per channel
  • High-pass filter per channel
  • Hand-built in the USA
  • Affordable alternative to high-end solid-state preamps

Useful Arts Swarm Specifications

Specification Details
Preamp Type Solid-state, discrete transistor gain cells
Number of Channels 4
Input Transformers Custom CineMag transformers per channel
Outputs Transformer-coupled per channel
Direct Inputs JFET DI per channel
Phantom Power +48V switchable per channel
Input Pad -22 dB switchable per channel
High-Pass Filter Switchable per channel
Phase Reverse Switchable polarity reverse per channel
Color Control Variable harmonic enhancement per channel
Rack Spaces 1U
Construction Hand-built in the USA

What's in the Box

Included Items
Useful Arts Swarm 4-Channel Microphone Preamp
Power Cable
User Documentation
Shipping

Shipping & Returns

  • We deliver all US orders in 3–5 business days
  • Free cancellations
  • Returns accepted within 30 days (unused items)

Order Confirmation

Once your order is placed, you will receive an order confirmation email. This confirms that we have received your order and have pre-authorized your credit card for the purchase. After confirming availability with our suppliers, we will proceed accordingly:

  • If your item is available and ready to ship within 1–2 business days, we will process the charge and arrange for shipment.

  • If your item is on backorder or unavailable, the pre-authorization will be voided and you will be notified by email.

  • Please note: While most items ship out within 1–2 business days, total delivery time is typically 3–5 business days, depending on your location and carrier handling.

Order Shipment

If your item is in stock and your payment has been processed, your order will typically ship within 1–2 business days. Total delivery time is approximately 3–5 business days from the date of order. Once shipped, you will receive tracking information at the email address provided during checkout within 24 hours of dispatch.

If you have not received tracking information within 3–5 business days of placing your order, please contact us at support@proaudioreserve.com.

The Distributor-Direct Advantage

To ensure you receive the most recent hardware revisions and 100% factory-sealed units, Pro Audio Reserve utilizes a Distributor-Direct fulfillment model. Unlike big-box retailers that may ship "floor models" or gear that has been sitting in general-purpose warehouses, your equipment is pulled directly from the primary manufacturer hub, serialized, and dispatched. This process ensures the highest level of quality control for professional-grade recording equipment.

Shipping Policy

We currently offer free shipping within the United States only. If the checkout process on our website allows you to enter a shipping address and complete your order, your location is eligible to receive delivery.

Changing Shipping Address

If you need to change your shipping address after your order has been processed or shipped, we will do our best to accommodate the request. Please note that address changes may result in delivery delays. Any additional costs incurred due to address changes, including carrier fees or rerouting charges will be the responsibility of the customer. No exceptions.

Shipping Times

All shipping times provided are estimates and should not be considered guarantees. Most orders ship out within 1–2 business days from the time payment is processed. However, total delivery time is typically 3–5 business days, depending on your location, carrier performance, and supplier fulfillment timelines.

We work closely with our vendors to ensure timely deliveries, but please note that supply chain disruptions, high-demand periods, or weather events may occasionally cause delays beyond our control.

  • To avoid misunderstandings: The “shipping time” refers to the total time from order placement to final delivery, not just when the item leaves the warehouse.

  • Cancellations: If you choose to cancel your order because it has not arrived within the estimated delivery window, you may be responsible for applicable shipping charges, restocking fees, warehouse handling costs, and other related fees.

  • Chargebacks: Customers who initiate chargebacks due to shipping delays without contacting us first may be held legally responsible for losses. We strongly encourage open communication so we can resolve any delivery concerns directly and efficiently via our Atlanta-based support team.

Delivery Options

  • Threshold Shipping: Your item will be delivered to your front door, porch, garage, or a covered entryway.

 

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at ProAudioReserve.

  • Free Shipping USA wide. 
  • 30 Day Easy Returns. Not happy with your product, we'll take it back noquestions asked.
  • Great Service. We pride ourselves on the best service, anywhere.

Reviews

Customer Reviews

Be the first to write a review
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Description

Useful Arts Swarm 4-Channel Preamp Overview

  Useful Arts Swarm 4-channel solid state microphone preamp

Discrete Gain Cells and Custom CineMag Transformers

The Useful Arts Swarm features discrete transistor gain cell topology on all four channels, delivering sound quality that rivals solid-state preamps costing well over $1000. Each channel is equipped with a custom CineMag input transformer and transformer-coupled output, ensuring the same huge, dimensional sound that made the Hornet preamp a studio favorite.

Unlike the generic preamps found in most audio interfaces, the Swarm has a distinct sonic personality. The discrete transistor design and high-quality transformers on both input and output work together to create a rich, powerful signal path that sits naturally in a mix without requiring extensive processing downstream.

 Useful Arts Swarm Color control variable saturation

Exclusive Color Control for Enhanced Character

The Swarm's Color control puts creative tone shaping at your fingertips on each of the four channels. This exclusive Useful Arts feature enhances and thickens the personality of your microphone or instrument without the need for compression or EQ, adding harmonic richness that helps sources punch through a mix naturally.

Combined with the discrete gain cell topology and transformers, the Color control allows you to dial in everything from clean and transparent to bold and aggressive, giving each channel its own character while maintaining the cohesive sound quality the Swarm is known for. This level of tonal flexibility makes the Swarm ideal for capturing diverse sources in a single session.

 Useful Arts Swarm JFET DI inputs four channels

JFET Direct Inputs on Every Channel

Each of the four channels on the Swarm includes a high-quality JFET direct input, making it easy to track bass, guitar, keyboards, and other instruments alongside microphone sources. The JFET design provides high input impedance and exceptional clarity, preserving the natural tone of your instruments while benefiting from the Swarm's transformers and Color control.

This flexibility makes the Swarm perfect for handling entire sessions — track a drum kit with overheads and spot mics, add a DI'd bass, and capture keyboards or guitar all through a single, cohesive front end. The ability to switch between mic and DI inputs on each channel means you can quickly adapt to different tracking scenarios without repatching.

Highlights

  • Four independent mic/DI channels in a 1U rackmount design
  • Discrete transistor gain cell topology on all channels
  • Custom CineMag input transformers and transformer-coupled outputs
  • Exclusive Color control per channel for variable harmonic enhancement
  • High-quality JFET direct inputs on every channel
  • Switchable phantom power per channel
  • 22 dB pad per channel for high-output sources
  • Phase reverse control per channel
  • High-pass filter per channel
  • Hand-built in the USA
  • Affordable alternative to high-end solid-state preamps

Useful Arts Swarm Specifications

Specification Details
Preamp Type Solid-state, discrete transistor gain cells
Number of Channels 4
Input Transformers Custom CineMag transformers per channel
Outputs Transformer-coupled per channel
Direct Inputs JFET DI per channel
Phantom Power +48V switchable per channel
Input Pad -22 dB switchable per channel
High-Pass Filter Switchable per channel
Phase Reverse Switchable polarity reverse per channel
Color Control Variable harmonic enhancement per channel
Rack Spaces 1U
Construction Hand-built in the USA

What's in the Box

Included Items
Useful Arts Swarm 4-Channel Microphone Preamp
Power Cable
User Documentation
Shipping

Shipping & Returns

  • We deliver all US orders in 3–5 business days
  • Free cancellations
  • Returns accepted within 30 days (unused items)

Order Confirmation

Once your order is placed, you will receive an order confirmation email. This confirms that we have received your order and have pre-authorized your credit card for the purchase. After confirming availability with our suppliers, we will proceed accordingly:

  • If your item is available and ready to ship within 1–2 business days, we will process the charge and arrange for shipment.

  • If your item is on backorder or unavailable, the pre-authorization will be voided and you will be notified by email.

  • Please note: While most items ship out within 1–2 business days, total delivery time is typically 3–5 business days, depending on your location and carrier handling.

Order Shipment

If your item is in stock and your payment has been processed, your order will typically ship within 1–2 business days. Total delivery time is approximately 3–5 business days from the date of order. Once shipped, you will receive tracking information at the email address provided during checkout within 24 hours of dispatch.

If you have not received tracking information within 3–5 business days of placing your order, please contact us at support@proaudioreserve.com.

The Distributor-Direct Advantage

To ensure you receive the most recent hardware revisions and 100% factory-sealed units, Pro Audio Reserve utilizes a Distributor-Direct fulfillment model. Unlike big-box retailers that may ship "floor models" or gear that has been sitting in general-purpose warehouses, your equipment is pulled directly from the primary manufacturer hub, serialized, and dispatched. This process ensures the highest level of quality control for professional-grade recording equipment.

Shipping Policy

We currently offer free shipping within the United States only. If the checkout process on our website allows you to enter a shipping address and complete your order, your location is eligible to receive delivery.

Changing Shipping Address

If you need to change your shipping address after your order has been processed or shipped, we will do our best to accommodate the request. Please note that address changes may result in delivery delays. Any additional costs incurred due to address changes, including carrier fees or rerouting charges will be the responsibility of the customer. No exceptions.

Shipping Times

All shipping times provided are estimates and should not be considered guarantees. Most orders ship out within 1–2 business days from the time payment is processed. However, total delivery time is typically 3–5 business days, depending on your location, carrier performance, and supplier fulfillment timelines.

We work closely with our vendors to ensure timely deliveries, but please note that supply chain disruptions, high-demand periods, or weather events may occasionally cause delays beyond our control.

  • To avoid misunderstandings: The “shipping time” refers to the total time from order placement to final delivery, not just when the item leaves the warehouse.

  • Cancellations: If you choose to cancel your order because it has not arrived within the estimated delivery window, you may be responsible for applicable shipping charges, restocking fees, warehouse handling costs, and other related fees.

  • Chargebacks: Customers who initiate chargebacks due to shipping delays without contacting us first may be held legally responsible for losses. We strongly encourage open communication so we can resolve any delivery concerns directly and efficiently via our Atlanta-based support team.

Delivery Options

  • Threshold Shipping: Your item will be delivered to your front door, porch, garage, or a covered entryway.

 

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at ProAudioReserve.

  • Free Shipping USA wide. 
  • 30 Day Easy Returns. Not happy with your product, we'll take it back noquestions asked.
  • Great Service. We pride ourselves on the best service, anywhere.

Reviews

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)