Presonus Quantum ES4 4x4 USB-C Audio Interface with 2xStudio Headphones Bundle
Product highlights
Product highlights
In the box
In the box
Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
PreSonus Quantum ES4 4x4 USB-C Audio Interface for Microphones with MAX-HD Mic Preamps
Knox Gear TX-100 Closed-Back Studio Monitor Headphones
Introduce your ears to a world of crystal-clear, expansive, high-fidelity audio with the TX-100 Closed-Back Studio Monitor Headphones from Knox Gear. These adjustable over-ear headphones are engineered for exceptional comfort, superior sound quality, and convenient portability anywhere you go. These headphones include a 1/4-inch adapter and feature an extra-long 10-foot cord for versatility.
Noise Blocking Closed-Back Design
Experience a crystal-clear high-fidelity audio soundscape with these closed-back headphones from Knox Gear. The TX-100s isolate your ears from unwanted external noise, preserving your bubble (and maybe your sanity) in loud environments. Closed-back headphones are the ideal listening companion when you want to isolate the most amount of external noise possible while keeping your focus dedicated solely to your audio of choice.
Powerful Bass with Clear Mids and Highs
Knox Gear headphones are engineered for maximum dynamic range and superior sound quality. 50 mm speaker unit drivers are coupled with neodymium magnets to deliver deep, rich bass, clear treble and vocals, and crisp high tones.
For Recording, Music Production, Gaming
No matter what your passion is, Knox Gear is the gear for your ears. Trusted by both audiophiles and professionals in the industry. The TX-100s are the perfect headphones for studio recording, production, gaming, and pure musical enjoyment.
Creating Better Soundscapes
Powerful 50mm drivers and neodymium magnets combine to enhance the full spectrum of your audio experience – from deep, lush basses and clear, wide mids to crisp, artifact-free high-ranges.
Comfort Makes the Difference
You won’t perform at your best or properly enjoy your music with hard, uncomfortable over-ears or earbuds. That’s why we’ve designed the TX-100 with super soft, ear-pampering ear pads and an elastic headband that adjusts to fit comfortably over any hairstyle, hat, or head shape. Whether you need headphones for all-day head-grooving, long hours in the studio, or a marathon gaming session, Knox Gear is here.
Pig Hog - PH10R - 1/4-in - 1/4-in Right Angle 8mm Instrument Cable (10 ft., Black)
Pig Hog cables are precisely overbuilt to stand up to the most grueling tour conditions imaginable and are designed to provide the highest quality performance with outstanding value. The proprietary conductor technology and robust shielding is designed to ensure your sound is crystal clear, without noise or interference, every time. Each cable is hand tested before shipment, and we back up our quality with a lifetime warranty so you can be sure your Pig Hog Cables will be an integral part of your rig for years to come.
Hosa HSX-010 Pro Balanced Interconnect Cable (10 Feet)
The Hosa HSX-010 Pro Balanced Interconnect Cable is designed to connect gear with balanced phone outputs to gear with XLR inputs. It is ideal for use in touring and other live-sound applications. It features REAN connectors for superior signal transfer and rugged durability. It is also equipped with 24 AWG Oxygen-Free Copper (OFC) conductors for enhanced signal clarity and also has a 90% OFC spiral shield for a higher signal-to-noise ratio.
Knox Gear 25Ft XLR Cable Male to XLR Female Microphone Cable
Knox Gear 25FT XLR Male - XLR Female Microphone Cable, is professionally designed to prevent external interference and ensure signals travel rapidly and smoothly with minimum distortion, delay, or loss. These cables feature two 20-gauge CCAM conductors, which are twisted pair with cotton yarn fillers, conductive PVC shield with 100% coverage, and CCAM spiral shielding with 90% coverage.
Connectivity
| Sync I/O | None |
| Input/Output | 4x4 |
Performance
| Gain Adjustment | Yes |
| Mic Input | 1 x 3-Pin XLR |
General
| High-Pass Filter | No |
| Number of Mic Preamps | 4 |
- 1/8 inch (3.5mm) gold-plated
- 1/4 inch (6.35mm) gold-plated (adapter included)
PreSonus Quantum ES4 4x4 USB-C Audio Interface for Microphones with MAX-HD Mic Preamps
Knox Gear TX-100 Closed-Back Studio Monitor Headphones
Knox Gear TX-100 Closed-Back Studio Monitor Headphones
| Type | Over-ear |
| Driver size | 50mm |
| Connectors | |
| Headband | Elastic |
| Cord Length | 10 feet |
| Color | Black |
Pig Hog - PH10R - 1/4 - 1/4 Inch Right Angle 8mm Instrument Cable
| Length | 10 feet |
| Color | Black |
| Material | PVC outer covering |
Hosa HSX-010 Pro Balanced Interconnect Cable
| Connectors | REAN 1/4 in TRS to XLR3M |
| Conductors | 24 AWG x 2 OFC |
| Shield | 90% OFC Spiral |
| Length | 10 feet |
Knox Gear 25-Feet XLR Male to XLR Female Microphone Cable
| Wire gauge | 20 x 2 |
| Conductor material | CCAM |
| Shielding | 90% |
| Shielding material | CCAM |
| Jacket OD (mm) | 6.5 |
| Jacket material | PVC |
| Length | 25 ft. |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.






