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Everything In Music - Since 1958
Everything In Music - Since 1958

NUX B-7PSM 5.8 GHz Wireless In-Ear Monitor System

by NU-X
Original price $239.00
Original price $239.00 - Original price $239.00
Original price $239.00
Current price $199.00
$199.00 - $199.00
Current price $199.00
♫ In stock
About Inventory Status

Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

Precision Control, Boundless Creativity - The NUX B-7PSM 5.8 GHz Wireless In-Ear Monitor System

The NUX B-7PSM is a wireless personal in-ear monitor system with automatic RF environment scan, 5.8GHz interference-free broadcasting frequency, and 24-bit / 40 kHz high-quality STEREO audio transmitting. From any position. On any stage. Hear every note in detail with NUX B-7PSM in-ear monitoring system.

It quickly finds a clean wireless channel and automatically assigns it. The B-7PSM offers a super low latency of less than 5.5ms and has an operation range of 100 feet (30m) when unobstructed between the Receiver (RX) and Transmitter (TX). (The operation range is around 32 feet (10m) when obstructed). It’s a super light-weight wireless, mini-compact system designed to clip on & go. The TX features a 1/8” TRS plug (you can use the included adaptor to convert to 1/4”), broadcaster-grade audio via 5.8GHz digital transmission to the compact RX. The RX’s clip design can easily fit to your shirt, belt, or guitar strap. And, with our newest automatic frequency hopping technology, B-7PSM is reliable and stable while you perform on stage.

Note: When coupling multiple B-7PSM systems, please turn on 1 set first, pair it, and then turn on the other sets sequentially.

Note: For best results the TX should be at least 1 meter above the ground, 2 meters away from Wi-Fi routers and wall or metal surfaces to minimize reflections.

Easy To Use

The user-friendly matching system makes it easy to use, just turn ON both wireless units (TX & RX), then it will be paired within a couple of seconds. Each wireless set has a unique pairing algorithm, it automatically detects each other and configures their own IDs. The signal never interferes with any other wireless including the WiFi* signal.

*Recommended: Please stay 2 meters (6 feet) away from the Wifi router for the best results.

A Loud Stereo Phone Preamp

Plug in the TX to a live or personal mixer and turn on the TX (LED indicator will show GREEN.) Then connect your in-ear buds with the RX, turn on the RX to pair with the TX. The LED indicator will be solid GREEN. Now it’s ready to go.

Caution: Do not put the in-ear buds in your ears before you start to adjust the volume, it may hurt your ears if the volume is too loud.

You can adjust the RX volume in 0.5db increments with the + and – buttons. The maximum volume is 0dB, and the minimum is -64dB. Holding down the + or – button can increase or decrease the volume quickly. The B-7PSM offers STEREO audio transmission, so it’s perfect to work with professional personal mixers to pan the tracks as you want on stage during rehearsals and live performances. The B-7PSM features premium sound quality with a 92dBA dynamic range and 20~19K Hz frequency response.

Note: Short press the power button of the RX to return to the default volume setting. It may be too loud if the in-ear buds are very sensitive. Please turn down the mixer’s volume and increase it carefully.

Note: We recommend you use headphones or in-ear buds with a 16~32 Ω impedance for the best experience.

Note: B-7PSM is designed for band rehearsals and live performances, prioritizing the best possible STEREO experience. You'll enjoy the product and the experience it provides, while it may not be suitable for personal silent practice.

While the B-7PSM is a STEREO IEM solution, you can use it in a mono environment as well if needed. Simply use a 1/4" MONO to 1/8" STEREO adapter (to split the mono signal from a 1/4" Output into both channels of B-7PSM's 1/8" Stereo Input), then you can get a mono signal that can be heard in both the left and right channels.

Caution: Please consult the seller of your adaptor before making the connection, in order to avoid any device damage.


  • Output Volume Adjustment: -64dB~0dB (0.5dB step)
  • Operating Frequency Band: 5.8 GHz
  • Operation Length: < 100 feet (30m) outdoor unobstructed, < 33 feet (10m) outdoor with obstructions
  • Sampling Rate: 24bit / 40 kHz
  • Frequency Response: 20~19kHz
  • Latency: < 5.5ms
  • Dynamic Range: 92 dB
  • THD+ Noise: <0.6% 1kHz
  • Built-in Battery Capacity (TX & RX): 450mAh / 3.7V
  • Battery Running Time: > 4 hours
  • Battery Charging Time: around 1.5 hours
  • Power Consumption: TX <90mA,RX < 45mA
  • TX Impedance: 3.5kΩ
  • Maximum Input Level: 7.6Vpp (8.6dBV or 2.7Vrms)
  • RX Suggestion Phone Impedance: 16~32Ω
  • Maximum Output Power: 57 mWrms (RLOAD =16Ω, 1 kHz).

Manufacturer: NU-X
Model: B-7PSM IN EAR
SKU: I732306-N-7-WHXB
UPC: 885947104840

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Maryland, Virginia, and Washington DC's legendary music shop. Family-owned and operated since 1958. Buy gear the way it was meant to be bought, from a store that's been there through it all and has the vibe to prove it. We're staffed with musicians and industry experts, people that live and breathe music gear. Our mission is to help you find the right gear for your project, that thing that will bring you the most joy out of what you do. We're an authorized dealer for almost every brand, we stock items the other stores don't, so you can try before you buy. Stop by our Wheaton, MD showroom and see for yourself.

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