Share the Mix during Podcast with the On Stage HA4000 4-Channel Headphone Amp

The HA4000 Four-Channel Headphone Amplifier accepts one stereo input and makes the audio available to four separate stereo headphone outputs, each with its own volume control. Up to four people can listen simultaneously to a single audio source and independently adjust their headphone volume. The amp is compact yet powerful and delivers high-quality sound with low noise throughout the full volume spectrum.

• Enables four people to listen simultaneously to a single audio source over headphones
• Each listener can independently adjust their headphone volume
• Allows the listeners to hear the mix during recording or broadcast

SPECIFICATIONS

• Applications: Recording, audio playback
• Max Output Level: +22dB
• Signal to Noise Ratio : greater than 98dB
• Input Connector: 1/4" TRS Stereo
• Output Connector: 1/4" TRS Stereo
• Input Impedance: 1000 KO (unbalanced)
• Output Impedance: Minimum 10 O each channel
• Max Gain: 20dB per channel
• Power Supply: 12V - 18V DC adapter (included)
• Product Dimensions (L x W x H): 6.9 x 5.71 x 2.76 inch / 175 x 145 x 70 mm
• Shipping Dimensions (L x W x H): 14.57 x 14.38 x 12 inch / 370 x 365 x 51 mm
• Product Weight: 1.3 lb / 0.59 kg
• Shipping Weight: 27.5 lb / 12.47 kg

Manufacturer: On-Stage Stands
Model: HA4000
SKU: I450394-N-2-WHXE
UPC: 659814129737

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.