MCM Model 555-8480 1 in 4 out headphone amplifier with power adaptor

No sales tax for customers outside California.  

The MCM Model 555-8480 is a compact 1-in/4-out headphone amplifier designed for studios, rehearsal spaces, podcast setups, and silent practice environments. This unit allows one audio source to be distributed to up to four pairs of headphones, each with its own independent volume control. It includes the original power adaptor, making it ready to use right out of the box.

This example is in excellent working condition with clean jacks, smooth volume knobs, and no unwanted noise or distortion. It accepts stereo line-level input via 1/4" TRS and outputs clean, amplified headphone signals with minimal coloration. Ideal for bands tracking together, instructors teaching privately, or home studio setups where multiple listeners need the same mix.

At Mahar’s Vintage Guitars, every piece of gear is tested, photographed clearly, and described accurately. We buy, sell, and accept trades on audio equipment, pedals, amps, and instruments.

Shipping policy:

Shipments will require signature on delivery, no exceptions.  If there is damage, the buyer must retain all packing materials intact and picture them immediately and send them to sales@maharsvintageguitars.com.  Less than 1% of our shipments are damaged in transit, and we are committed to making sure your item arrives safely, but we are taking these additional measures to make sure you are happy with your purchase.