Skip to main content Skip to footer
Up to 20% off with code: APRIL20
Call our Gear Advisors (877) 509-9963 Hablamos Español
MF MD HG01 Mic Month 04-05-18

SM Pro Audio HP4v 4 Channel Headphone Amplifier

  • Write a Review
Product 180208
Product Price $0.00
  • Free Shipping With Backstage Pass (48 Contiguous U.S. States)

The HP4v is a compact 4 channel headphone amplifier. Featuring 4 high powered stereo headphone amplifiers each with independent volume control, the H...Click To Read More About This Product

We're sorry-this item is unavailable.

Find a similar product below or contact our experts for a recommendation of great alternatives. Call us at 800-449-9128.

Customers Also Viewed:

A professional, multi-purpose headphone amplifier system for stage and studio applications.

The HP4v is a compact 4 channel headphone amplifier. Featuring 4 high powered stereo headphone amplifiers each with independent volume control, the HP4v satisfies all your headphone monitoring needs. In addition, each amplifier can select its source from up to two stereo input signals connected at the rear of the unit.

  • Four totally independent stereo high-power amplifiers in Half 1 RU package
  • High quality audio even at extremely high volume levels
  • Two independent stereo input sections
  • Output level control for each channel
  • Independent selection of input for each output
  • Headphone output impedance 22 ohm
  • Output level 300mW @ 33 ohm
  • Channel Noise < -120dB
    Distortion < .05% 20Hz- 20kHz
    110v-220v External power supply
  • Size:Half Rack
  • High-quality components and rugged construction
  • External 16Vac power supply
  • Connectors: 1/4" jack
  • Type: unbalanced
  • Impedance: 47k Ohms
  • Peak input level: +25dB
  • Gain control range: 40dB
  • Max. output level: 300mW@32 Ohms (max 1W@32 Ohms)
  • Output impedance: 22 Ohms
  • Max. gain: +20 dB
  • Frequency response: 20Hz20kHz, 0dB-2B
  • Distortion: 0.02%
  • S/N Ratio: better than 80dB
  • Crosstalk rejection: >72dB@1kHz;-20dBinput
  • Volume per channel: variable
  • Signal selectors: variable
  • Mains voltages:
  • USA/Canada 120 V AC, 60 Hz
  • U.K./Australia 240 V AC, 50 Hz
  • Europe 230 V AC, 50 Hz
  • General export mode:l 100-120 V AC, 200-240 V AC, 50-60 Hz
  • Power consumption: 6.5VA
  • Fuse:
  • 100-120 V AC: 630 mA(slow-blow)
  • 200-240 V AC: 315 mA(slow-blow)
  • Mains connection Using External Power Supply: 16Vac
  • Dimension: 1 3/4" (44.5 mm) * 19" (482.6 mm) * 8 1/2" (217 mm)
  • Net weight: approx. 3.15 kg

Review Snapshot

by PowerReviews

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


Undeniably professional

By dcsimon

from Jefferson, GA

Its a compact workhorse of an amp. The pots are blissfully smooth, as well as the jacks, there something to be said for input jacks that feel good when you plug in. The thing will definitely pump out the juice, doubt you'll ever need to turn the volume up past the half way mark, but even if you do, its still clean as a whistle. Overall its a very sturdy, very well built piece of equipment that will provide exceptional monitoring quality and options for the price.

Displaying review 1

Back to top

See All SM Pro Audio Headphone Amplifiers/Mixers
You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.