Swissonic HA660 Headphone Amp

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Swissonic HA660 Headphone Amp

Swissonic

HA660 Headphone Amp

4.7 Expert Rating

Product Info

Article Number: 537575
Model: HA660 Headphone Amp
Price: $185.90

* Prices may vary. Check retailer for current pricing and availability.

The Swissonic HA660 is a solid, no-frills headphone amp built for serious studio work. It’s great for engineers, mixers, and anyone needing clean, accurate headphone monitoring with a bit of extra control over stereo imaging. Its balanced inputs and robust build quality make it a reliable addition to a professional recording environment.

Product Description

  • Swissonic HA660 Headphone Amp
  • Studio Headphone Amplifier
  • Connection and selection of 3 stereo sources
  • Balanced XLR input
  • Balanced TRS jack input
  • Unbalanced RCA input
  • Mono
  • stereo or mute selector switch
  • Feed: adjust the crosstalk of the left channel to the right channel and vice versa - selectable in 3 steps
  • Angle: 3 Virtual positioning of speakers selectable
  • M/S Level: 3 Steps selectable to adjust the mid-side level ratio
  • Max. input level TRS
  • XLR: +23.5 dBu
  • Max. input level RCA: +20 dBu
  • Output power: 2x 400 mW(@250 Ohm)
  • Frequency range: 20 - 20
  • 000 Hz
  • Dimensions (W x D x H): 217 x 318 x 41 mm
  • Weight: 2.8 kg
PROS
  • • Balanced XLR input provides clean, low-noise signal path.
  • • Feed control offers nuanced stereo imaging adjustments.
  • • Robust metal chassis feels solid and minimizes external vibrations.
  • • Sufficient power handles high-impedance headphones with authority.
CONS
  • • Size and weight make it less portable for mobile recording setups.
  • • Limited input gain range might struggle with very low-level signals.
  • • M/S processing is subtle, may not be useful for all workflows.

Product Video

Key Features

Channels 3 Stereo
Power 2x 400 mW @ 250 Ohm
Impedance Range 32 - 600 Ohms (estimated, based on power output)
Connections XLR, TRS, RCA, Headphone Out
Weight 2.8 kg

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Frequently Asked Questions

It subtly adjusts crosstalk between channels, allowing for a wider or more focused stereo image; experiment to find what works best for your headphones and mix.
No, it's a simplified adjustment affecting the level relationship between the mid and side channels, offering a subtle spatial tweak.
Planar magnetic and high-impedance dynamic headphones will really shine with the HA660’s ample power and clean signal.

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