SPL HPm
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SPL
HPm
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The SPL HPm is a seriously impressive headphone monitoring solution. It's built for engineers, producers, and critical listeners who demand transparency and detail, and want to avoid listening fatigue – the dual amp design is a real game-changer for precision mixing.
Product Description
- SPL HPm
- Headphone monitoring amp with the Phonitor Matrix 500 module
- Two separately adjustable headphone outputs
- each with their own separate amplifier stages
- Phase reversal of L and R channels
- as well as stereo / mono / mute switching
- Electronically balanced
- Impedance: 10 kOhm
- Max. input level: +21 dBu
- Max. output level: +18 dBu @ 600 ohm
- +15 dBu @ 300 ohm
- +5 dBu @ 32 ohm
- Frequency range: 10 - 10
- 000 Hz
- Noise floor: -92.3 dBu (A-weighted)
- Total harmonic distortion (THD): 0.00024% (at an output level of 0 dBu and 600 ohm)
- 0 dBu = 0.775 V
- Dual slot 500 series rack module
- Weight: 0.8 kg
PROS
- • Exceptional channel separation for critical monitoring
- • Ultra-low noise floor reveals subtle sonic details
- • Phonitor Matrix technology minimizes listening fatigue
- • Robust build quality; feels like a serious SPL product
CONS
- • Limited frequency response compared to some high-end amps
- • Price point puts it beyond casual headphone users
- • Dual slot 500 format restricts rack space availability
Product Video
Key Features
Module Type
Headphone Monitoring Amplifier
Channels
2
Controls
Phase reversal, stereo/mono/mute switching, separate output adjustments
Compatible Format
500 Series
Weight
0.8 kg
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Frequently Asked Questions
It uses clever phase manipulation to reduce interaural crosstalk and transient distortion, making details clearer and lessening ear strain during long sessions.
Yes, the 10kOhm impedance handling allows for excellent performance with a wide range of headphones, including those with higher impedance requirements.
The ultra-low noise and distortion, combined with the Phonitor Matrix, gives it a noticeable edge in clarity and fatigue reduction compared to many alternatives.
