DACS wanted to offer something exceptional for mastering and mixing on headphones, to develop our outstanding lineage into something that would become the new standard.
The DACS Clarity HeadLite is renowned for its power and accuracy and has been driving studio headphones for more than 20 years. The HeadLite3+ with its +Power modules was developed to cater for the growth in high-power, high-fidelity headphones. The next step up was Purity.
DACS got to work designing an amplifier that would drive any set of headphones to their optimum performance. After two years of an intense R&D journey the Purity Headphone Amplifier has left the drawing board. It’s Pure Class A output and huge transient loving headroom make any pair of headphones sound their very best.
Drive Topology
Listening tests with a large mix of headphones confirm DACS' Pure Class-A topology excels with all types of headphones and listening levels. To run in Class-A, the Purity Headphone Amplifier and Purity BDZ Power Supply generate a lot of heat. The case and ultraquiet Noctua fan provide plenty of airflow to keep the temperature stable, whatever the load.
Differential Input and Output
DACS’ balanced input uses an instrumentation format, with hand trimmed CMRR to give the most accurate interference free signal.
Then DACS looked at balanced headphones. The Purity Headphone Amplifier provides remarkably low crosstalk between the two independent amplifier channels; using balanced output connections. That channel independence is maintained without compromise from the Purity BDZ Power Supply all the way to the ears.
Purity Power Supply
The new Purity BDZ Power Supply uses a superstable, superlow noise op-amp-based design, with zero-ohm output impedance. When driven hard, headphones produce back EMF generated by current flowing back toward the voltage regulator, causing instability. In conventional PSU designs, this back EMF significantly reduces the PSU’s performance, with the amplifier losing control of the headphones and generating distortion. DACS’ unique Purity BDZ Power Supply design sinks that current away ensuring zero-ohm impedance and total output voltage stability, regardless of what's happening at the headphone level.
- Special Order Item
DACS Purity Headphone Amplifier
- Inputs - RCA & Balanced XLR/Jack
- Outputs - 3P Jack & 4-Pin XLR Balanced
- Gain - +10dB Unbalanced, +3dB Balanced
- THD+N - 0.00078% @ 1kHz +18dBu input, 0.00095% 20Hz - 20kHz
- Z Out - <0.1 Ω
- SNR - 124 dB
- IMD - <0.005%
- Dynamic Range - 124 dB
- Frequency Response - 5Hz-20kHz +/-0.15dBu
Dimensions
- Width: 210mm
- Height: 100mm (inc feet)
- Depth: 300mm (inc knob & pole connectors)
- Weight 2.5kg
Packaging
- Height: 230mm
- Width: 350mm
- Depth: 470mm
- Total Weight 4.8kg