Simple and intuitive operation, all backed by a 5-year warranty.
Truly a fine amplifier for our Planar and Dynamic friend
Delivers Uncompromising Performance for Planar and Dynamic Headphones
The PDA-1a is the direct beneficiary of technology developed and derived from our highly successful and greatly reviewed HSA-1b.
By eliminating the high-current requirements of speakers and ribbon headphones our model HSA has been purpose-tuned, to new heights, for even the most difficult to drive Planar and Dynamic headphones.
Everything You’d Expect From
RAAL-requisite, a Great Listen, Every Listen
Beyond audio performance, we added utility. As a result, the PDA-1a easily drives two headphones simultaneously and provides the second headphone output with 0dB, -5dB and -10dB range attenuation for better matching when using different headphone types or to lower volume, if desired, for the second listener.
Single-Ended RCA and Balanced XLR Inputs, 4-Grounding positions and 3-Levels of Input-Sensitivity, for XLR Inputs, providing for maximum range of settings for the 24-step attenuator.
PDA-1a - Planar & Dynamic Amplifier Specs
|Load Impedance:||0.3 ohm – infinity on headphone output connectors.|
|Output Power (one chanel driven):||8-ohm 12W, 16-ohm 6W, 32-ohm 3W, 64-ohm 1.5W, 120-ohm 0.75W, 240-ohm 0.35W|
|Frequency Response:||100mv/ in/sin. 15Hz – 500kHz|
|Power Bandwidth:||100kHz (-3db) at 1W|
|Distortion:||< 0,5% at 1khz|
|Signal to Noise Ratio:||Better than 90dB|
|Input Impedance:||40k Ω|
|Sensitivity:||0.5V /40k Ω|
|Input Connectors:||INPUT 1- 2 RCA Single-Ended, INPUT 2 - 2 XLR 3-pin Balanced (female)|
|Output Connectors:||2 x XLR 4-pin female (balanced Planar & Dynamic headphones) 2 x 6.3mm stereo jack (Planar & Dynamic headphones) 20 - 600Ω|
|Outputs for Dual Headphones:||-5dB and -10dB attenuation for 2nd output (for level match of headphones having different sensitivity)|
|Max Power Consumption:||150W, without signal 25W|
|Working voltage:||115V/230VAC (selector switch) or 100V (requires internal connection)|
|Dimensions:||Height 90mm, Width 218mm, D 320mm (3.54 x 8.58 x 12.60 inches)|
|Weight:||5.3kg (11.70 pounds)|