I am researching alternative means of cancer treatment and would appreciate help to be able to drive specialist coils in my test rig from a sound card in my PC.
I have little or no knowledge on the subject and would be extremely grateful for some technical guidance to avoid blowing my sound card.
My test rig has two coils one of circa 145 Ohm impedance and the other 170 Ohm impedance.
Presently the card drives a set of Sennheiser HD650 Headphones with a nominal impedance of 300 Ohm.
Is it likely that I can use this sound card and the output that I currently use to drive my headphones to drive the two coils in series, please?
Thank you in advance for your kind guidance.
This is the spec for the sound card.
ASUS Xonar Essence STX Sound Cards
- · Output Signal-to-Noise Ratio (A-Weighted):
124dB for Front-out,117dB for Headphone-out (600ohms) dB
Input Signal-to-Noise Ratio (A-Weighted):
118 dB
Output THD+N at 1kHz:
0.0003% (-110dB) for Front-out, 0.001% (-100dB) for Headphone-out
Input THD+N at 1kHz:
0.0002% (-113dB) for Line-in
Frequency Response (-3dB, 24-bit/192kHz input):
<10Hz to 90KHz
Output/Input Full-Scale Voltage
2 Vrms (5.65 Vp-p) - · Bus Compatibility
PCI Express:
-PCI Express Rev. specification compatible
-Compatible with X1, X4, X8, X16 PCI Express slots
- · Main Chipset
Audio Processor:
ASUS AV100 High-Definition Sound Processor (Max. 192KHz/24bit)
24-bit D-A Converter of Digital Sources:
Texas Instruments PCM1792A*1 for Front-Out (127dB SNR, Max. 192kHz/24bit)
24-bit A-D Converter for Analog Inputs:
Cirrus-Logic CS5381* 1 (120dB SNR, Max. 192kHz/24bit)
High Fidelity Headphone Amplifier:
Texas Instruments 6120A2*1 (120dB SNR, 100dB THD+N @ Vcc±12V, RL=600Ω, f=1kHz)
