Hello all, I just put in my pre-order for the LCD-GX gaming headphones recently and due to the ultra-low impedance I'm unsure if my current rig would work or not; I dont want to blow them out! Also, does the frequency response range of the dac/amp bottleneck the performance of the headphone? The headphones produce from 10-50k but my amp/dac do 20-20k, does that mean I'm not utilizing my headphones to their full potential due to poorly matched dac/amp?
Pre-ordered headphones -LCD-GX info:
Style Over-ear, open-back
Transducer type Planar magnetic
Magnetic structure Single Fluxor™ magnet array
Magnet type Neodymium N50
Diaphragm type Ultra-thin Uniforce™
Transducer size 106 mm
Maximum power handling 500mW RMS
Maximum SPL >130dB
Frequency response 10Hz – 50kHz
THD <0.1% @ 100dB
Impedance 20 ohms
Sensitivity 100 dB/1mW (at Drum Reference Point)
Minimum power requirement >100mW
Recommended power level >250mW
Current DAC:
USB: C-Media CM6631A
SPDIF: AKM 4113
D/A Conversion IC:
Modi Multibit: Analog Devices AD5547
Analog Summing, Active Filtering:
Modi Multibit: Based on AD8512 with precision thin-film resistors, DC-coupled with DC servo
Output: RCA (single-ended)
Output Impedance: 75 ohms
Frequency Response: 20Hz-20KHz, +/-0.25dB
Maximum Output: 2.0V RMS
THD: Modi Multibit: <0.006%, 20Hz-20KHz, at max output
IMD:Modi Multibit: <0.007%, 20Hz-20KHz, CCIR
S/N: >104dB, referenced to 1.5VRMS, unweighted
Crosstalk: -80dB, 20-20kHz
Power Supply: Modi Multibit: Included 16VAC wall-wart with 100% linear power supply
Current AMP:
Sennheiser HD 700
Pre-ordered headphones -LCD-GX info:
Style Over-ear, open-back
Transducer type Planar magnetic
Magnetic structure Single Fluxor™ magnet array
Magnet type Neodymium N50
Diaphragm type Ultra-thin Uniforce™
Transducer size 106 mm
Maximum power handling 500mW RMS
Maximum SPL >130dB
Frequency response 10Hz – 50kHz
THD <0.1% @ 100dB
Impedance 20 ohms
Sensitivity 100 dB/1mW (at Drum Reference Point)
Minimum power requirement >100mW
Recommended power level >250mW
Current DAC:
USB: C-Media CM6631A
SPDIF: AKM 4113
D/A Conversion IC:
Modi Multibit: Analog Devices AD5547
Analog Summing, Active Filtering:
Modi Multibit: Based on AD8512 with precision thin-film resistors, DC-coupled with DC servo
Output: RCA (single-ended)
Output Impedance: 75 ohms
Frequency Response: 20Hz-20KHz, +/-0.25dB
Maximum Output: 2.0V RMS
THD: Modi Multibit: <0.006%, 20Hz-20KHz, at max output
IMD:Modi Multibit: <0.007%, 20Hz-20KHz, CCIR
S/N: >104dB, referenced to 1.5VRMS, unweighted
Crosstalk: -80dB, 20-20kHz
Power Supply: Modi Multibit: Included 16VAC wall-wart with 100% linear power supply
Current AMP:
- DarkVoice
- Tubes: 6N8P and 6N5P
- Impedance: 32 ~ 600 Ohms
- Frequency response: 10 Hz ~ 30 kHz +/-1 dB
- Signal-to-noise ratio: > 100 dB
- Power handling capacity: 1 W
- Distortion: < 2%
- Output: 1/4 in (6.3 mm) stereo jack, RCA jack for pre-amp
- Input: RCA jack
- Power supply: 110 V or 220~240 V
- 11.81 x 5.98 x 11.02 in (300 x 152 x 280 mm)
Sennheiser HD 700