Sup, been lurking this forum for awhile. Anytime I need my headphone info I always add to the search "head-fi" lol. Anyways, I've been looking for replacements for my Sennheiser PC350s forever now. They have been great (bass mod as well). They are really a great unit. But after time, you just have to move up ya' know? Anyways, I've been back and forth. Tried several units across the past year. And every time I've gone back to my PC350s. I've tried AKG 550s, BeyerDynamic DT770s, Momentums, AT700s, and more that I can't remember. None really were able to pull me away from the PC350s. Anyways, I finally made the plung and picked up some HD600s. They are en' route currently so I can't post my expierence just yet. But I had a pretty basic question. I did plenty of searching and couldn't really find much. I currently use a Creative Sound Blaster Z. Which does have a dedicated 600Ohm dedicated Headphone Amp. But my PC350s I always preffered the sound from my Harman Kardon AVR 146. SnR is only 100db on it. While the creative is >105. I'm fairly confident the Creative can't drive them. So that thoughts not even there. But my question is do you think the H/K AVR146 will be ok? I mean, I remember in it's day being a fairly stout unit with discrete amps, twin power supplies. Here's the actual specs on the receiver. But I'm not sure what it puts out through the Headphone Jack? It does do Dolby Headphone. 30 Watts x 5, five channels driven at full power at 8 ohms, 20Hz – 20kHz, <0.07% THD, (surround modes); 150 watts total 40 Watts x 2, two channels driven at full power at 8 ohms, 20Hz – 20kHz, <0.07% THD, (surround off mode); 80 watts total Input Sensitivity/Impedance, Linear (High-Level): 200mV/47k ohms Signal-to-Noise Ratio (IHF-A): 100dB Surround System Adjacent Channel Separation: - Dolby Pro Logic I and II: 40dB - Dolby Digital: 55dB - DTS: 55dB High Instantaneous Current Capability (HCC): ±25 Amps Transient Intermodulation Distortion (TIM): Unmeasurable Slew Rate: 40V/µsec High current capability, ultrawide bandwidth amplifier design with low negative feedback All-discrete amplifier circuitry Dual independent power supplies, for front and surround channels Triple crossover bass management 24-Bit, twin-core Cirrus Logic CS 49510 DSP processor with 32-bit post processor 192kHz/24-bit D/A conversion Sampling upconversion to 96kHz Two-line dot-matrix front-panel display Source input renaming A/ V Sync Delay Thanks!