If I just read the specs right, this has better/quite similar measurements compared to O2?
Frequency Response: 20Hz-20Khz, -0.1db, 2Hz-200KHz, -3dB
Maximum Power, 32 ohms: 1.2W
Maximum Power, 50 ohms: 1.0W
Maximum Power, 300 ohms: 260mW
Maximum Power, 600 ohms: 130mW
THD: Less than 0.005%, 20Hz-20KHz, at 1V RMS
IMD: Less than 0.007%, CCIR
SNR: Greater than 100db, unweighted, referenced to 1V RMS
Crosstalk: -70dB, 20 Hz-20KHz
Output Impedance: Less than 0.1 ohms
Maximum Power, 32 ohms: 1.2W
Maximum Power, 50 ohms: 1.0W
Maximum Power, 300 ohms: 260mW
Maximum Power, 600 ohms: 130mW
THD: Less than 0.005%, 20Hz-20KHz, at 1V RMS
IMD: Less than 0.007%, CCIR
SNR: Greater than 100db, unweighted, referenced to 1V RMS
Crosstalk: -70dB, 20 Hz-20KHz
Output Impedance: Less than 0.1 ohms
[size=x-small]Frequency Response[/size] [size=x-small]+/- 0.1 dB Excellent[/size]
[size=x-small]Max Output 15 Ohms[/size] [size=x-small]337 mW Excellent[/size]
[size=x-small]Max Output 33 Ohms[/size] [size=x-small]613 mW Excellent[/size]
[size=x-small]Max Output 150 Ohms[/size] [size=x-small]355 mW Excellent[/size]
[size=x-small]Noise (ref 400 mV)[/size] [size=x-small]-105 dB Excellent[/size]
[size=x-small]Output Impedance[/size] [size=x-small]0.54 Ohms Excellent[/size]
[size=x-small]IMD SMPTE[/size] [size=x-small]0.002% Excellent[/size]
[size=x-small]Crosstalk 15 Ohms[/size] [size=x-small]65 dB Excellent[/size]
[size=x-small]Max Output 15 Ohms[/size] [size=x-small]337 mW Excellent[/size]
[size=x-small]Max Output 33 Ohms[/size] [size=x-small]613 mW Excellent[/size]
[size=x-small]Max Output 150 Ohms[/size] [size=x-small]355 mW Excellent[/size]
[size=x-small]Noise (ref 400 mV)[/size] [size=x-small]-105 dB Excellent[/size]
[size=x-small]Output Impedance[/size] [size=x-small]0.54 Ohms Excellent[/size]
[size=x-small]IMD SMPTE[/size] [size=x-small]0.002% Excellent[/size]
[size=x-small]Crosstalk 15 Ohms[/size] [size=x-small]65 dB Excellent[/size]