
Benchmark NL4-XLR4 Headphone Adapter Cable for AHB2 Power Amplifier
This adapter cable turns the AHB2 power amplifier into the ultimate headphone amplifier for driving headphones that require a high drive voltage. The AHB2 will deliver a drive voltage that is 9 to 10 dB higher than that of the very-capable HPA4 headphone amplifier. Cable length is 3 feet. The AHB2 power amplifier is designed to drive 100 watts per channel into a pair of 8-ohm loudspeakers and for this reason, it delivers 28.28 Vrms on each channel at full output. This is more than enough voltage to let the smoke out of ordinary headphones, not to mention the associated hearing damage. This cable should only be used with headphones similar to those listed below. These headphone all have a voltage sensitivity that is less than 100 dB SPL at 1 V. Do not confuse voltage sensitivity with power sensitivity which is expressed relative to 1 mW instead of relative to 1 V. Use caution when connecting headphones to a power amplifier. Start with the volume control low and make sure your upstream e