Are all biphasic waveforms alike?

No. Different waveforms perform differently depending on their shape, duration, voltage, current, and response to impedance. Different biphasic waveforms are designed to work at different energies. Impulse 6000D/7000DP measures the monophasic waveforms used in the legacy defibrillators, biphasic waveforms used in current technology, as well as pulsed-biphasic waveforms, an emerging technology.