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D.A.S.
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This can be easily solved with NFB (neg.feedback) using an Op Amp with some low gain but adequate GBW or a better CE amplifier with RC feedback from the output to the input with a series R added from source to achieve about half of the expected gain from R ratios.

Consider Rs=100 added or included and 2k for NFB from output to cap to base for a maybe gain of 10.

Each TIP on the datasheet has an hFE = 25 typ. @ 3A and approx =130 @ 3A/25A or a net gain of In order to have high Damping factor >>100 the Zout must be <<1% of the 8 ohm load.

  • since 2 stages only yields a total hFEt=3250 x 8 ohm load , Req= 8*3250 = 26k for maximum power transfer, but for damping the source impedance must be <<1% of this or 260 ohms which is near the open loop Rout of many Op Amps.
    • Your CE amp has an output R=122 ought to be OK
  • But with NFB using the inverting feedback of an Op Amp this can be reduced by Gain.
  • Stray capacitance can cause loss of phase margin so an RC snubber is used to attenuation potential oscillations at low gain.
  • so choice of Op Amp with high GBW is preferred for fmax in your passband is desirable, e.g. >=10MHz and Av=<10?

Then your crossover distortion reduces by amount feedback gain e.g. 10MHz/100kHz/Av=10=10

You must define your design goals for THD and gain with f first.

D.A.S.
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