One of the simplest of amps, but still sounds so good. RSA Tomahawk. This little dude is pushing my Legato's today.

I've messed around with Opamps, capacitors and buffers and the effects it has on sound. Operating temps on the buffers also has a sound effect, but that is on bigger stuff. Hence why I have a variety of amplifiers with different combo's of opamps and buffers, so I don't get "bored" with a...

Swapped out the AD8620 Opamp to a Muses8832 inside the AM3E amp module, since I still use the FiiO Q5 and Q5s Dac/Amps. I shall call this module the AM3F.

This is a shot in the dark, but I'm looking for an old IBasso DB2 Boomslang2 dac.

I've double stacked the buffers inside my RSA SR71B. Basically same thing I do with my Ibasso PB2. Sub bass sounds nicer to me, especially with planars and the JVC s2k.

Just get the MMCX adapter for the Sony and you can use any cable after that.

My other battery came in from Amazon and installed it in my oldie-> Ibasso D12 Ananconda. Soldered up some new EA Conx connectors and jamming Sony EX800ST's. Opamp installed is a AD8656, with stock silver buffers.

I found a plug and play battery on Amazon for the Ibasso Boomslang DB1, so that is the setup for the day at work.

Dug up my old Ibasso PB1 and RSA F35. This morning I soldered up a new interconnect with Mogami wires and jamming as I type this up.

Many years later......Yes I'm still using mine. Updated the Opamps in 2020 to AD8397 and still enjoying with the Meze Penta and 7hz Legato.

The battery cell cannot be purchased by itself. I harvested the cell from a HP branded laptop battery pack and soldered it onto the old BMS. I used a heat gun to warm up the rear cover to soften up the glue that holds it down. So it's not really job to be done by a novice.

I replaced the battery myself and it's an branded ATL cell, that is used in HP laptops. Way longer runtime and it was a tight fit. CT scan of the original swollen R5 battery.

Effect audio Cadmus is what I use with mine.

I just got the Cadmus and hooked it up the 7Hz Legato. To my ears it's the best combo. Sub-bass beats my previous copper cable, which is crazy to me. I dropped my EQ at 45hz by 3db! And the highs are "smoother" around the edges, is the only way I can explain it. Good stuff.

For me the small JVC Spiral dot tips work best.