I am loving my new Frenzel Rocker 800Z! It is a hand-wired point-to-point tube preamp inspired by the classics. The basic model is a 2 channel preamp (Fender/Marshall), but I ordered the upgrade to include a 1W power section and had the Fender channel replaced with a Hiwatt one (no charge!). There is an independent line out for each channel as well as a combined mono line out. The Hiwatt channel sounds dead on to me and I want to play Entwistle and JJ Burnel licks every time I plug into it. Channel 2 is voiced after a Marshall JCM800 and definitely has a more mid-focused tone. I recorded some quick clips of each channel with low, medium and high gain. Pick first, then fingerstyle. Custom Warmoth T-bass with a Seymour Duncan SPB-3 pickup, no tone control, strung with D'Addario Pro Steels>Frenzel Rocker 800Z>Ampeg SVT-810e (top half)>Shure SM57>Presonus Audiobox. No compression, EQ or editing was done. The amp EQ was set as shown in the pictures (bright switches engaged), only gain and master settings were changed. The 1 watt power amp is fine for quiet practice and sounds fantastic with guitar. I tried just the preamp out into the power section of my Peavey MiniMax and DANNNNNGGG...it was Hiwatt heaven! I can't wait to rock this at practice someday when we're not hunkered down under the penumbra of the coronavirus. I like my tone to range from nasty to filthy and this amp might knock my Darkglass B7KU off my board. If I do decide to gig with it I will make a headshell for it because the chassis is a little flimsier than I like. It can also be ordered with a cage enclosure or build as a rackmount unit. Frenzel was great to work with and communicated frequently by email. I feel like these amps have been slept on by bassists so check them out. Handmade in America and significantly less expensive than most of the boutique gear out there.