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You may remember the Chazz. It used EL34/KT88 and 6SN7 (earlier versions 6SL7) and output transformers. Eventually we sold out and it was right at the time when chassis and transformer parts costs were escalating; our attentions were diverted to reworking our whole lineup to work within the new economic realities.The Chazz 2 makes it own statement. You be the judge:
-OTL through film caps. MUCH much better clarity, finesse and speed as compared to electrolytics.
Front panel:
-dual outputs: one takes from the anode and the other from the cathode. The circuit is patented and allows this little trick. It also allows you to experience the difference between anode and cathode sound. You can drive with both (two headsets) at the same time. But please don't fight over who gets the anode and who gets the cathode!
It also allows to use both outputs to combine into a balanced output. I heard the AKG K1000 connected this way and more than respectable.
-adjustable feedback: front panel selector toggles 0/-3/-6db feedback. A comparison is VERY interesting! You choose the flavour you like.
-carbon attenuator because we don't like plastic in between us and the music. We are a carbon-based lifeform.Back panel:
- IEC in
- two pairs of gold plated RCA inputs and selector switch to choose source
- rocker power switchTop deck:
-6AS7/6080/6N13 power tube. close to unity gain and low output impedance make this ideal for headphone amplifier. A proven favourite with OTL users too. In good supply and low cost
-12AU7 x 2. We all know this tube. Easy rolling and sound meshes very well with the 6AS7
-1 choke and power transformer with chrome end bells and the two copper top film caps.Chassis:
premium parts - tube sockets, 4mm thick chassis and 7mm thick faceplate.
170mm x 310mm
weight 5kg + shipping materials
This one is assembled and ready to plug and play
Take control! DIY.
Edits: 03/12/09
"It also allows to use both outputs to combine into a balanced output."
Balanced headphone outputs are certainly all the rage these days. Are you saying it's possible to drive headphones that are rewired for balanced operation, such as Headroom's balanced headphone cables using two 3-pin XLR jacks?
Physically, how would you wire up the chazz 2? Each headphone jack should have L, R, ground, so then is the "L" from cathode and "L" from anode BOTH used to drive Left channel of the headphone, etc?
Off the top, can't say. I was at the factory and the guys called me over to listen to the K1000 hich they had conencted across anode cathode. I asked was it real balanced and they said yes. I listened and it sounded good but of course, wouldn't play loud, but loud enough for me.
Once we've managed the docs for this machine I'll try to include some more detail.
regards
Brian
DIY - Done Right!
If it can be configured "real balanced" and at least have the option to add balanced headphone jacks (either two 3-pin XLR or one 4-pin XLR).
There are tons of headphone lovers at Head-Fi.org, including me, who are eager for a reasonably-priced tubed balanced headphone amp!
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