- DARKVOICE 336SE VS BOTTLEHEAD CRACK INSTALL
- DARKVOICE 336SE VS BOTTLEHEAD CRACK MOD
- DARKVOICE 336SE VS BOTTLEHEAD CRACK UPGRADE
- DARKVOICE 336SE VS BOTTLEHEAD CRACK FULL
- DARKVOICE 336SE VS BOTTLEHEAD CRACK CRACK
There are a huge amount of options of different manufacturers and compatible types of tubes. Rolling tubes, while having absolutely nothing to do with physically rolling the round tube down a surface, may have been named from the circular rocking motion used to remove a tube from a socket.” I’ve described tube rolling before as a “type of fixed hardware equalizer (EQ)… a very subtle EQ that cannot be adjusted but only replaced.” From my Op-Amp article “…tube guys are forever collecting esoteric and expensive tubes to try in their amplifiers, all with the intended purpose of chasing that ‘ultimate’ sound. Try to remember that in general the changes will be fairly subtle and tubes may sound somewhat different but not necessarily better or worse. It’s easy to get obsessive and spend a lot of money hunting for and collecting the perfect tube. However, you didn’t just build a tube amp to not play around with things, did you? Tube rolling is a fun and easy way to tweak the sound to your preferences. The included tubes are of decent quality and can be expected to provide years of great sound. The two stereo channels each use half of the tube. A 12AU7 input tube serving as a voltage amplifier, directly coupled to a 6080 power tube as a cathode follower output.
DARKVOICE 336SE VS BOTTLEHEAD CRACK CRACK
The Bottlehead Crack circuit uses two tubes. The overall performance is cleaner and more present. Background noise is lessened, while clarity and dynamics improve. Installed Speedball.įrom my experience, this is unquestionably a worthwhile upgrade. “It puts a very high (several Megaohms) impedance load on the plate of the gain stage and the cathode of the follower stage… Two small Camille Cascode Constant Current Sources are installed in place of the plate load resistors on the 12AU7 input triodes, and two big and beefy ones complete with heatsinks are installed in place of the cathode load resistors of the 6080 triodes.” – Doc Bīottlehead states that “the improvement is easily heard” and makes the Crack “quicker, more quiet, better mids, better bass, better resolution.” In more technical terms, the constant current improves isolation of the power supply by about 60dB and keeps the tube in a more linear operating state as it approaches clipping. Note the unified board and revised components.īottlehead lists the Speedball as a Camille Cascode Constant Current Source (C4S) design, originally created by the late John Camille (known as Buddha in audio circuit design circles).
DARKVOICE 336SE VS BOTTLEHEAD CRACK FULL
Again, a full set of excellent instructions is included to guide you along. It does require removing 4 resistors from the stock Crack to install.
DARKVOICE 336SE VS BOTTLEHEAD CRACK INSTALL
It should only take you a few hours to complete and install a Speedball. The process of “stuffing” and soldering a circuit board isn’t difficult, but it is smaller scale and fussier than the Crack assembly. Speedball v1.īottlehead considers this a level 2 kit, meaning it is intended for someone who has some experience and already completed a kit (like the Crack). This is a much neater and elegant solution than the multiple board version 1 implementation that I have in my own Crack. The most recent version (v1.1) consists of two circuit boards, associated components, wires, standoffs, and screws.
DARKVOICE 336SE VS BOTTLEHEAD CRACK UPGRADE
The place to start your upgrade journey is with Bottlehead’s own Speedball kit. Other Modifications (not recommended by Doc B).Bottlehead Speedball – Camille Cascode Constant Current Source (C4S).
Just try to keep it sane ).”īasic modifications can be broken down into a few categories: There’s lots of great $15 caps and $30 pots out there that can improve the resolution, and tube rolling can be a lot of fun too.
DARKVOICE 336SE VS BOTTLEHEAD CRACK MOD
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