This small drum machine doesn't look like much, but in fact it has a good amount of nice features, and is more versatile than one would expect from a preset drum box. This is mainly due to the presence of five 'cancel' buttons which allow you to remove unwanted sounds from any of the rhythms; very useful, because so many times you find a great beat, but one of the sounds ruins it...
The HR-2 also has a digital numerical display that actually writes the bar number, instead of the usual blinking light in other units from the era. This must have been pretty exciting at the time!
An inside view of the HR-2's state-of-the-art interface!
Of course, you can depress more than one button at a time, which allows for unexpected variations (or, as they say, super variations!), and one of the beats is in 5/4 time, which is pretty unusual for any preset drum machine...
This drum box was pretty expensive at the time, as can be seen from the following catalog; 55,000 Yen amounts to more than 500$ US dollars!
Excerpt from a 1977 Hillwood catalog
I've never had an issues with my HR-2 so far, so no maintenance has been performed. I'm planning to mod it for multiple outputs in the future, I'll update this section once it's done.
One thing that worries me is the presence of what seems to be a ROM chip to store the preset rhythms. Everytime I see one of those, I get nervous. You see, once they go, there's nothing much that can be done except finding another unit and ripping the chip from it. And they do fail, it's happened to me more than once... So I'm crossing my fingers this one won't break.
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