Description
DISCONTINUED -
Dual channel, state variable filter
Micro Hadron Collider dual VCF scientifically smashes two electron waves into oblivion at the speed of light, producing an audio frequency Higgs-Boson particle beam of harmonius analog physics equilibrium. Well...not really, but it does some other cool stuff.
In reality, Micro Hadron Collider is a very powerful dual VCF with an integrated mixer to pit the two sides against each other producing complex waveshapes and artfully sculpted timbres. uHC incorporates versatile audio signal flow with intuitive CV control and normaling, creating a powerful filter without the need for complex patching.
Micro Hadron Collider is a dual state-variable VCF with all CV inputs of the first filter normaled to filter 2. The uHC can be used as a 4 pole filter, two independent 2 pole filters, or some combination in between. A voltage controlled mixer blends the two ouputs, providing another dimension of waveshaping. Filter 2 can use one of the following as its input: the output of Filter 1 (series), the input of Filter 1 (parallel) or it's own input (split). Voltage control of Frequency and Resonance is provided for each filter section. Signal paths for audio and CV are shown with arrows to speed up patching.
- Powerful dual state-variable VCF
- Integrated mixer
- Can be used as a 4 pole filter, two independent 2 pole filters, or any combo thereof
PDF MANUAL
The flow chart below shows the audio and how it is routed around Micro Hadron Collider. Click the image for a larger version. The blue lines are for the Audio Expansion module (5HP; sold separately), providing dedicated filter outputs and additional audio inputs.
The CV signal flow is much simpler. Knobs at the top control the offset of the frequency, resonance or mix. CV In jacks at the bottom with attenuators control their respective parameters. The CV inputs from Filter 1 are normaled to Filter 2. So plugging in a cable to Freq 1 will send the same signal to the Freq 2 jack, where it can be used or dialed out by attenuating fully CCW. This allows you to use one signal but control both filters equally, offset, or completely separately.
The 1V/Oct input is calibrated to produce exactly one octave of change per volt of input. Using the switch on the Filter 2 side will route the 1V/Oct signal to Filter 2, controlling both simultaniously.
For additional CV controls, a CV Expansion module (5HP) may be attached to uHC with it's own 14 pin cable. The CV Expansion provides additional Frequency, Resonance, and Mix inputs with attenuators. It also provides linear frequency input for each channel. The jacks are normaled here as well, so you can control both filters with one cable.
Micro Hadron Collider is a multimode filter and outputs Low Pass, Band Pass and High Pass filter responses. Additionally Filter 2 has a notch output for elliptic filter responses. The switch just inside each output jack selects the filter mode. If multiple modes are required simultaniously, the Audio Expansion module provides dedicated outputs and a Notch output for Filter 1.
Using series mode and low pass or high pass on Filter 1, the notch output on Filter 2 creates an elliptic response. This leads to sharper cutoff frequency, but with a bounce back at around -40dB. Set the two Freq knobs to ear for the elliptic response. For low-pass elliptic, the 2nd filter will have a slightly higher cut-off frequency than Filter 1. Lower resonances on the 2nd filter tend to produce better results (as the notch will be wider).
What sets uHC apart from most other VCFs is the integrated voltage controlled mixer. The mixing circuit takes each output and smashes them together creating all different kinds of sounds without loads of extra patching. It can be used to create different and new filter modes -- Wide Notch, Dual Bandpass, etc. Also, for blending seperate sounds together using both filters split. Additionally, the mixer can be used without CV to blend just a little bit of high frequency punch with your fatty dub bass sound. The possibilities are endless.
The Mix CV input accepts DC to audio rate signals (and super-sonic) allowing for cool frequency modulation of the mixing signals. Use Square wave with variable duty cycle to make some very interesting wave shapes!
Filter 2's input to the Mixer has a phase switch to invert the signal, providing more control over the mix output.
Micro Hadron Collider is entirely analog. Using modern surface mount technology allows for very short signal paths which reduces stray capacitances and noise. We use 1% resistors, 2% PPS filter capacitors and factory matched transistor pairs creating a very stable and repeatable filter capable of very high Q factors. It is entirely DC coupled and can be used to process control voltages.
Micro Hadron Collider Expansion Modules Have Been Discontinued
Specs:
- Power: +12V = 100mA (up to 120mA with Audio Expansion Module) -12V = 85mA (up to 110mA with Audio Expansion Module)
- All inputs are 100k impedance. All outputs are 1k impedance
- Size: 16HP
- Depth: 25 mm
- Ships with four M3x6 mounting screws and a 16 to 10 pin power cable
- Every WMD product is warrantied for 12 months after purchase, but please contact us if you ever have problems. We will take care of you.
Note: Please install the cable with the red stripe pointing towards -12V (usually down on your power supply, always down on uHC).
Refund Policy
Returns
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.
Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at alex@wmdevices.com.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at alex@wmdevices.com and send your item to: 1145 W. Custer Pl., Unit A, Denver CO 80223
Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
Shipping
To return your product, you should mail your product to: 1145 W. Custer Pl., Unit A, Denver CO 80223
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.