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Pittsburgh Modular Microvolt 3900 Synthesizer

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PBM MICROVOLT3900

Product Details

A modern, semi-modular synthesizer inspired by the instruments designed by our heroes. The Pittsburgh Modular Microvolt 3900 takes a new approach to building a raw, analog monosynth with a host of unconventional and inspirational features. Patch cables optional.

Creative Synthesis Design
With our new temperature stabilized, dual VCA oscillator core, the analog audio engine of the Microvolt 3900 feeds a set of timbrel waveshapers crafted for deep harmonic shaping, enabling a layer of additive synthesis alongside the classic subtractive synthesis waveforms. Waveforms are fed into our binary filter, a custom state variable filter architecture offering near infinite resonance with or without self-oscillation. Sonically this creates a juicy, fluid filter adding depth and energy to the oscillator that can scream if you ask it to.

Voltage Controlled Oscillator
Temperature stabilized, dual VCA based, analog saw core oscillator simultaneously outputting saw, sine, pulse, and folded waves. Modulation options include exponential frequency modulation, pulse width and fold timbre. The sine wave is capable of switching from a clean sine to a harmonically rich half rectified sine wave.

Waveform Mixer
Blend oscillator waveforms, analog noise, and preamp. The preamp uses a 30x soft clipping overdrive circuit to push external audio or internally patched feedback loops from mellow to monstrous.

Binary Filter
Based around the classic Pittsburgh filter circuit, the Binary filter in the Microvolt 3900 utilizes a smooth 2 pole, state variable core to create a buttery smooth frequency sweep paired with a new resonance circuit that slides from clean, gummy bubbles to a screaming, overdriving freakout.

Dynamic VCA
Organic and percussive, the dynamic VCA utilizes an entirely new, all analog design to replicate the impact transients and vibrance of a percussion hit. The result is a versatile VCA section that sounds natural and energetic. The dynamic VCA works in two modes: high quality VCA and a lowpass gate mode that manages both timbre and loudness at the same time.

Output Overdrive Line Level and Headphone Outputs
Output section uses a proprietary 30x symmetrical overdrive circuit for additional sound sculpting. Results can vary from subtle warmth to squared out, harmonic bliss. High quality stereo headphone amplifier and monophonic line level outputs controlled by a master volume slider.

MIDI / Arpeggiator
128 note Midi to CV converter with assignable modulation output and variable pitch bend paired with a multi-mode arpeggiator. The arpeggiator offers as played, hold, transpose, multiple octave, random, and 16-step sequencing with rest and note repeat modes. Octave up and down buttons shift the frequency of the oscillator +/- 2 octaves.

Modulation Sources
Balance control mixes a free running, wide range LFO with variable ramp and pulse waves with a complex random CV. The random section offers multiple modes from standard sample and hold type response to evolving six stage shift register pseudo random CV patterns.

Function Generator
Multi-function, periodic control voltage generator can be used as a voltage controllable 2-stage attack/decay envelope generator, voltage controlled LFO, and voltage controlled oscillator. Perfect for modulating the filter or FM'ing the oscillator.

Envelope Generator
A 4-stage envelope generator with independently adjustable attack, decay, sustain, and release stages. The ADSR shapes incoming gate signals to produce a more expressive instrument. The ADSR output can be used to control the amplitude of an oscillator, the cutoff frequency of a filter or any other voltage controlled function.

Inverting Mixer / Splitter / Offset
An extension of the patch bay, this flexible circuit works as a +/- 5 volt CV source, signal attenuator/inverter, 2 channel audio or CV mixer, and audio or CV signal splitter.

39-Point Patch Bay
Override the internal wiring and unlock the unlimited audio and CV signal routing potential of the Microvolt 3900 for maximum creative control. Fully modular patch bay allows almost every function of the Microvolt to be controlled with patch cables.

Features:
- Voltage controlled West Coast style wavefolder.
- Switchable harmonically rich sine wave.
- External preamp with independent 30x gain and output level controls.
- Classic Pittsburgh Modular low pass filter with extended resonance.
- Dynamic VCA with standard VCA and dynamic low pass gate modes.
- Variable overdrive on output.
- Multi-mode sequencing arpeggiator.
- Chaotic random CV and gate generator.
- Multi-tasking function generator works as a voltage controlled envelope, LFO, and oscillator.
- Highly tuned ADSR envelope generator.
- 39-point Eurorack format compatible patch bay
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- Powder coated steel and walnut construction.

- Dimensions: 10.375" x 7" x 1.875"

- Weight: 3.6 lbs

- Power: 1.5A +15v DC power adapter

 

Included:

- Patch Cables: 5 Nazca Audio brand patch cables.

- Midi connector cable

- Universal DC power adapter

When will I receive my shipment?

We ship on business days (Saturday, Sunday, and holidays are not business days). Packages ship from Mississippi, Nevada, New Jersey, or Ohio -- we cannot guarantee that any product will ship from a specific warehouse. Expedited Shipping (1-Day Air and 2-Day Air) is the only way to guarantee that you will receive an item within a certain time frame. Delivery estimates for expedited shipping options are listed on the product page for the item in question. All expedited shipments are delivered Monday-Friday.

Ground Shipping typically takes 1-4 business days from the date of shipment (for orders within the 48 contiguous United States). Residential ground and Free 2-Day shipments are delivered Tuesday-Saturday. Commercial ground and Free 2-Day shipments are delivered Monday-Friday. Make sure to select the proper address type for your address in checkout, as delays may occur if your selection is incorrect.

For APO/FPO customers, all orders ship via USPS. Expedited shipping is not available. Tracking for these orders is not available.

For customers shipping to a PO Box, the order may need to be shipped via USPS. For this reason, expected delivery dates cannot be guaranteed.

Do you ship to my location?

For most products shipping to the continental United States, customers may choose Ground, 2-Day Air, or 1-Day Air delivery. We also ship to Alaska and Hawaii; however, due to carrier restrictions, we cannot ground-ship to those states.

In addition, we ships to the following destinations, though some restrictions apply:

  • Canada
  • Puerto Rico
  • APO/FPO
  • U.S. Territories

See instructions below for how to search the site by our eligible shipping destinations.

Note: We cannot change a shipping address on an order after it has shipped. If an order is returned because it couldn't be received at the listed shipping address, we will accept the return but will not refund the shipping charges.

Canada

We ship a lot of our most popular gear to Canada! To determine if item(s) ship to Canada, add the item(s) to your cart and enter your shipping postal code. Items that ship to Canada are sent via International Air, and delivery is typically 2-5 business days from the date of shipment.

Canadian orders are charged in U.S. dollars. Actual charges are dependent on your bank's conversion rate. Your bank may assess additional fees for international orders.

Although items shipped to Canada receive their full factory warranty, they must be returned to a United States service center for repairs. We're not responsible for any shipping or customs fees incurred in such a case.

Puerto Rico

We ship many items to Puerto Rico. To determine if item(s) ship to Puerto Rico, add the item(s) to your cart and enter your shipping zip code. Eligible items ship via International Air, and typically arrive 2-5 business days from the date of shipment.

APO/FPO

We ship to APO/FPO addresses for free, though over-sized items may be ineligible. To determine if item(s) ship to your APO/FPO address, add the item(s) to your cart and enter your shipping zip code.

U.S. Territories

We ship eligible products to American Samoa, the Federated States of Micronesia, Guam, the Marshall Islands, the Northern Mariana Islands, Palau, and the Virgin Islands. Eligible items typically arrive 2-7 business days from the date of shipment.

What about customs fees?

Please be aware of customs fees such as taxes and duties, which are not included in our shipping charges. Customs fees vary from location to location. Please check with your local customs office for more information on the fees in your area. If you refuse to pay these fees, your order will not be delivered. We cannot refund shipping charges if an item is returned due to refusal to pay fees, and a restocking fee may be applied to cover the cost of return shipping. Customs fees are non-refundable.

Which items ship immediately?

Most orders ship the same business day your order is placed when you place a valid order before the shipping deadline.

Immediate shipment is available Monday-Friday. A valid order placed before 5 p.m. EST will ship the same day when using Ground or Free 2-Day shipping. Ground and Free 2-Day shipping orders placed after 5 p.m. EST will ship the next business day. Many orders using an expedited shipping method (2 Day Air or Next Day Air), and placed before 10 p.m. EST, will ship the same day.

Shipment and availability information updates from our warehouse to our website almost in real time. We are highly confident of the status of each item when you view a page. However, we do not reserve inventory being viewed or even placed in shopping carts, so we cannot guarantee an item's availability until you have placed your order. In particular, if you have been in the checkout area for more than about 10 minutes, we do recommend that you refresh the page to get the most current inventory prior to checking out.

What is a valid order?

A valid order is for a valid item at a valid price, placed with a credit card with complete and verifiable address and other information. Details.

Does immediate shipment mean immediate delivery?

Once an order is shipped, our carriers (Federal Express and UPS) typically guarantee a service time for when the order will be delivered to you. Our carriers have a very good record of delivering at their promised service time. We will ship immediately, and on all items, we will refund expedited shipping charges if the carrier's service levels for your chosen shipping method are not met.

If a product is in stock, is there any reason it will not ship immediately?

Exceptions are very unusual, but here are some examples of reasons that might prevent us from shipping immediately:

  • Warehouse, call center, or web operations lose power or telecom connectivity.
  • Warehouse, call center, or web operations lose capability due to adverse weather (blizzard), safety threat, or other factors.

What can I do if I don't feel you've lived up to your guarantees?

If you ever feel we have not lived up to any of our guarantees, we want to know about it -- and we want a chance to do right if we agree. Contact Us.

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