Doepfer A-131 – VCA
Voltage Controlled Amplifiers (exponential)
€ 81,36For European customers, please select your country to view the correct price including vat
Arriving shortly
Contact us to verify delivery times
KEEP IN TOUCH
Find out our opening hours
Your Contact for the Synthesizers Department

Synthesizers Showroom:
Mon - Tue: 10:00 am - 1:00 pm / 2:00 pm - 6:00 pm
Thu - Fri: 10:00 am - 1:00 pm
Pro Audio department:
Mon - Fri: 10:00 am - 1:00 pm / 2:00 pm - 6:00 pm
Visits by appointment
Arriving shortly
Contact us to verify delivery times
- After Sale Support
After Sale Support
At your side to grow with you. Behind this website there are real people who work every day to always offer the best possible service and give maximum support even after the purchase. - 2 Years Warranty
- Secure Payments
Modules A-130 and A-131 provide voltage-controlled amplification. For audio signals, you would normally use the exponential VCA (A-131), and for control voltages, the linear VCA (A-130). It doesn’t always have to be that way, though.
The amount of amplification the VCAs provide is determined by the voltage at the CV input, and the position of the gain control, which sets the overall gain in the system.
The VCA has two audio inputs, each with an attenuator. They are amplified by an amount determined by the combination of the gain and the two CV controls.
Remarks:
Over the years three different versions of the module A-130 und A-131 have been manufactured:
Version 1:
The first versions of A-130 and A-131 were equipped with the Curtis chips CEM3381/PA381 (A-130) and CEM3382 (A-131). These versions of A-130/131 were not able to process slowly varying control voltages as they had AC coupled signal in/outputs. They were manufactured until about 2001.
Version 2:
The second versions of A-130 and A-131 were equipped with the OTA circuit CA3080 and they were able to process even slowly varying control voltages as they had DC coupled signal in/outputs. They were manufactured from 2001 until March 2013.
Version 3:
Die latest versions of von A-130 and 131 are equipped with the high-end VCA circuits SSM2164/V2164 (A-130) and THAT2159/V2159/SA2159 (A-131). Even they are able to process slowly varying control voltages as they have DC coupled signal in/outputs. These are manufactured since March 2013.
Depth | 45 mm |
---|---|
Width |
Only logged in customers who have purchased this product may leave a review.
Return and restocking option is available for private customers only.
We will issue a refund/credit if you are not satisfied with your purchase and notify us within 10 days of product receipt.
It must be returned in the original packaging and in saleable condition and must be returned freight prepaid.
Return and restocking rights are not applicable for Audio/Video software products.
Shipping and handling charges to and from are not refundable.
You might also be interested in one of the following products
Manhattan Analog MA35
€ 208,00For European customers, please select your country to view the correct price including vat
Brand: Manhattan
VCF/VCA module
Arriving shortly
Contact us to verify delivery timesOut of Stock
Free shipping in Italy
Doepfer A-132-3 Vintage Edition
€ 127,12For European customers, please select your country to view the correct price including vat
Brand: DOEPFER
Dual linear/exponential VCA
Arriving shortly
Contact us to verify delivery times
Reviews
There are no reviews yet.