Rens Heijnis custom-built audio equipment - Although the DPA/B&K 4003, 4004 and 4012 have a transformer less output and a 130V power supply, for these microphones are also good improvements possible. The
![Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb](https://images.reverb.com/image/upload/s--WE5dOR2q--/f_auto,t_large/v1587313337/nb1ovpsrhrqjccum1wkb.jpg)
Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb
![Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb](https://images.reverb.com/image/upload/s--bcCIm0Rq--/t_card-square/v1587313318/fsgvmufqbk8gd5j4vvtq.jpg)
Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb
![DPA Microphones Nearfield Frequency Altering Grid for DPA 4003 4006 3503 3506 4051 4052 and 4053 Microphones Silver in Pakistan DPA Microphones Nearfield Frequency Altering Grid for DPA 4003 4006 3503 3506 4051 4052 and 4053 Microphones Silver in Pakistan](https://cdn.homeshopping.pk/product_images/q/DD0297__83644_zoom.jpg)
DPA Microphones Nearfield Frequency Altering Grid for DPA 4003 4006 3503 3506 4051 4052 and 4053 Microphones Silver in Pakistan
![DPA DD0251 Nearfield Frequency Altering Grid for DPA 4003 and 4006 Microphones (Silver) | Performance Audio DPA DD0251 Nearfield Frequency Altering Grid for DPA 4003 and 4006 Microphones (Silver) | Performance Audio](http://cdn.shopify.com/s/files/1/0614/8122/2322/products/dd0251-free-field-grid-silver.jpg?v=1665638895)