0% up to 48 Months on over 110 Brands!

New & Current Vintage King Card Holders

$ 2,834 .00
No interest if paid in full within 12 months Learn more
Ships directly from Prism Sound
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. This item ships directly to you from the manufacturer. To ensure that the manufacturer currently has stock, please chat, call or email for the latest availability status.



Prism Sound 8C-AD 8-Channel A/D Module for ADA-8XR Interface

8-channel analog to digital module for the Prism Sound ADA8XR


Product Description

The Prism Sound 8C-AD 8-Channel A/D Module provides eight electronically-balanced analogue input channels to the ADA 8XR, on eight female XLR connectors.

Input line-up level (sensitivity) is variable for each channel over the range 0 dBFS=+5.0 dBu to 0 dBFS= +24 dBu, in 0.5 dBu steps plus a fine trim.

Each channel has a Prism Sound Overkiller progressive limiter capability, which prevents the A/D converter from reaching full-scale, even when the input level significantly exceeds the selected input range. More information about the Prism Sound Overkiller can be found in the Technical Background section of the Operation Manual.

Control of the input line-up level and trim, and of the Overkillers, is via menus which are present in the ADA-8XR Menu System if the Module is fitted.


  • Connections: Electronically balanced inputs, female XLRs
  • Differential input impedance: 21k5 Ohm
  • Full-scale input range (software-controlled: +5dBu..+24dBu in 1dBu steps, trims in 0.05dBu steps
  • Absolute gain accuracy: ±0.05 dB
  • CMRR 60 Hz:<-100dB, 1kHz:<-90 dB; 20 Hz - 20 kHz: <-65 dB
  • Overkiller: Software selectable On/Off
  • THD+N : (997 Hz, -1 dBFS) -105 dB (0.0006%)
  • Dynamic range: (997 Hz, -60 dBFS) 112 dB
  • IMD (SMPTE/DIN, 60 Hz @-3 dBFS & 7 kHz @-12 dBFS): <-100 dB
  • Maximum harmonic spurium (997 Hz @-1 dBFS): <-130 dBFS
  • Frequency response fs = 192 kHz: -0.05 dB: 6.2 Hz - 50.2 kHz; -3dB: <1 Hz - 77.7 kHz
  • Frequency response fs = 96 kHz -0.05 dB: 6.1 Hz - 43.3 kHz; -3 dB: <1 Hz - 48 kHz
  • Frequency response fs = 48 kHz: -0.05 dB: 5.5 Hz - 22.8 kHz; -3 dB: <1 Hz - 24 kHz
  • Frequency response fs = 44.1kHz: -0.05 dB: 5 Hz - 20.1 kHz; -3 dB: <1 Hz - 22 kHz
  • Passband ripple: 96 kHz <0.015 dB; 48 kHz: <0.015 dB
  • Inter-channel phase difference : <0.03 degrees
  • Channel separation: 1kHz >125dB, 20 Hz - 20 kHz: >117 dB
  • Group delay (input to AES3 output): 20/fs

Product Specifications

Condition New
Chassis Module
Channels 8-Channel
Input Connectors Analog XLR
Maximum Sampling Rate 192 kHz

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Prism Sound 8C-AD 8-Channel A/D Module for ADA-8XR Interface . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.