Surround sound to pro amp

not a wizard

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My AV System  
Preamp, Processor or Receiver
Biamp Audiaflex
Main Amp
Crown CTs 4200
Front Speakers
Renkus-Heinz
Surround Speakers
Boss
Subwoofers
none
Does anyone know how to convert digital signals, such as HDMI, to multiple analog signals for surround sound? The pro amplifiers do not have the surround sound decoder built-in. Is it possible to use a pro amplifier for a surround sound system?
 

Wayne A. Pflughaupt

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My AV System  
Preamp, Processor or Receiver
Yamaha RX-Z9 A/V Receiver
Universal / Blu-ray / CD Player
Pioneer BDP-23FD Blu Ray Player
Front Speakers
Canton Karat 920
Center Channel Speaker
Canton Plus D
Surround Speakers
Canton Plus D
Surround Back Speakers
Realistic Minimus 7 (front EFX speakers)
Front Height Speakers
Yamaha YDP2006 Digital Parametric EQ (front mains)
Rear Height Speakers
Yamaha YDP2006 Digital Parametric EQ (subs)
Subwoofers
Adcom ACE-515 (for power management)
Video Display Device
Yamaha DT-2 (digital clock display)
Screen
Audio Control R130 Real Time Analyzer
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Stock Yamaha Remote
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Pioneer PDP-6010FD 60" Plasma TV
It requires a processor to decode a Dolby Digital or DTS signal and convert it to an analog signal that a professional amplifier could use as an input. There are stand-alone processors that can do it, but typically an audio-video receiver (AVR) is the most economical method. Most AVRs have their own amplifiers built-in, but also have pre-amp outputs that could be used to send signal to outboard amplifiers.

Regards,
Wayne
 

not a wizard

New Member
Thread Starter
Joined
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My AV System  
Preamp, Processor or Receiver
Biamp Audiaflex
Main Amp
Crown CTs 4200
Front Speakers
Renkus-Heinz
Surround Speakers
Boss
Subwoofers
none
I have thought about using a receiver in some form. However, how does
One apply DSP to the surround signals? Thanks!
 

Wayne A. Pflughaupt

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May 21, 2017
Messages
394
Location
Corpus Christi, TX
My AV System  
Preamp, Processor or Receiver
Yamaha RX-Z9 A/V Receiver
Universal / Blu-ray / CD Player
Pioneer BDP-23FD Blu Ray Player
Front Speakers
Canton Karat 920
Center Channel Speaker
Canton Plus D
Surround Speakers
Canton Plus D
Surround Back Speakers
Realistic Minimus 7 (front EFX speakers)
Front Height Speakers
Yamaha YDP2006 Digital Parametric EQ (front mains)
Rear Height Speakers
Yamaha YDP2006 Digital Parametric EQ (subs)
Subwoofers
Adcom ACE-515 (for power management)
Video Display Device
Yamaha DT-2 (digital clock display)
Screen
Audio Control R130 Real Time Analyzer
Remote Control
Stock Yamaha Remote
Other Equipment
Pioneer PDP-6010FD 60" Plasma TV
Most AVRs these days do that automatically.

Regards,
Wayne A. Pflughaupt
 

not a wizard

New Member
Thread Starter
Joined
Jun 9, 2020
Messages
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My AV System  
Preamp, Processor or Receiver
Biamp Audiaflex
Main Amp
Crown CTs 4200
Front Speakers
Renkus-Heinz
Surround Speakers
Boss
Subwoofers
none
My friend likes to control his DSP precisely. He wrote his own program to help his analysis and processing. He generally uses about 64 freq EQ. I’m also going to have him help me EQ my signals. So there lies the problem. Whether to have control over sound processing or give up control and have surround sound!!
 

Todd Anderson

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Denon X8500H
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Emotiva XPA-5
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Emotiva XPA Gen3 2.8 multichannel amp
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VSX21-THX
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OPPO UDP-203, Panasonic UB9000
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SVS Ultra Towers
Center Channel Speaker
SVS Ultra Center
Surround Speakers
SVS Ultra Surround
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SVS Ultra Bookshelf
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SVS Prime Elevation x4 (Top Front, Top Mid-Front)
Rear Height Speakers
SVS Prime Elevation x4 (Top Middle, Top Rear)
Subwoofers
dual SVS SB16s + dual PSA XS30s
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Behringer 1124p; Aura Bass Shaker Pros; SuperSub X
Video Display Device
JVC NX7
Screen
Carada Cine-White 0 gain
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LG Electronics 65-inch B6 OLED, Sony 65-inch X900F
The processing power of decent equipment, be it an AVR or standalone DAC, is so good these days, I'd go for the surround sound. The better the processor, the more control you have over the end result anyway. But, each to their own!
 

RDaneel2

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Yamaha CX-A5200
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Nord DM1200 Signature
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Panasonic UB9000
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Magneplanar 3.7i
Subwoofers
Rythmik F12SE (2)
Video Display Device
Samsung Q90R 65"
Just catching up on the week's posts...

I was faced with the same question about 2 years ago - not really knowing if there is a solution to this problem, or what to call it if it exists... the functionality you are looking for is [these days] called a "pre/pro" - short for "preamp/processor".

This family of devices is essentially a modern AVR ("Audio/Video Receiver") - but without the amplification being built-in.

Basically, yes, you do need something that is able to decode the various formats of multi-channel material - as well as doing some potentially complex DSP work for you, ranging from simple "tone controls" to extremely sophisticated "room correction" equalization.

Once you have some or all of this in place, then you get to select your amplifiers... these of course come in 2-channel form (for normal Front Left and Front Right), 3-channel (adding a Center), possibly 4-channel just for your overheads in a full "immersive sound" setup, as well as various Rear and Side surround channels.

If you will be, say, using your home theater setup for at least semi-serious music listening also, then you could do something like using a higher-end 2 channel amp (and speakers) for your Fronts, and possibly more "average" amplification for the rest... but this discussion can turn into a "religious" war pretty quickly (opinions diverge). ;)

Good luck!
 
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