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2.1ch Audio Setup Help

KingPizza
By KingPizza
in Audio
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I'm currently on a mission to completely rework my PC setup, and the only task left is audio. Audio is the one thing I don't know much about, so I need guidance on the best way to proceed. Here are the audio devices I have:

  • 2 T15 Polk Audio Bookshelf Speaker
  • 1 Monoprice 12in 150w Powered Subwoofer
  • Fosi Audio BT30D 2.1ch Amplifier

I have the speakers and sub connected to the amp, then plugged in to the PC. This setup works fine. However, I got a new TV to hang as a "third" monitor for movies, and while the TV is connected to the PC the audio is of course fine, but I want to connect the TV directly to the amp to watch movies when the PC is off. When I connect them using a 3.5mm to RCA cable, there's very loud noise and it's completely unusable.

 

Do I just need a better-quality amplifier to reduce the noise? (If so, which amp is recommended). Or do I have a sub-optimal setup to begin with? Any recommendations are appreciated.

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Unless your TV has an optical out or you have some sort of HDMI digital receiver, that 3.5mm to RCA adapter is about your only option. You can add an audio isolation module to help help circumvent the issue. However, it still won't have the best of sound quality using that output. It's not a clean source.

[Main Desktop]

CPU: AMD Ryzen 5 5600X  GPU: EVGA RTX 3070 Ti (FTW3 Ultra)  MOBO: MSI Gaming Pro Carbon (X470)  RAM: G.SKILL Ripjaws V DDR4-3600 CL16 (2x8GB)

COOLER: Arctic LiquidFreezer II 280 STORAGE: G.SKILL Phoenix FTL 240GB SSD, Crucial MX500 1TB SSD, Toshiba 2TB HDD, Seagate 4TB HDD

PSU: EVGA GQ-1000W 80+ Gold  CASE: The MESHMOD v1.0 (Custom Deepcool Matrexx 70 chassis)  MONITOR: AOC 24G2 144Hz (IPS) 

MOUSE: Logitech G502 HERO (wired)  KEYBOARD: Rosewill K81 RGB (Kailh Brown)  HEADPHONES: HiFiMan Ananda, Drop x Sennheiser HD6XX

IEMS: 7Hz Timeless, Tin Audio T2, Blon BL-03, Samsung/AKG Galaxy Buds Pro  STUDIO MONITORS: Mackie MR524, Mackie MRS10  MIC: NEAT Worker Bee  

INTERFACE: Focusrite Scarlett Solo  AMPLIFIER: SMSL SP200 THX AAA-888, XDUOO XD-05 Basic  DAC: SMSL Sanskrit 10th MKII (upgraded AK4493 Version)

WHEEL: Logitech G29 + Logitech G Shifter

 

[Stream Encoder]

CPU: AMD FX-9590  GPU: Sapphire R9 390X (Tri-X OC)  MOBO: ASUS Sabertooth R2.0 (AM3+)  RAM: G.SKILL Ripjaws X DDR3-1866 (2x8GB)

COOLER: EVGA CLC 280 PSU: MSI A750GF 80+ Gold CASE: Phanteks P400A Digital

 

[Garage]

CAR: 2003 Honda Civic Coupe LX (EM2)  ENGINE: D17A1, planned K20A2 swap  INTAKE: DIY Solutions Short RAM  HEADERS: Motor1 4-2-1 with Cat-Delete

EXHAUST: Yonaka 2.5" Cat-Back with 3.5" tip (YMCB-CIV0105)  COILOVERS: MaXpeedingrods adjustable  RIMS: Core Racing Concept Seven Alloys (15x6.5)

RECEIVER: Kenwood DPX304MBT  SOUND DEADENING: Damplifier Pro Deadening Mats  SOUND DAMPENING: Custom solution, layers of thick insulation

DOOR SPEAKERS: Kenwood KFC-P710PS 6.5" Components  WINDOW LEDGE SPEAKERS: Kenwood KFC-6996PS 6x9" 5-Ways

 

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  • Author
20 hours ago, OfficialTechSpace said:

Unless your TV has an optical out or you have some sort of HDMI digital receiver, that 3.5mm to RCA adapter is about your only option. You can add an audio isolation module to help help circumvent the issue. However, it still won't have the best of sound quality using that output. It's not a clean source.

The TV does have optical out. The 3.5mm to RCA is only used because the amp doesn't accept optical.

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18 minutes ago, KingPizza said:

The TV does have optical out. The 3.5mm to RCA is only used because the amp doesn't accept optical.

In that case you'd take that optical out, feed that into a DAC, and then output balanced or unbalanced cables from there to the amp. That'd be the ideal setup, and a much cleaner output.

[Main Desktop]

CPU: AMD Ryzen 5 5600X  GPU: EVGA RTX 3070 Ti (FTW3 Ultra)  MOBO: MSI Gaming Pro Carbon (X470)  RAM: G.SKILL Ripjaws V DDR4-3600 CL16 (2x8GB)

COOLER: Arctic LiquidFreezer II 280 STORAGE: G.SKILL Phoenix FTL 240GB SSD, Crucial MX500 1TB SSD, Toshiba 2TB HDD, Seagate 4TB HDD

PSU: EVGA GQ-1000W 80+ Gold  CASE: The MESHMOD v1.0 (Custom Deepcool Matrexx 70 chassis)  MONITOR: AOC 24G2 144Hz (IPS) 

MOUSE: Logitech G502 HERO (wired)  KEYBOARD: Rosewill K81 RGB (Kailh Brown)  HEADPHONES: HiFiMan Ananda, Drop x Sennheiser HD6XX

IEMS: 7Hz Timeless, Tin Audio T2, Blon BL-03, Samsung/AKG Galaxy Buds Pro  STUDIO MONITORS: Mackie MR524, Mackie MRS10  MIC: NEAT Worker Bee  

INTERFACE: Focusrite Scarlett Solo  AMPLIFIER: SMSL SP200 THX AAA-888, XDUOO XD-05 Basic  DAC: SMSL Sanskrit 10th MKII (upgraded AK4493 Version)

WHEEL: Logitech G29 + Logitech G Shifter

 

[Stream Encoder]

CPU: AMD FX-9590  GPU: Sapphire R9 390X (Tri-X OC)  MOBO: ASUS Sabertooth R2.0 (AM3+)  RAM: G.SKILL Ripjaws X DDR3-1866 (2x8GB)

COOLER: EVGA CLC 280 PSU: MSI A750GF 80+ Gold CASE: Phanteks P400A Digital

 

[Garage]

CAR: 2003 Honda Civic Coupe LX (EM2)  ENGINE: D17A1, planned K20A2 swap  INTAKE: DIY Solutions Short RAM  HEADERS: Motor1 4-2-1 with Cat-Delete

EXHAUST: Yonaka 2.5" Cat-Back with 3.5" tip (YMCB-CIV0105)  COILOVERS: MaXpeedingrods adjustable  RIMS: Core Racing Concept Seven Alloys (15x6.5)

RECEIVER: Kenwood DPX304MBT  SOUND DEADENING: Damplifier Pro Deadening Mats  SOUND DAMPENING: Custom solution, layers of thick insulation

DOOR SPEAKERS: Kenwood KFC-P710PS 6.5" Components  WINDOW LEDGE SPEAKERS: Kenwood KFC-6996PS 6x9" 5-Ways

 

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