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Triad 250W Rack Amp, Subwoofer Amp, Tested, Working.
End: 24.02. 2025 03:15:01 on Monday
- Condition: Used
- Price: 42.66 EUR

- Status: sold
- Item number: 267161834068
- Bids: 3
- Seller: jcox1234 (2345|100.0%)
- Seller information: non commercial
- Item location: Kirkland, Washington
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
here is a Triad 250W Mono Subwoofer amp. it was made in Portland, Oregon. its 17 1/4 wide (it doesnt have the rack ears, it would be 19 wide if it had the rack ears), 17 1/2 deep (18 3/4 deep if you include the speaker out) and 3 1/2 high. it weighs 19 pounds. you can see the controls in the pictures, they are hidden behind the front panel which can be removed with 4 screws. i include the allen wrench to remove the screws. the amp has an on/off switch in the back and a standby switch in the front. i tested the amp. it works fine and has a nice warm sound. cosmetically the amp is in very good condition as you can see in the pictures. the amp comes with the cables that you can see in the last picture. i used the Ebay shipping calculator so the shipping cost shown is the actual shipping cost. i didnt charge anything for the packing materials. USA bidders only, USA FedEx ground shipping only, pay through Ebay or with PayPal, thanks.
Triad InRoom OmniSub 8 - Powered Subwoofer
End: 23.02. 2025 21:06:33 on Sunday
- Condition: Used
- Price: 239.12 EUR

- Status: unsold
- Item number: 396217180307
- Bids: 0
- Seller: chba5255 (32|94.4%)
- Seller information: Commercial (with base shop)
- Item location: Spirit Lake, Iowa
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Used Omni sub eight triad
TRIAD 350 DSPv2 - 250w 1-Channel Subwoofer Amplifier Includes Remote
End: 23.02. 2025 18:14:22 on Sunday
- Condition: Used
- Price: 52.61 EUR

- Status: sold
- Item number: 226605656200
- Bids: 2
- Seller: angeman2009 (42|0.0%)
- Seller information: non commercial
- Item location: Longwood, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Good Condition - Pulled working from system and tested - Includes Remote
TRIAD 350 DSPv2 - 250w 1-Channel Subwoofer Amplifier Includes Remote
End: 18.02. 2025 18:14:07 on Tuesday
- Condition: Used
- Price: 52.55 EUR

- Status: unsold
- Item number: 226596861329
- Bids: 0
- Seller: angeman2009 (42|0.0%)
- Seller information: non commercial
- Item location: Longwood, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Good Condition - Pulled working from system and tested - Includes Remote
Triad InRoom OmniSub 8 - Powered Subwoofer
End: 16.02. 2025 21:06:03 on Sunday
- Condition: Used
- Price: 237.9 EUR

- Status: unsold
- Item number: 396193553242
- Bids: 0
- Seller: chba5255 (31|94.1%)
- Seller information: Commercial (with base shop)
- Item location: Spirit Lake, Iowa
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Used Omni sub eight triad
Triad Standalone Subwoofer RackAmp 300
End: 13.02. 2025 22:58:51 on Thursday
- Condition: Used
- Price: 149.04 EUR

- Status: sold
- Item number: 335754502898
- Seller: avsolutionsguy (1599|99.3%)
- Seller information: Commercial (with base shop)
- Item location: Tustin, California
- Ships to: US
- Shipping: 35,0 EUR
- on EBAY
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Description
AI 5753 PLEASE READGood Working ConditionNOTE: 1 Rack Ear is MissingIncludes the Amp and a Power CordSee Pictures and Details Triad Standalone Subwoofer RackAmp 300 Triads RackAmp 300 offers powerful Triad RackAmp Class A/B performance with near Class D efficiency for superior bass, easy setup, quick calibration and control. RackAmps are specifically designed to pair with Triad subwoofers to produce impressive, explosive bass with movies, as well as nuanced, detailed, and consistent bass with music. You can hear the difference. The RackAmp 300 delivers 300 watts to the 4 ohm load of a Triad standard subwoofer.
Triad RackAmp 700 DSP 700 Watt Subwoofer Amplifier
End: 13.02. 2025 18:53:44 on Thursday
- Condition: Used
- Price: 309.58 EUR

- Status: sold
- Item number: 316078261892
- Seller: eabrett (13|100.0%)
- Seller information: non commercial
- Item location: Conroe, Texas
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Tested. Includes power cord and remote control. Experience the pinnacle of audio performance with the Triad RackAmp 700 DSP, a 700-watt subwoofer amplifier designed to deliver an unparalleled bass response. Crafted by Triad, a brand synonymous with quality and innovation, this digital amplifier is tailored for those who demand precision and power in their audio setup.The RackAmp 700 comes in a striking gold color, adding a touch of elegance to your gear collection. Its advanced DSP technology ensures a sleek, accurate sound that will elevate your listening experience. Whether for home use or professional audio applications, this amplifier is engineered to impress.
TRIAD 350 DSPv2 - 250w 1-Channel Subwoofer Amplifier Includes Remote
End: 13.02. 2025 18:13:51 on Thursday
- Condition: Used
- Price: 52.34 EUR

- Status: unsold
- Item number: 226588609014
- Bids: 0
- Seller: angeman2009 (42|0.0%)
- Seller information: non commercial
- Item location: Longwood, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Good Condition - Pulled working from system and tested - Includes Remote
TRIAD 350 DSP v2 250W Rack Amp Subwoofer Amplifier perfect working condition
End: 12.02. 2025 03:12:54 on Wednesday
- Condition: Used
- Price: 128.87 EUR

- Status: sold
- Item number: 326378922035
- Seller: brickaudio77 (6947|98.5%)
- Seller information: Commercial (with base shop)
- Item location: Little Neck, New York
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
TRIAD 350 DSP v2 250W Rack Amp Subwoofer Amplifier perfect working condition.
TRIAD 250W RackAmp Subwoofer Amplifier
End: 10.02. 2025 22:52:56 on Monday
- Condition: Used
- Price: 105.63 EUR

- Status: sold
- Item number: 226572866732
- Seller: stennz (205|100.0%)
- Seller information: non commercial
- Item location: Belgrade, Montana
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Includes one used Triad 250 Watt Subwoofer Amplifier in good, working condition. Does not include power cable or accessories. See last photo for full list of specifications.
Triad InRoom OmniSub 8 - Powered Subwoofer
End: 09.02. 2025 21:05:42 on Sunday
- Condition: Used
- Price: 241.67 EUR

- Status: unsold
- Item number: 396169617308
- Bids: 0
- Seller: chba5255 (30|93.8%)
- Seller information: Commercial (with base shop)
- Item location: Spirit Lake, Iowa
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Used Omni sub eight triad
Triad RackAmp 350 DSP v2 1-Channel 250 Watt Subwoofer Amplifier
End: 08.02. 2025 18:14:28 on Saturday
- Condition: Used
- Price: 48.47 EUR

- Status: unsold
- Item number: 226587123421
- Bids: 0
- Seller: angeman2009 (42|0.0%)
- Seller information: non commercial
- Item location: Longwood, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
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Description
Includes Remote & Power Cable - Tested - Pulled Working from System
TRIAD Design Powered Subwoofer Speaker
End: 08.02. 2025 03:09:57 on Saturday
- Condition: Used
- Price: 237.9 EUR

- Status: unsold
- Item number: 167255814524
- Seller: don_6794 (88|97.4%)
- Seller information: non commercial
- Item location: Sammamish, Washington
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Everything works properlyA previously used item that may exhibit signs of cosmetic wear, but is fully operational and functions as intended.Made In USA
Triad OMNI SUB12 Subwoofer 12"
End: 07.02. 2025 07:11:54 on Friday
- Condition: Used
- Price: 289.31 EUR

- Status: sold
- Item number: 146361326022
- Bids: 1
- Seller: didelga_52 (34|97.2%)
- Seller information: non commercial
- Item location: San Diego, California
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Triad OMNI SUB12 Subwoofer 12
Triad RackAmp 350 DSP V2 Subwoofer Amplifier / Amp 50/60Hz
End: 07.02. 2025 00:35:40 on Friday
- Condition: Used
- Price: 96.14 EUR

- Status: sold
- Item number: 365372039795
- Seller: littlehiddentreasuresllc (6543|99.4%)
- Seller information: Commercial (with base shop)
- Item location: Federal Way, Washington
- Ships to: US
- Shipping: 34,99 EUR
- on EBAY
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Description
Just purchased a large audio collection/ recording studio. All items were in use up until a few months back. Previous owner states everything should be working but, please if you run into any kind of issues please reach out. We are happy to accept a return or work with you on any other kind of solution. sold as is. everything you see in the pictures is what is included in this lot. photos are the best description. please look at all pictures closely before purchasing. we will document any damage the best we can but the photos will always be the best way to exam the item. items may need a more in depth cleaning. we will do our best to clean every item, although sometimes we can’t do a full thorough clean. message us for additional photos or questions. we are a large store please allow up to 3 business days for your item to go out. we of course will get them out as fast as we can. if you ever have a concern, please message us before leaving negative feedback. we will help resolve whatever issue you are having. we try very hard to provide good communication and always strive for everyone to have a positive experiences!!
Triad RackAmp 300 - Subwoofer Amplifier *NEW*
End: 06.02. 2025 00:30:45 on Thursday
- Condition: New
- Price: 190.95 EUR

- Status: sold
- Item number: 176813526687
- Bids: 1
- Seller: mmus8617 (61|100.0%)
- Seller information: non commercial
- Item location: Miami, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Description: Unlock premium audio performance with the Triad RackAmp300, a high-efficiency, professional-grade 300W rack-mountable power amplifier. Whether you’re outfitting your home studio or setting up for a live sound event, this amplifier delivers superior power, clarity, and reliability. The Triad RackAmp300 is designed for audiophiles, sound engineers, and musicians who demand top-tier performance. Key Features:300W Power Output: Reliable and consistent power for professional audio applications.Rack-Mountable Design: Fits seamlessly into standard 19 racks for a clean, organized setup.High-Efficiency Cooling: Ensures long-lasting performance with minimal heat buildup.Versatile Compatibility: Ideal for use with speakers, mixers, PA systems, and more.Lightweight and Compact: Easy to transport without sacrificing performance. Specifications:Output Power: 300W at 4?, 200W at 8?Impedance Range: 4? to 8?Frequency Response: 20Hz - 20kHz (+/- 0.5dB)Total Harmonic Distortion: <0.05%Signal-to-Noise Ratio: >90dBInputs: Balanced XLR, 1/4 TRSCooling: Thermal protection with fan-assisted airflowDimensions: Standard 19” rackmount, 1U heightWeight: Lightweight for portability without compromising power Why Buy the Triad RackAmp300?Perfect for Professionals: Whether you’re running sound for events, recording, or in a rehearsal space, the Triad RackAmp300 ensures smooth, powerful sound reproduction every time.Durable Construction: Built to last with high-quality components, ensuring that you can rely on this amplifier for years to come.Silent Operation: The cooling system is designed to operate quietly, ensuring no distracting fan noise during performances or sessions. What’s Included:Triad RackAmp300 Power Amplifier (Brand New)Power CordUser Manual
Triad InRoom OmniSub 8 - Powered Subwoofer
End: 02.02. 2025 21:05:29 on Sunday
- Condition: Used
- Price: 240.49 EUR

- Status: unsold
- Item number: 396153756137
- Bids: 0
- Seller: chba5255 (26|91.7%)
- Seller information: Commercial (with base shop)
- Item location: Spirit Lake, Iowa
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Used Omni sub eight triad
Triad OMNI SUB12 Subwoofer 12"
End: 31.01. 2025 07:11:46 on Friday
- Condition: Used
- Price: 287.59 EUR

- Status: unsold
- Item number: 146349079369
- Bids: 0
- Seller: didelga_52 (31|97.0%)
- Seller information: non commercial
- Item location: San Diego, California
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Triad OMNI SUB12 Subwoofer 12
TRIAD 250W RackAmp Subwoofer Amplifier
End: 30.01. 2025 05:27:20 on Thursday
- Condition: Used
- Price: 104.67 EUR

- Status: sold
- Item number: 226452789457
- Seller: stennz (205|100.0%)
- Seller information: non commercial
- Item location: Belgrade, Montana
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Includes one used Triad 250 Watt Subwoofer Amplifier in good, working condition. Does not include power cable or accessories. See last photo for full list of specifications. Another identical amplifier is available for purchase. Contact me for a 10% discount off the original purchase price if you purchase both.
Triad RackAmp 300 - Subwoofer Amplifier *NEW*
End: 30.01. 2025 00:30:36 on Thursday
- Condition: New
- Price: 190.98 EUR

- Status: unsold
- Item number: 176802706577
- Bids: 0
- Seller: mmus8617 (61|100.0%)
- Seller information: non commercial
- Item location: Miami, Florida
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Description: Unlock premium audio performance with the Triad RackAmp300, a high-efficiency, professional-grade 300W rack-mountable power amplifier. Whether you’re outfitting your home studio or setting up for a live sound event, this amplifier delivers superior power, clarity, and reliability. The Triad RackAmp300 is designed for audiophiles, sound engineers, and musicians who demand top-tier performance. Key Features:300W Power Output: Reliable and consistent power for professional audio applications.Rack-Mountable Design: Fits seamlessly into standard 19 racks for a clean, organized setup.High-Efficiency Cooling: Ensures long-lasting performance with minimal heat buildup.Versatile Compatibility: Ideal for use with speakers, mixers, PA systems, and more.Lightweight and Compact: Easy to transport without sacrificing performance. Specifications:Output Power: 300W at 4?, 200W at 8?Impedance Range: 4? to 8?Frequency Response: 20Hz - 20kHz (+/- 0.5dB)Total Harmonic Distortion: <0.05%Signal-to-Noise Ratio: >90dBInputs: Balanced XLR, 1/4 TRSCooling: Thermal protection with fan-assisted airflowDimensions: Standard 19” rackmount, 1U heightWeight: Lightweight for portability without compromising power Why Buy the Triad RackAmp300?Perfect for Professionals: Whether you’re running sound for events, recording, or in a rehearsal space, the Triad RackAmp300 ensures smooth, powerful sound reproduction every time.Durable Construction: Built to last with high-quality components, ensuring that you can rely on this amplifier for years to come.Silent Operation: The cooling system is designed to operate quietly, ensuring no distracting fan noise during performances or sessions. What’s Included:Triad RackAmp300 Power Amplifier (Brand New)Power CordUser Manual
TRIAD In Room Bronze IN-ROOM Woofer Subwoofer
End: 28.01. 2025 03:00:37 on Tuesday
- Condition: Used
- Price: 262.72 EUR

- Status: sold
- Item number: 256681731731
- Seller: littlehorsevintage (1085|99.5%)
- Seller information: Commercial (with base shop)
- Item location: Louisville, Colorado
- Ships to: US
- Shipping: 40,0 EUR
- on EBAY
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Description
TRIAD In Room Bronze IN-ROOM Woofer Subwoofer Nice! Have a wonderful day!
Triad RackAmp 300 DSP v1.5 Subwoofer Amplifier / AMP w/ Rack Ears
End: 26.01. 2025 21:36:26 on Sunday
- Condition: For parts or not working
- Price: 94.36 EUR

- Status: sold
- Item number: 186559853971
- Seller: arg-tech (12810|99.8%)
- Seller information: Commercial (with base shop)
- Item location: Goffstown, New Hampshire
- Ships to: US
- Shipping: 29,99 EUR
- on EBAY
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Description
Unlock the potential of your audio setup with the Triad RackAmp 300 DSP v1.5 Subwoofer Amplifier! This 300W Class D mono amplifier offers high-efficiency performance, perfect for home theater systems. Designed for easy rack installation with included rack ears, it features a compact 1RU profile and EnergyStar compliance for energy efficiency. While the front panel is unresponsive, it still passes signal, making it a valuable DIY project for enthusiasts. Enjoy versatile input options (RCA and Speaker level) and user-selectable presets for tailored sound. Ideal for parts or repair, this amplifier merges high-quality audio with practicality. Dont miss out! Triad RackAmp 300 DSP v1.5 Subwoofer Amplifier / AMP w/ Rack EarsDescription This item is being sold as-is For Parts/Repair. The amp passes signal however the front panel controls are unresponsive. Does not include remote. Great cosmetic condition. Whats Included: 1x Triad RackAmp 300 DSP v1.5 Subwoofer Amplifier / AMP w/ Rack Mounts Does not include any additional cables, parts, or accessories. Specifications: Features 300W (4 ohm) mono amplifier Easy to set up/control Compact and efficient—only 10” deep Rack friendly at only 1RU (rack ears included) EnergyStar compliant and energy efficient Low heat generation allows for stacking in a rack or cabinet NRTL certified to UL, CE, Ctick, FCC, RoHS, and 1/2 Watt EnergyStar compliant Three user selectable Product Preset Modes: Mini, Bronze, Flex Input options include: RCA and Speaker level Volume and crossover controls Line level output Multiple power-on methods: Auto-sense, 12V Trigger, Manual On/Off Watts Per Channel 201-300W Enclosure Stamped steel enclosure with machined anodized aluminum face plate Power Output 300 Watts continuous into 4 ohms (Mono) Total Harmonic Distortion (THD) Frequency Response 10 Hz to 300 Hz Volume Control Variable Crossover Frequency Variable 70 Hz to 200 Hz + LFE Phase Adjustment Variable Power On Auto Sense, Constant On/Off, 12v Trigger (5V ~ 20V range) Power Requirements 120V / 230V selectable Sub Amp Type: Class D RackAmp Power: 300W Dimensions (W x H x D) 16 7/8 x 1 3/4 x 10 1/4 (42.8 x 4.4 x 26 cm) Weight Product weight: 7 lb (3.25 kg) Shipping Weight (each): 9.5 lb (4.25 kg) Payment Payment via PayPal is expected within 2-days after the winning bid.We only accept bids from US bidders with confirmed PayPal addresses and only accept PayPal as the form of payment. Returns Returns are not accepted for items listed as For Parts/Not Working Please review all photos carefully as they are part of the description per eBay policy. Shipping ARG-Tech directly only ships to the United States. All international shipments are processed through eBays Global Shipping Program. We take pride in packing items carefully to ensure safe arrival. We ship promptly, usually same or next day after PayPal confirmation. We offer combined shipping for customers who purchase more than one item from us at a time. If two items cannot be safely packaged together we reserve the right to ship them separately. If you have any special requirements or questions regarding shipping, please contact us before buying. Our business hours are Monday – Friday 7AM-4:30PM EST Thanks for viewing! Please check out our other items!
Triad InRoom OmniSub 8 - Powered Subwoofer
End: 26.01. 2025 21:04:58 on Sunday
- Condition: Used
- Price: 237.69 EUR

- Status: unsold
- Item number: 396135527139
- Bids: 0
- Seller: chba5255 (25|90.9%)
- Seller information: Commercial (with base shop)
- Item location: Spirit Lake, Iowa
- Ships to: US
- Shipping: EUR
- on EBAY
-
Description
Used Omni sub eight triad
Triad OMNI SUB12 Subwoofer 12"
End: 24.01. 2025 07:12:07 on Friday
- Condition: Used
- Price: 436.28 EUR

- Status: unsold
- Item number: 146314293552
- Seller: didelga_52 (34|97.2%)
- Seller information: non commercial
- Item location: San Diego, California
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
-
Description
Triad OMNI SUB12 Subwoofer 12
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