Hi, I recently order a Dayton Audio UM12-22 Ultimax to built a seal sub with 2 cubit ft volume. I am currently using a SVS PC12-NSD for home theater and the new seal sub built will be primarily use for music. I listen to music at moderate volume and sometimes at loud volumes but for a short while only.
I am looking to buy a subwoofer amp to power the seal sub and came across a few from China. Below are a few amp under consideration and I do not plan to spend a lot on the amp as its my secondary setup.
One of the is a cheap plate amp that is rated 1000w.
Specifications:
Upgraded version: Add phase adjustment. Automatic standby. 8 tube linkage
Rated output power is 1000W 8 ohms, (you can use it when you connect the speaker directly)
Features: 1. It has been debugged and installed, - it is recommended to push the 8-18 inch 500W speaker) (equipped)
2. Adjustable frequency (40-180), volume adjustment,
3. Full relay protection: start-up delay, DC output, short circuit of the speaker, etc.
4. Advantages of DC optimization system: Provide continuous offset voltage zeroing control for the amplifier, control the DC output potential of the amplifier, expand the low frequency response of the amplifier, and reduce the phase distortion of low frequency signals.
5. The circuit board uses the original disassembled tube, and the design layout is reasonable and the signal-to-noise ratio is extremely high (no noise can be heard without the audio input line).
size:
Net weight: about 3.2 kg,
Gross weight: 3.6 kg,
Main components: 4 pairs of large tube power audio dedicated tube
4 large electrolysis, 1 high-power toroidal transformer.
Price : USD60 but need additional USD20 for external housing cabinet.
Anyone have any experience with this kind of amp? Can it drive the UM12-22?
https://img.alicdn.com/imgextra/i3/131233633/O1CN01bvSGPo1chxVTKtYSa_!!131233633.png
I am looking to buy a subwoofer amp to power the seal sub and came across a few from China. Below are a few amp under consideration and I do not plan to spend a lot on the amp as its my secondary setup.
One of the is a cheap plate amp that is rated 1000w.
Specifications:
Upgraded version: Add phase adjustment. Automatic standby. 8 tube linkage
Rated output power is 1000W 8 ohms, (you can use it when you connect the speaker directly)
Features: 1. It has been debugged and installed, - it is recommended to push the 8-18 inch 500W speaker) (equipped)
2. Adjustable frequency (40-180), volume adjustment,
3. Full relay protection: start-up delay, DC output, short circuit of the speaker, etc.
4. Advantages of DC optimization system: Provide continuous offset voltage zeroing control for the amplifier, control the DC output potential of the amplifier, expand the low frequency response of the amplifier, and reduce the phase distortion of low frequency signals.
5. The circuit board uses the original disassembled tube, and the design layout is reasonable and the signal-to-noise ratio is extremely high (no noise can be heard without the audio input line).
size:
Net weight: about 3.2 kg,
Gross weight: 3.6 kg,
Main components: 4 pairs of large tube power audio dedicated tube
4 large electrolysis, 1 high-power toroidal transformer.
Price : USD60 but need additional USD20 for external housing cabinet.
Anyone have any experience with this kind of amp? Can it drive the UM12-22?
https://img.alicdn.com/imgextra/i3/131233633/O1CN01bvSGPo1chxVTKtYSa_!!131233633.png
Last edited:
The other one is a IRS2092 mono amp. Thhe price is US$160. It's rated down to 2ohms 1000w. Will this amp be a better choice? Anyone can share any info base on the pictures below?
This is the description from google translate.
Dedicated production, perfect sound quality, strong driving force, super first-class low frequency response as low as 5HZ, wide sound field, the effect does not have to doubt that the sound is freely swaying, the low frequency is flexible and dynamic first-class, and it is also one of the best in the digital power amplifier rankings. Welcome old The audition, especially for customers who have floor-to-ceiling boxes, has more obvious effects.
The power amplifier is a single-channel design. Friends who need stereo need to take 2 sets. The size is 280MM*240*60mm. The bare metal weighs 3KG. The chassis is made of West Electric gray iron chassis. If you are looking for perfect appearance, you don’t need to buy it. If you have requirements for sound, this kind of price is higher than 2-3 times the price. The advantage is obvious. Some customers still have a higher and lower level than imported 10,000 yuan power amplifiers.
Power supply 200V-240V AC, shipped as a bare metal without any accessories
Input sensitivity Maximum 1.3V RMS Amplification factor 58
Distortion 0.017% 1KHZ 77W 4 ohm
Distortion 0.05% 1KHZ 213W 4 ohm
Distortion 0.13% 1KHZ 415W 4 ohm
0.17% distortion 1KHZ 542W 4 ohm
Distortion 0.6% 1KHZ 686W 4 ohm
Distortion 2.68% 1KHZ 815W 4 ohm
6.2% distortion 1KHZ 893W 4 ohm
According to the suggestions of many fans, the latest revision now has an independent power supply for the relays, so in addition to the main voltage (DC plus or minus 65V to plus or minus 80V) power supply remains unchanged, a set of AC single 12V power supply is added. Solve the switch machine problem.
Effective power 2 ohms 1000W, 4 ohms 900W, 8 ohms 600W, mono. Using IRFB4227 TO-3P big tube, the big tube sounds more powerful. If the stage is 8 ohms, two bridges can be used to achieve 2000W power output. 4 ohms are not suitable for bridge connection. 4 ohms load power is also very large, and there is no need to bridge.
The power amplifier board comes with temperature protection, speaker protection, midpoint DC protection, and can be bridged. The main chip adopts the original imported IRS2092 and IR company's digital audio dedicated MOSFET field effect tube IRFP4227 (large tube), the inductance adopts T130 large magnetic loop inductor (red and gray loop inductance made of imported materials from Germany), and the PCB circuit board adopts KB grade jun board. , The thickness of the board is 2mm, and the copper thickness of the board is 2/2oz. The core materials and layout are carefully selected and designed. I think the price/performance ratio is rarely matched on Taobao.
This is the description from google translate.
Dedicated production, perfect sound quality, strong driving force, super first-class low frequency response as low as 5HZ, wide sound field, the effect does not have to doubt that the sound is freely swaying, the low frequency is flexible and dynamic first-class, and it is also one of the best in the digital power amplifier rankings. Welcome old The audition, especially for customers who have floor-to-ceiling boxes, has more obvious effects.
The power amplifier is a single-channel design. Friends who need stereo need to take 2 sets. The size is 280MM*240*60mm. The bare metal weighs 3KG. The chassis is made of West Electric gray iron chassis. If you are looking for perfect appearance, you don’t need to buy it. If you have requirements for sound, this kind of price is higher than 2-3 times the price. The advantage is obvious. Some customers still have a higher and lower level than imported 10,000 yuan power amplifiers.
Power supply 200V-240V AC, shipped as a bare metal without any accessories
Input sensitivity Maximum 1.3V RMS Amplification factor 58
Distortion 0.017% 1KHZ 77W 4 ohm
Distortion 0.05% 1KHZ 213W 4 ohm
Distortion 0.13% 1KHZ 415W 4 ohm
0.17% distortion 1KHZ 542W 4 ohm
Distortion 0.6% 1KHZ 686W 4 ohm
Distortion 2.68% 1KHZ 815W 4 ohm
6.2% distortion 1KHZ 893W 4 ohm
According to the suggestions of many fans, the latest revision now has an independent power supply for the relays, so in addition to the main voltage (DC plus or minus 65V to plus or minus 80V) power supply remains unchanged, a set of AC single 12V power supply is added. Solve the switch machine problem.
Effective power 2 ohms 1000W, 4 ohms 900W, 8 ohms 600W, mono. Using IRFB4227 TO-3P big tube, the big tube sounds more powerful. If the stage is 8 ohms, two bridges can be used to achieve 2000W power output. 4 ohms are not suitable for bridge connection. 4 ohms load power is also very large, and there is no need to bridge.
The power amplifier board comes with temperature protection, speaker protection, midpoint DC protection, and can be bridged. The main chip adopts the original imported IRS2092 and IR company's digital audio dedicated MOSFET field effect tube IRFP4227 (large tube), the inductance adopts T130 large magnetic loop inductor (red and gray loop inductance made of imported materials from Germany), and the PCB circuit board adopts KB grade jun board. , The thickness of the board is 2mm, and the copper thickness of the board is 2/2oz. The core materials and layout are carefully selected and designed. I think the price/performance ratio is rarely matched on Taobao.