power amplifier

I have for sale the amplifier that Steve Hoffman has been using for his review. MSRP of the amp is $4300. The sale price is $3500 with free shipping to the USA. I will also ship it anywhere else in the world at an additional cost. A 1-year warranty is included with the purchase.

I have a NAD D7050 which will not turn on while connected. In the documentation the list of parts I see a fuse 15A/250V. Does anyone know where this fuse is located?

Hi, Newbie here and looking for some advices for upgrading my 2.1 stereo system. I learned a lot from Amir's tutorials and others' posts. Wonderful forum here! Current system: a pair of KEF Q150, Sony STR-DH190 power amp, Bluesound Node 2i, and RSL Speedwoofer 10S MKII. (I am considering to...

Asking $4000 plus shipping (from NYC) and, if relevant, PayPal fee. Local p/u by arrangement. Excellent condition (As-New except for dust). Purchased in August 2020, has worked flawlessly but now surplus to my needs. In original double box and includes accessories: Two detachable AC power cords...

Let me share a few basic measurements of the Arylic A50+ streaming amplifier. The amp is based on the TPA3116 chip and I bought mine together with the ACPWorkbench Tuning Tool app for $152.32 total (shipped to EU) during the holiday sale. A few pictures of the amp: The included laptop-style...

Is anyone out there using their PA3s single ended? I'm curious if anyone can speak to any differences in quality/power when feeding the PA3s from an RCA input. I'm planning on pairing a PA3s with an unbalanced DX3 Pro+, and I'm wondering if it would be worth it to pick up a balanced dac.

Let me share a few basic measurements of the Sabaj A1 (new 2022 version) stereo integrated amplifier. The amp is based on the popular Infineon MA12070 chip and I bought mine for $68.99 (total, shipped to EU). A few pictures of the amp: As you can see the power brick (Sabaj branded, 24V /...

I just built a power amplifier module based on the Trimodal Power Amplifier by Douglas Self. This is part of building a complete integrated amplifier. I'm now working on the preamplifier, power supply, PHONO preamp, input switching, speaker protection and maybe remote control unit. For those not...

There are requests to record outputs of two different power amplifiers and prepare a listening test with such recorded files. I have decided to answer the challenge again and recorded files from 2 different class AB amplifiers, loaded with real speakers. One of the amplifiers has about 6 times...

I need to buy three zones (so six channels, total) of clean power, at least 100 WPC into 8 ohms . The Monoprice Unity amp is 150 WPC into 8 ohms and is priced at $125 per channel. https://www.monoprice.com/product?p_id=31027 Does anybody know what modules it uses and/or legit specs? Are there...

Hi, I found this amp a couple of months ago for what seemed like a very good price. (270€ together with the AVP-8500 preamp which I immediately sold for 135€) I've been rather happy with it but it does produce a buzzing noise both on the speaker outputs and directly from the amp. At my typical...

I've been using the wonderful sounding Yamaha DSP-A2070 amp to drive a pair of Hifiman HE-6 headphones for the past few years and it has been great. Unfortunately the amp is getting really flaky and is near to giving up the ghost. I was going to pickup a Schiit Mjolnir and Gungnir stack but...

Just found one of these on eBay and had it delivered. http://www.rotel.com/product/rb-990bx Production range is from 1992-1997, and the serial numbers do not contain date stamping, nor did they track shipment info, so it's in a 5 year range. The fascinating part is that as one should do with...