amplifiers

Tour of the McIntosh factory in Binghamton, New York. YouTube, 4 parts, about 20 minutes total. Built in 1956, this factory is located at 2 Chambers Street in Binghamton, NY. According to the video they only produce between 50-100 products a month. Part I - circuit board manufacturing...

Hi All, I'm completely new to the world of Hi FI Music and I have a question which is very possibly dumb. I have a Harman Kardon AVR151s receiver which delivers 75W per channel, as per their user manual. Currently I just have a very poor set up with 5 JBL satellites + a JBL Powered Sub...

I have a DIY project that will require a powerful amp (or two mono amps). This is for high fi speakers, not subwoofers. I am tempted to use two Monoprice 605030 amps in bridged mode. @4ohms they make about 500watts similar to using two of the Benchmark AHB2. The $ difference is significant. I...

I am new to the world of higher end quality audio equipment. I have a Carver power amp (class A, discrete channels, 100w) and preamp (1985) and they are driving Ohm Walsh Two speakers built in 1985. I now wish to move into the world of tube amplifiers. I have come across many online ads which...

Hello, I have some Starkrimson Mono Amp Module bare PCBs that I will give away for free, you just have to cover the cost of shipping. Please note that to receive the BOM for these boards you need to sign a non-disclosure agreement (NDA). Since I am giving these away for free, I request that...

Hello Folks, I started of my audio journey during pandemic with a Denon x4500h, JBL studio 530s , an Infinity RC263 center and a HSU Research VTF-15H MK2 sub. Over the past few months i wanted to take the hobby a bit further. Mostly, wanted to improve my AV side and create a dedicated 2 (&...

Hey everyone, thanks for reading in advance and thank you for any advice or insights you can throw my way. here’s my issue. I am currently using a Yamaha RXZ9 for a 7.2 system. My speakers are Bowers and Wilkins. 702S2 for the front 703’s for the side 704s for the rears and the larger 700...

Hello, I would like to compare two headphone amplifiers. How do I volume match? I have never done this and you can consider me an audio noob. I have no idea about internals or technicalities of audio equipment. My available equipment so far: -DAC: SMSL Sanskrit 10th MK2 -Amplifiers: SMSL SP200...

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...

Hey Guys, Any recommendations for a mini-stereo Amp (50-100 RMS per Channel) for home use with Auto on/off feature? Basically, I am looking for a small amp that will turn on when receiving a signal from RCA input.\ My goal is running my Rear Surround speaker wireless. Adding a transmitter on...

"Some of the high-end audio amplifiers' evaluations push my modus operandi into lab like mind-set, but there are a few of the amps that ignite the un-rational response while keeping my logical "processors" running happily. Totaldac Amp-1 is among this rare breed. Amp-1 can reveal and pull out...

I posted this on another thread but it is too interesting and deserves its own discussion. Dan is a legendary amp designer formerly from Krell and nowadays with his own company. Went from designing deeply based on measurements on the later Krell days to less reducing distortion and more...

Class D amplifiers have defined a new discipline in audio amplifier design and parameters, similarly as digital CD audio after its arrival in 1980-ties. After some time after its arrival, it was apparent that CD measurement methods would need something else and more than previous, purely analog...

Hello, I'm new here, although I've been lurking and reading the reviews for a few weeks now. I hope this is the right place to post this question, I saw other posts asking for recommendations, etc, so I thought this was as good a forum as any to ask. My question relates to the power...

Currently Under Development Preliminary Specifications: Gain: 16.8dB or 6.92 (For 8 and 6Ω speakers) Gain: 13.8dB or 4.89 (For 4 and 3Ω speakers) Signal to Noise Ratio (SNR): 121dB (A-weighted) Total Harmonic Distortion (THD): <0.0003% (-110dB) @ 7W Frequency Response: DC - 60kHz Sensitivity...

So I came across this little amplifier while surfing Taobao. It's a clone of the famous HPA-V281 by Lake People. The seller claim that it was not a replica but rather a copy version which removes unnecessary parts keeping only the amp part to reduce long signal lines and audio loss. Some buyers...

It seems a not very well known fact that when a speaker is connected to an amplifier the distortion increases. This being due to the speaker presenting a non-linear load to the amp. Here's an article which includes several FFTs demonstrating the kind of distortion increase that occurs with...