1. dougi

    NAD C3050 meters and levels

    After finally getting my NADC3050LE delivered, there were a couple of things I wanted to understand in relation to the analog input and preamp outputs, as I need to use both: run a separate phono preamp into the line in and drive a separate amp from the preout. Consequently I wanted to verify...
  2. pasi123567

    Do we really need to EQ the room?

    I already had a discussion on this with some people but I still don't really get it. Now I am also not that deep into audio to really understand everything but this is what makes sense to me. Lets say we have a speaker that measures perfectly flat in an anechoic chamber. This means that the...
  3. V

    Is it possible to flatten out a non measurement microphone?

    I was wondering if one could flatten out a microphone by inverting the frequency response found in a graph. I would like to get a taste of the result without having to buy an expensive microphone for this... There's a Superlux microphone, which is pretty cheap, but requires an audio interface...
  4. M

    Audio interface usb multipurpose inside 500€

    Hello everyone! I'm looking around for a usb audio interface (no thunderbolt) around 500€ that has these requirements: - distortion around -115db more is better - at least 4 entrances more is better -at least 6 outings -at least 24/192khz -internal mixer and dsp -a truly flat frequency response...
  5. GurvanBHC

    Tweeter impedance problem

    Hey, can someone tell me if you find the Monacor curve’s normal? The Aliexpress tweeter seems normal to me but the Monacor I have never seen such a curve, the second Monacor tweeter is already better than the first... (measured with DATS V3) Thank you in advance
  6. A

    acoustic problems in my home studio (garage)- please help

    Hello everybody, I have a home studio in my garage (6.20x4x2.60 meters). I did an acoustic treatment with DIY bass traps using rock wool with a density of 70 (120x60x8cm each). I placed them at the points of the first reflection using the mirror technique. I put corner bass traps in the corners...
  7. R

    Behringer Truth B2031A - how to flatten it with the switches in the back only

    In my review & mod of the speaker, most people liked my tinkering to make it better, but some "understanding" souls told me I know no engineering or that I simply got a broken speaker. Well, I bought two more! With 3x B2031a purchased each separately over the course of 2022, I have a good view...
  8. di2ger

    Creative Sound Blaster G3

    Hi guys, I wanted a small device for digital/analog audio measurements so I bought Creative Sound Blaster G3. It has Line-in and mini-Toslink Optical inputs. I used Topping D10s and REW to do some testing: Line-in performance is quite underwhelming, but what surprised me is that the digital...
  9. M

    Harman target curve for OE and IE

    Hi, does anyone have a Harman target curve in excel or any different file? I am looking for a target curve for both headphones and earphones.
  10. PaperBoat

    Pultec punch

    Hi all! Merry Christmas Eve! I've paired my JBL 305p MKII Monitors with an IFI Zen Air DAC... I toggled boundary EQ to -3dB and now trying to tighten up the low end using DSP... My IFI DAC has an XBass+ switch which is an ASP circuitry. I know the XBass (XBass+ has better components) feature is...
  11. ahofer

    Importance of SPL-Response Linearity

    I keep looking at these graphs in Erin’s reviews and thinking these measurements deserve more discussion. Doesn’t a lot of difference hear suggest that the speaker’s dynamic response is poor?
  12. dougi

    Class D vs tube at the listening position

    After recently purchasing a New (Very Old) Stock Audio Research amp from a store and noting how I subjectively liked it in comparison with my existing amp (March Audio P502 Hypex), I thought I would take some comparative measurements at the listening position to look for any differences...
  13. trl

    E1DA Cosmos APU - Teardown and personal thoughts and measurements

    Hello all, I recently received a Cosmos APU from Ivan (@IVX) to have it teared down and, why not, to have its guts tested as much as possible. Main product page is from where we can get lots of technical details about this interesting audio...
  14. S

    REW-like app for mobile (Android/iOS)

    Hey all, In another thread, y'all might be convincing me to invest in a minidsp UMIK-1 measurement microphone. I'm thinking about one advantage of a USB mic: portability. Could a smartphone use the UMIK-1 and its calibration profile? If so: Is there a recommended app for iOS/Android that's...
  15. U

    Having trouble interpreting frequency graph

    Hello, I am new when it comes the room acoustics, I have been mixing in headphones most of the time, and now I would like to start mixing on speakers , I have set up my speakers and my best listening position in my room, it is a small room with a slanted roof. I have ran some test on REW with L...
  16. dougi

    Come on Amir, where's your nuclear power station?

    You should try and visit this place Amir, only in the next state. A Stereophile article about audio test lab in an old power station. No pictures of the inside though, or on the NWAA site either.
  17. Holdt

    Yamaha A-S1000 measurements anywhere?

    Hi there I'm searching for some THD, FR and Power measurements of the Yamaha A-S1000 but haven't had any luck finding any. Anyone who might have a link?
  18. P

    REW Room1 vs Room2 Review Help

    Hello All, Wondering if you could help me review some of the results from REW, just concentrating on the centre speakers for each room. Measured with the same laptop and a iMM-6 Calibrated Mic with a cal file added in REW. Room1 - More sofa's pictures etc in the room and with some very cheap...
  19. Dilettante

    How to measure a portable player?

    Please share the best practises. I have a pocket audio player; can certainly save test tones into its memory and play them back. Any ideas how to run a RMAA test, Multitone sweep and such?..
  20. Pinox67

    Physics and perception of low-order nonlinear distortions

    Introduction In the engineering of electronic devices for music production or reproduction all designers are faced with the problem of minimizing the different forms of distortion inexorably introduced by their creations on the audio signal. They are commonly classified into two categories...
Top Bottom