1. B

    Analog Pass-Through DAC to Pre

    I’m running a R26 DAC (happily) into a Madrigal Proceed AVP2 Pre/Pro (baby Levinson). I only listen to Stereo Sound (no effects, no HT). I have run dual subs historically, however, I just learned I’ve been listening to the Proceed’s internal DAC! It sounds and has sounded “good” to me. Unless I...
  2. P

    Using E1DA Cosmos Scaler as preamp

    Would it be okay (not breaking anything and getting SOTA sound) to feed the output of a Topping E70 DAC into this Scaler and then subsequently the output of the Scaler into an Audiophonics LPA-S400ET amp set on low gain? The scaler has a red light that turns on when the output is greater than...
  3. D

    Purpose of variable input on some power amplifiers.

    I have a WIIM pro plus and was considering connecting it directly to an NAD C268 power amplifier. For safety reasons, I'd use the "variable input" on the back of the amplifier to set a "max" level in case the WIIM volume control goes haywire. Is this a viable solution? I know I can buy a preamp...
  4. peniku8

    Behringer ADA8200 Ultragain Measurements

    Here are my measurements of the Behringer ADA8200 Ultragain we purchased for the studio 6 years ago. Current price I see on Thomann Germany is 220€. The unit is digitally fed by our RME Fireface UC and analog I/O consists of a Topping EX5 and a Cosmos ADC. Let's start with the DAC part...
  5. R

    Sooo many questions about preamp Equivalent Input Noise (EIN) measurement. please help!!!

    I encountered a significant setback while studying the process of measuring the Equivalent Input Noise (EIN) of a microphone preamp. There are several tutorials on EIN measurement available online, but I have many areas of confusion, which has resulted in me spending over a week without fully...
  6. aaronsarkissian

    The new Schiit Kara seems much better than Freya S, any info on it?

    Yesterday I was researching about Schiit Freya S and Freya+ and today saw that Freya S is no longer available and there is this new Kara. It includes headphone AMP and many more performance boosts. Can we expect major changes or is it better to get Freya+?
  7. Kal Rubinson

    For Sale: Topping Pre90 (2 available) and Ext90

    I am offering for sale 2 Topping Pre90 preamps and an Ext90 Input Expansion module in excellent condition with only moderate use. These are extremely transparent devices with extraordinarily low distortion and noise. Original shipping cartons, insulated boxes, power cords, manuals included...
  8. Wooferhead

    Budget Preamp Processor for a 3.1 ch Setup that is not an AV Receiver?

    Not everyone wants nor needs a 16 ch home theatre setup to enjoy a movie at home. For a great multitude of people a 3.1 ch setup would nicely suffice for everyday use. However, putting together a 3.1 ch system is not as straight forward as one may hope. Although there are a few good quality 3 ch...
  9. S

    Powered Sub Best Pre Amp

    I have a Klipsch powered subwoofer I want to connect it to my TV, which pre-amp would give the subwoofer optimal performance?
  10. pma

    Audiophonics PRE-TC10 preamp with tone controls - review and measurements

    I have decided to buy and measure this preamplifier with tone controls, supplied by Audiophonics. It can be ordered here: and it costs 49.92 EUR...
  11. P

    MiniDSP with a separate DAC and Preamp

    I'm trying to resolve a 45hz room mode and have been advised to check out MiniDSP. I know a little bit about MiniDSP but I don't fully understand how or where it would fit into my current system. I'm currently running a Chord Hugo TT2 with M-Scaler into a Benchmark LA4 preamp that feeds 2x...
  12. Mehdiem

    Significance of Gain Adjustment (NAD C298+RME ADI)

    Hello folks, I am using RME ADI-2 FS as a DAC/Preamp feeding my power amp NAD C298. My amp has a gain control from -20dB to 0dB. In my current setting, I kept the amp gain at 0 and my RME volume is around -40 to -50 db. Im wondering if it’s better to lower the gain in my amp and increase the...
  13. Greg_gal

    Rothwell Simplex Phono preamp

    Hi Everyone, Has anyone heard the Rothwell Simplex? There’s not too much information out there but it looks good to me for under £300. I’m also considering the Mofi Studiophono which seems highly regarded and is the same price. Then there is a lot of buzz about the Schiit Mani 2 but I wonder if...
  14. J

    What is so tricky with SMPS in audio?

    It took a long time to shift from linear power supply to SMPS in high end audio producs. Nowadays, SMPS seem to have completely replace linear ones except in some niche areas. I've often heard the advice to beginners to not touch SMPS and stick to linear supply for DIY projects, because...
  15. aikofan

    Need analog passive 2.1 volume control

    I read about that dreaded ”automatically going to 0dB/melting tweeters & my eardrums“ problem on a couple of threads today, so I was inspired to start this thread. Like most of you, I despise this problem, and I’ve run into it way too often over the years. Most recently it was my miniDSP Flex...
  16. T

    Adcom preamp overhaul vs. new A/B splitter + EQ vs. other options?

    Hi all, first time poster here. First, my apologies for the LONG post! I happily discovered this forum fairly recently while on the hunt for an audio community with a science based approach instead of the usual "magical thinking" that unfortunately seems to dominate most of the online audio...
  17. L

    Is my Rotel RC-1590 preamp THIS bad or am I measuring wrong?

    I have a Rotel RC-1590 preamp and have noticed that when it's not muted there is an audible hiss from my tweeters. This prompted me to hook up my QuantAsylum 402 analyzer and measure the SNR to see what was up. The spec on the Rotel web page lists the 'IHF "A" Weighted' SNR for digital inputs at...
  18. L

    Preamp with nice volume knob for Hifi & Multichannel Purifi Setup

    Hey all, At the moment I have a Denon X3700 as Preamp, which for the long time fed a Yamaha MX-1 with Dynaudio Evoke 50s, recently joined by the Evoke Center and the Dynaudio Sub 6. Long time lurking and reading led me to upgrade the MX-1 to a Boxem Arthur 4215/E2 which arrived today and is a...
  19. E

    SOLD!!!: Paradigm PW Link streamer pre-amp ARC room correction

    Longtime ASR lurker here -- couldn't live without the great reviews and community advice -- but first-time seller, though I have feedback on other sites and forums. This is a fully featured digital streamer and preamplifer with Anthem ARC room correction built in. You can stream via the app...
  20. Fascinated Viewer

    Audio - Mains noise

    Hi, I have a vinyl player from, I think, the 1980s not sure, as it does not exist anywhere online (Ion iTT02), and I also have this plugged into a Behringer phono preamp (PP400). The output is phono to 3.5 mm jack and plugs straight into my polaroid speaker. Yes, the same company that makes the...
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