The OECD Weekly Tracker, based on Google Trends and machine learning, suggests a slowdown in May-July 2022 (but no negative readings).
The summary is that the WEI (10 components) indicates continued strong growth through 8/6. Source: NY Fed via FRED, OECD, WECI, and author’s calculations.
VMT HOOK CLASS PLUS
Average growth of US GDP over the 2000-19 period is about 2%.įigure 2: Lewis-Mertens-Stock Weekly Economic Index (blue), OECD Weekly Tracker (tan), Baumeister-Leiva-Leon-Sims Weekly Economic Conditions Index for US plus 2% trend (green). reading of 2.1% for the week ending 6/25 is interpreted as a 2.1% growth rate in excess of long term trend growth rate. The OECD Weekly Tracker reading of 1.9 is interpretable as a y/y growth rate of 1.9% for year ending 8/6.
The WEI reading for the week ending 8/6 of 3.2 is interpretable as a y/y quarter growth of 3.2% if the 3.2 reading were to persist for an entire quarter. The uphill task for a Class D amp is from the mids to high frequency reproduction.Follow up to “So you think we’re in a recession as of beginning August”…and rejoinder to those who believe we’ve already been in recession for a while.įigure 1: Lewis-Mertens-Stock Weekly Economic Index (blue), OECD Weekly Tracker (tan), Baumeister-Leiva-Leon-Sims Weekly Economic Conditions Index for US (green).
Switching frequencies have no issue with low frequency signal reproduction. There is absolutely no hiss for subwoofer use. This hiss can further be negated by reducing the gain on the Crown amp & using the source preamp's volume to amplify the music signal. If you use unbalanced RCA output of your source to the amp's input RCAs, there will be hiss.īUT this is audible ONLY if you placed your ear right up to the speaker cabiner next to the tweeters. This means the connecting preamp should have balanced XLR outputs. This spin up lasts for about two minutes until it spins down to silence.Īs a Class D amp, there is no hiss if you use the balanced XLR inputs. Celsius, the fan spins up rapidly and that's when it gets audible. Even in a room with an ambient noise level of say 45 to 55 decibels.īUT if room temperature (minus signal, minus AC, minus fan) moves northward of 39 deg. Hopefully someone will post that on HFV forum.Ĭlick to expand.The fan is not at all audible. The fun will be to connect the 1502 using a preamp like the Schiit Freya that has balanced outputs & hear the audio sonics. It's assuredly not a preamp by any standard. Ergo, one has to treat the 1502's gain knobs as just that to control gain. Mind you, the CC Audio outputs a perfect analog line-out signal of around 1.2v & despite toggling between the 775 mv & 1.4 v setting, it was not engaging. On a whim I also connected the Chromecast Audio directly into the RCA inputs of the 1502. And yet the music in this setup chain was NOT engaging. No hiss, no noise, nothing at all, black, silent. BUT not in all scenarios - Like my experience of sterile, flat sound between the direct connection of Oppo 105D & 1502 (balanced outs & ins) & playing with both gain settings of 775 mv (Very Loud) & 1.4v (In sync with gain). Which is why a complete balanced connection between the source & this amp would be ironclad, awesome. Again NOT a killjoy at all by any yardstick of "Listening-In-The-Real World" measurement. & you MIGHT hear this hiss only at higher levels of amplification/gain. But what if you have speakers rated at 95 to 100+ db SPL efficiency? Chances are you MIGHT hear a bit of hiss when there is no audio playing. In a real world scenario, this is of no consequence, especially if you use speakers that are rated around 86 db SPL of efficiency. Lowering the input sensitivity on the 1502 (& connecting via unbalanced RCAs) means getting closer to the inherent noise level of the 1502. Which also means you DO NOT have to increase 1502's gain knobs drastically.īUT.
VMT HOOK CLASS FULL
But at 775 mv setting, the sensitivity of the 1502 is lowered, thus ensuring it amplifies the full audio sonics of the C2 preamp. Now if the 1502 setting was at 1.4v, the overall audio sonics will sound wimpy. made in the late 70s specifies around 1.0v unbalanced audio signal out via RCAs.
VMT HOOK CLASS SERIES
Click to expand.In the XLS series of amps the setting of 1.4v or 775 mv is to ensure compatibility across a wide range of preamps.
0 kommentar(er)
