Wren-DQ (CHP-70-P Gen2 with Peerless DQ25SC16-04)
Wren-DQ In this version of the Wren, I replaced the Peerless BC25SC08-04 with a titanium dome tweeter, a DQ25SC16-04. This is the most convenient tweeter to use because they share… Read more >
Wren-BC (CHP-70-P Gen2 with Peerless BC25SC08-04)
Wren-BC In the Wren-BC, the Markaudio CHP-70 now has a companion, a Peerless BC25SC08-04 tweeter for the treble. That will elevate this full range to a higher level. The first… Read more >
Wren – Markaudio CHP-70-P Gen2 Bass Reflex
Wren – a CHP-70 Bass Reflex In all my previous posts on the CHP-70, it was with a 1.7 liters sealed box. What I wanted to find out then was… Read more >
Markaudio CHP70-P GEN2 Thiele & Small
Markaudio 4″ CHP70-P GEN2 Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Ported Box=7 liters • F3=57Hz (DATS x0.75 T/S) Sealed Box=7 liters • F3=112Hz (DATS x0.75 T/S)… Read more >
April 15, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >
Time Alignment (CHP-70-P Gen2 with HiVi TN28)
why the TN28 It all has to do with using a 1st order crossover. I initially used the Audax TW010E1 because all it needed was a 2uF capacitor. With that,… Read more >
Correcting Baffle Step (CHP-70-P Gen2 with Audax TW010E1)
Baffle Step Compensation I saved the baffle step compensation (BSC) for last because I wanted to see whether I can do without it. Presently, the CHP-70 with the TW010E1 are… Read more >
March 10, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >
Time Alignment (CHP-70-P Gen2 with Audax TW010E1)
Time Aligning the CHP-70 with TW010E1 There are different ways to time align drivers. Most common is to either move the woofer forward by using a step or to tilt… Read more >
March 8, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >
Markaudio CHP-70-P Gen2 with Audax TW010E1
why the Audax TW010E1 Because this is one of the few tweeters I have that works superbly with a 1st order filter. The other is my Morel CAT 378 which… Read more >
March 4, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >
Markaudio CHP-70-P Gen2 with Elite VRT18 Ribbon
First Impressions I’m not a fan of full range drivers but I was curious as to the performance of the CHP-70 by Markaudio. I’ve never owned nor heard any drivers… Read more >
February 28, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >
Markaudio CHP-70-P Gen2 Full Range Measurements
Manufacturer’s Frequency Response Measured Frequency Response Baffle Width = 6-1/2″ | Sealed Box 1.7 liters | No Smoothing Step Response Cumulative Spectral Decay Toneburst Energy Storage Spectrogram Harmonic Distortion Impedance… Read more >
February 27, 2020 Drivers Thiele & Small, HIFI DRIVERS Read more >