drbond
Responses from drbond
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @rsf507 Yes, to a casual observer, you may wonder why we are talking about subwoofers on a thread that started with phono stages. Well, the phono stage question was resolved rather quickly and emphatically in the first few pages of the thread, w... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 Unfortunately, the more I read about HPF, the less inclined I am to use them: everything that I’ve read so far indicates that their use does impact SQ. Additionally, here’s a paragraph about higher order HPF influencing signal moreso than lower o... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @lewm Thanks for the clarification. My favorite pieces involve the cello or cello and piano. (Yes, Bach, but also Beethoven and Brahms.) Consequently, I was thinking that the crossover should be below the lowest cello note, which is 44 Hz, as... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @lewm Is there such a thing as an active analog high pass filter, or are all analog high pass filters passive? Thanks. | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @lewm So, with the Velodyne Digital Drive subwoofer, the entire line goes through the subwoofer from the pre-amplifier? And the Velodyne has both a high pass and low pass filter, which the high pass filter line then goes to an output line into t... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @rauliruegas By complicated, I was referring to the act of installing an in-line digital high pass filter after the pre-amplifier, which would require an ADC and then a DAC before the amplfiier. . . and not sure how it would then affect the SQ, ... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 Hmmm…this subwoofer project is looking complicated: it seems like an ideal approach would be an in line high pass filter after my pre-amplifier, but this would have to be an analog filter, correct? (I can see myself reacting to a cello that soun... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @lewm I suppose this means that your preferred approach would be to use both the XLR and RCA outputs from the pre-amplifier: one set for the monoblock amplifiers, and one set for the subwoofer. If that’s the case, then it seems like my pre-ampl... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 As I mentioned, I've never used subwoofers before. Based on limited reading, it seems that there are multiple approaches to connecting the subwoofers to a system. (e.g. All subwoofers have at least an RCA input for line level connection from y... | |
| Absorption, Diffusion or a combination of it all? @jaytor Yes, I tried many combinations, including nothing at all. I found that absorption (and bass traps) behind the speakers along the full length of the front wall presented a most realistic presentation: most detail and clarity with realism.... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @lewm I’ve been reading a little about sub woofers, and many sites do say that adding a subwoofer can make a real difference in other areas, such as sound stage, imaging, mid-range, etc. I’m not really sure things can sound much better, but I ... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @rauliruegas Any recommendations for a pair of subwoofers that would work with the Sound Lab ESL's? Also, since I know nothing about setting up subwoofers: is there a frequency dial that you can adjust for the precise crossover frequency? Doe... | |
| Absorption, Diffusion or a combination of it all? From what I’ve read, which may or may not be accurate in all instances, is that you want absorption behind the speakers (front wall), and diffusion behind the listening chair (back wall). Based on experience, I can vouch that the aforementioned h... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 @rauliruegas Thanks for your recommendations. What would be the simplest and best way to add subwoofers to the system with ESL’s? I know one guy, Duke, involved tangentially with Atma-Sphere who made a group of four sub woofers, called the Swarm... | |
| Phono Stage upgrade to complement Dohmann Helix One Mk 2 Here's a reminder for the tone purists: musical instruments (piano included) have complex harmonic structure: the fundamental has a frequency, but striking a note on a piano keyboard means as the sound resonates, many harmonics (integer multiples... |