robbie010

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Everything posted by robbie010

  1. Well! getting to grips with REW has been interesting!! The HFD software for the plate amps is actually quite user friendly, even for a complete novice like me! The few changes that I have made this far have been minimal but it is very interesting to take a measurement and then make a change to the EQ that is immediately evident in the next measurement. The one thing that I found striking was how a few changes to the lower frequencies seemed to really clear up the mid-range, so much so that I may have to spend some time getting used to the new sound........ More to follow!
  2. Thanks for the pointers. I feel that I am getting to grips with REW, enough so that I have uploaded some frequency response graphs and added a target curve, which has allowed me to create some filters. However, the Hypex software does not allow me to upload these filters, rather I am going to have to add them manually.... not that big a deal, I know! One question I have is about the best practice in creating filters, is it best to initially create broad filters covering the whole frequency response (20 - 20,000) and then dial in each driver by creating further filters within its given frequency band, or do I do each driver inidvidually and tweak as necessary?
  3. Would something like this help: https://gikacoustics.co.uk/product/gik-acoustics-scopus-tuned-bass-trap-t100/ Maybe placed behind the speakers to cancel out the reflection?
  4. No, that is just the right channel playing. Where would I start with bass traps? I have a space behind my speakers that I could fit a bass trap in but how thick etc?
  5. I have used a number of online calculators to try and assess what is happening, it doesn't seem to be caused by floor bounce, however, it is most certainly caused by speaker boundary interference. When I added the details of my room to an SBIR tool it clearly shows the boudary effect at 100Hz:
  6. I've had a play around this afternoon with REW and the DSP software for my plate amps. I was kindly provided with a full set of basic filters for my speakers from a Klipsch afficianado and I have been tweaking this today. As you can see, there is a 5db null at around 75Hz and a large 15db null at 106db, so I am looking for some advice as to how this could be tackled using the DSP filter settings? I have lots to do outside of this frequency range but this is by far the biggest issue. Any advice on how to approach correcting this would be much appreciated!
  7. I’ll take all 3 Beatles records please.
  8. For anyone else confused by this, I’ve hooked the up cart using the suggested settings for high output MC in the manual: However, I am using the XLR output and felt the gain was too high, so I knocked it down to 46 and it matches well with the level of my digital input at the same volume. 👍🏻
  9. Selling this for a friend, I have used it for a while and can confirm that it performs outstandingly, but it is far to “high end” for my needs. Perfect condition and fully boxed. Lots of details on the web and loads of good reviews. Asking £650 collected or plus shipping. Item located with me in Oldham, Greater Manchester.
  10. That what I was thinking..... luckily I've jus picked up a project phono box RS, so switching between MM & MC should be no big deal!
  11. 😂 Yes, its getting late..... I’ll pick this up again tomorrow! Thanks to everyone for all the input!
  12. Thats it. Today, I have simply replaced the physical (component based) crossover within the digital DSP unit and recreated the original crossover. Initial measurements using REW show pretty much exactly the same in-room response between the original (component based) crossover and the new digital DSP one, so I am now on the journey to try and EQ it to a flat response.
  13. Yes, exactly that. The Fusion Plate amp performs both crossover / DSP duties and amplification in a single unit.
  14. Free to good (any) home. Little Bear T8 MM /MC phono stage. I can’t place my hands on the power supply at the minute but I’m sure I’ve got it somewhere. Happy to box it up and ship at cost.
  15. I’m struggling to get my head around this one.... My initial digital crossover setup is based upon the known setup of the physical (component based) crossover for my speakers. I am then planning to tweak the digital crossover to give the best in-room response. There are lots of different versions of the crossover for my speakers as they have been around since the late 1950’s and lots of people have already done most of the legwork to workout different crossover designs with different crossover points and slopes etc. If I was to cart the speakers outside and lift them two meters off the ground to take readings, what exactly will those readings tell me? How would these readings help me tweak the in-room frequency response? Sorry if I’m missing the point here, I’m just struggling to join the dots between the anechoic response and the in-room response.
  16. I’ve just pulled out a Dynavector cart I’ve not used for a while, it is labelled as DV-20X and from what I can find online there were both high and low output versions, however, there are no other markings to identify which this is..... Is there a way of working this out or is it just a case of hooking it up and seeing what it sounds like?
  17. Is this not for “new” speakers? i.e. speakers that are made from scratch? Not to a known design?
  18. Why do I need to measure outdoors, Ric? What does this acheive?