Yes they are not integrating well with the current position or I am doing something wrong. Either way I gave up and decided to settle with one sub. I have successfully calibrated dual subs before which weren’t even identical but they where without mini dsp. So before I ship the sub for curiosity sake I’ll just try calibrating dual subs connected directly to the avr removing the mini dsp from the chain.
Mini dsp helps in aligning dual or more subs.You can calibrate up to 4 subs using mini dsp which is not possible with avr’s. You can even use avr’s that doesn’t support dual subs and have a dual or quad sub set up using mini dsp with avr’s that support only single sub. The method to align dual subs is different using mini dsp compared to calibration of dual subs using avr. You can also create a house curve using mini dsp. Previously I have calibrated dual subs using avr and it worked well. Yeah good it is not a dead investment and since it was a rythmik it was easy to sell given the reputation they have for their subwoofers
Sorry forgot to answer your question on why I invested in a mini dsp when the avr has individual bass management. With the avr when you complete audyssey it sets two individual delay values for both the sub. Now we need to measure and make sure both the subs are aligned by testing different delay values for both the subs. Once that is completed again you need to experiment different delay values to integrate them with the mains. With a mini dsp you are using only one LFE output from avr. So sub1 output to minidsp input1 and connect both subs to output1 and output2 in the minidsp.So once you complete the integration of the dual subs using mini dsp you will run Audysey in the avr but the avr will be configured for one sub alone. So while integrating with the mains you just need to play with delay values in the avr for sub1 alone. The house curve in the mini dsp also helps us set a target curve which will give great results.
Well I have even decided no need of a dual sub haha. Already one sub sold and Mini dsp also I will sell. Just going to settle for a single sub.
Yeah thanks for the suggestions and like you said with more efforts and testing by the ears I am sure I could have gotten it working. I could have also tried different placements. But I took the decision after listening to some music and action sequences in a single sub. I enjoyed the single sub performance and yeah there are many areas bass was missing but rather then busting my ears I decided to start enjoying my system. I am overall happy with the soundstage for both movies and music. Time to make peace with my room limitations and most importantly my ear limitations
Isn't Audyssey supposed to do this for you?
well it’s very difficult to explain in detail why mini dsp is better in a dual sub calibration over the avr but I’ll try. Mini dsp does better job with eq then audyssey. And also you get to apply eq manually over what audyssey sets automatically. With mini dsp you get to create a house curve based on your taste for bass. When you set a house curve the mini dsp combines both the sub and gives a smooth response as show in the image below. This image is from YouTube where one aligns 4 subs. If you see in the image there is a huge boost from 30hz and below.Reason to create a house curve like that is to feel low bass much better. Thump and slam is much better cause the lower the bass,it needs more spl. So you get the option to eq the subs according to ones taste in bass. Either you can choose a flat curve and or set a curve to have more thump in the lower end. Yes avr also sets delays but it’s difficult and time consuming to get the right values since both subs have individual delays. With mini dsp you are using only one sub output from avr so audyssey will set only one delay value for sub. So while integrating with mains it will be very easy to experiment multiple delay values for one sub alone since the dual subs are already calibrated in the mini dsp to be one sub. And the dual sub calibration is done in the mini dsp before audysey using the pure direct curve so there is absolutely no work for audyssey as both subs are already aligned and eqed to be flat and smooth.
But in most minidsp it cannot handle direct signals and expects the signals to be decoded and received.
Did not follow what 'direct signal' means?
Hey Prateek do you think a single 15 inch sealed rythmik sub will be good for my use. Already liking the LV12F a lot. Sharing my room size for reference. I went duals after experimenting different dual subs in my place. No intention of upgrading any time soon but in future if I ever feel the need I would like to experiment a good sealed sub.
Hi Navin,
Hey Nitin I have the LV12F and not the lvx12. 15 inch sealed rythmik shouldn’t be very big physically for my room. Now that I have concluded no duals I was just curious if a 15 inch sealed will be good.
Oh ok, sorry got mixed up with your current sub model no. I think the 15 inch Rythmik FV15HP will be much more bigger and heavier than a PB 2000(my reference for size) which itself is big and heavy. It may be better to go in person and see if it is there with your dealer to get an idea. Believe me , it's not only the dimensions, but the weight also is a very important factor to consider in our later years as you have to be more bothered about your back or running into hernia issues by lifting heavy stuff. Since the room is small, the choice is there to go for a smaller sub.
