This is a review and detailed measurements of the Elac Debut Reference DBR-62 bookshelf speaker. It was kindly purchased new and drop shipped to me for testing. The DBR-62 costs US $600 a pair from multiple sources/dealers.The DBR-62 comes in black and walnut finish or the distressed Oak and white which is what I received:I really like the baffle, the slot port and woofer. The grill on the tweeter is a bit out of place in my mind but not overly so. Overall, it is a very modern take on speaker design which I like. It comes with a gray patterned grill which can hide the drivers if you like.So far my reviews of other Andrew Jones speakers has not resulted in any star performers. Some have actually been disappointing. Will the DBR-62 be an exception? Let's find out.Measurements that you are about to see were performed using the Klippel Near-field Scanner (NFS) . This is a robotic measurement system that analyzes the speaker all around and is able (using advanced mathematics and dual scan) to subtract room reflections (so where I measure it doesn't matter). It also measures the speaker at close distance ("near-field") which sharply reduces the impact of room noise.In a nutshell, the measurements show the actual sound coming out of the speaker independent of the room.All measurements are reference to tweeter axis with the grill removed. Frequency resolution is 2.7 Hz. Over 700 measurement points were used to assure high precision in higher frequencies, resulting in well under 1% error. I am also using averaging to lower noise in bass frequencies. I also doubled the drive voltage (for spinorama) to overcome low frequency noise in my setting.All measurements are with no grill and on tweeter axis.Acoustic measurements can be grouped in a way that can be perceptually analyzed to determine how good a speaker can be used. This so called spinorama shows us just about everything we need to know about the speaker with respect to tonality and some flaws:On-axis response is quite flat for a budget bookshelf speaker. Yes, there are a few peaks here and there including a resonance around 610 Hz which you can also see in the waterfall display:Predicted in-room response is quite good as well, indicating off-axis performance that is close to on-axis:I note EQ but in later listening, I don't think that is necessary.Here is the response for the most powerful and audible reflections in a typical room:Minimum impedance is 5 ohm which is above most bookshelf speakers which drop below 4 ohm:However, note the area I have circled. Impedance is high at about 8 ohms but the phase angle is quite acute at nearly 50 degrees. This means the speaker will ask for current when the output voltage is very low. So you better have a beefy amplifier to drive this speaker.Edit: Distortion measurementHorizontal directivity shows that most of the response enjoys a very wide, nearly 80 degree angle:This means toe-in angle is quite forgiving. And there is wide sweet (listening) spot.Vertical angle is much worse and is typical of two-way speakers of this design:Which backs my recommendation to absorb those reflections if it doesn't make your room too dead.I zoomed in the 3-D soundfield at the resonance frequency for fun:On the right is our woofer/port. On the left is the back of the speaker. So it looks like the back is resonating and causing interference pattern with the front wave.Ah, what joy! Just put the ELAC DBR-62 on the stand and with no fiddling/adjusting, etc. it sounded superb! Absolutely superb. Balanced sound with tons of detail. Bass output was impressive. Despite use of a single speaker in my testing, it could fill my massive space with plenty of powerful low energy. Mind you, there was 1000 watts on tap to drive it but still, the speaker showed little sign of stress. At extremely high levels (ear bleeding) I could hear some resonances but back off a bit and you were invited to incredible performance.I went through some 20 to 30 reference tracks and every one, without exception sounded amazing! With some speakers I have to hunt to find a good sounding track or two. Not with the Elac DBR-62.Note that the only EQ I used was for the 200 bass mode in my room. There is enough bass out of this speaker to energize that mode so be sure to have some means of EQ for your bass frequencies. Above that, none is needed but you are welcome to try some to taste (broad, low-Q EQ).The ELAC DBR-62 objectively and subjectively meets and exceeds my expectations. It is "Andrew Jones" as I expected but had been missing up to now. It is "high-end" sound on a budget with little to apologize for. I was sad to stop listening to it to type this review! It is that good.Message to Andrew: please stop messing with coaxial drivers and such. Optimized 2-way system like this outperforms them all. They design won't sound sexy on paper but boy does it sound good in person. And no fussiness with placement in room either.So save up if you have to but don't settle for anything less than this.------------As always, questions, comments, recommendations, etc. are welcome.Two things make me happy: audio products that are well engineered and money. Today I got my dose of the former so no donation is necessary. But if you feel like it, you can do so using