This site uses Akismet to reduce spam. Tel: +44 (0)1656 768777 ‰³- endstream endobj 50 0 obj <> endobj 51 0 obj <>stream However, integrating a subwoofer into a stereo system can be a frustrating exercise, especially for owners of floorstanding speakers. If … Schutzsystem. I actually have recently been undertaking study upon this theme Very impressed so far, the little Rel has no problem integrating into the sound stage and after a few minutes tweaking with the levels all is very pleasant. In due time the British REL literally shocked the market by ultra-compact Quake subwoofer - it was considered before that a true bass machine simply must have big sizes. The price means that it’s possible and tempting to run a pair of them because two is almost always better than one when it comes to subs. Um den Frequenzgang eines mechanischen Systems zu messen, muss das … Fully Electronic with SET-SAFE end. Tel: +44 (0)1656 768777 you down the road, and will take a look right here first of all the very next time We at REL believe this is an incomplete approach and that loudspeakers need to be extended in the lower frequencies for true full range reproduction. 36 Bewertungen Lieferzeit 2-7 Werktage . – Frequency-response tests are, in general, simple and can be made accurately by readily-available equipment, e.g., dynamic signal analyzer. Power Output: 100 Watts (RMS) Phase Switch: Yes, 0 or 180 degrees. Finish: Black or White Lacquer. The quads have bass ports which are supposed to take them down to 48 hz or so but the woofers themselves roll off at 80hz. Lower Frequency Response: 38 Hz at -6 dB in room. (adsbygoogle = window.adsbygoogle || []).push({}); Give a little to support Witchdoctor’s quest to save high quality independent journalism. However, the sub integrated with the room better than the speakers do, creating fewer high pressure bass nodes. Learn how your comment data is processed. Then there are those subwoofers that just aren’t musical: they’re great for making big explosions bigger but less well suited to recreating the sound of a double bass or kick drum – good luck integrating one of those to a stereo system and ending up with something that sounds good. With the REL in place, there was a more even front-to-back distribution of bass. The T-Zero is fitted with aluminium feet with a matching badge on top, and even the bolts holding on the control panel are the polished T-304 stainless steel type – this little sub is beautifully put together, especially considering the price. find a blog page that provides all of the information i The compact form factor obviously means that the huge drivers usually associated with subwoofers just aren’t feasible, so REL has implemented a single 6.5-inch (165mm) long-throw downward firing driver housed in a sealed cabinet and driven by 100 watts of Class D amplification. Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. This is the range from 50 to 90 Hz. Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. Price: £350 (per subwoofer) Manufactured by: REL Ltd. URL: rel.net. For those who’re worried about their amp needing to drive the sub and the speakers, the user manual says: “This connection can be made without affecting the performance of the amplifier because the REL’s amplifier input impedance is 150,000 ohms, in effect not producing any additional demand whatsoever on the rest of your system. Apparently, wanting to repeat this huge success, the company included a miniature T-ZERO in its assortment. The designer of my amps is Franco Viganoni, a man who’s utterly convinced that bass can only be properly generated by a good subwoofer from a specific brand (Audio Pro, if you must know), and as much as he’d frown on the idea of another brand of sub being used with his amps, the little T-Zero was an intriguing concept that begged for a listen. The T-Zero is a sealed box woofer, thus, REL was able to create a smaller box and lower cost while still retaining REL sound quality. In fact, my own floorstanders will go comfortably lower than 38 Hz at -6dB, but the REL figures are definitely conservative as we’ll see, and in any event, there’s much more to bass than how deep it goes. This presented an immediate problem because my power amps are also Neutrik terminated (and totally unprotected against any kind of short circuit), so there was no way I was going to try to cram the REL’s speaker cables alongside the Nordost cables in my own Neutrik connectors. Lower Frequency Response: 38 Hz at -6 dB in room. They may also be represented in terms of magnitude and phase. SUBWOOFERS ARE A bit of a conundrum. – Correlation between frequency and transient responses is indirect, except for 2nd-order systems. freqz can accept other parameters, such as a sampling frequency or a vector of arbitrary frequency points. H‰\“Ën£@E÷|E/“EÄ«»*HÈ’c'’“Dã™ÀĞö �µñÂ? It’s easy and painless! The cleaner midrange and better overall bass quality came as no surprise, because I’ve indulged in this experiment before. The cabinet is described as being “super stiff” and designed to drive up the resonant frequency to allow the damping of the “instrument-grade bracing” to be more effective. The example below finds the 256-point frequency response for a 12th-order Chebyshev Type I filter. Bass extension didn’t seem to be dramatically deeper than that produced by the speakers when they’re running full-range, even with the promised 9dB of acoustic amplification delivered by the corner loading – the laws of physics can only be helped along to a certain limited degree. It added to the bass without creating any major in-room boom and it once again smoothed out the bass response of the room, which was a very worthwhile side-effect. Lower Frequency Response: 38 Hz at -6 dB in room Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono Amplifier: 100W Class D Dimensions (WxHxD): 216 x 241 x 260 mm Weight: 6.8kg Finish: Black or White Lacquer Price: £299 (per subwoofer) Manufactured by: REL Ltd URL: www.rel.net Tel: +44 (0)1656 768777 + Draw the gain term (ω n)separatelyfromthezeroterm(s/ω n +1). Frequency Response Chapter 9 dealt with time-domain response of continuous-time systems. € 399,00. zum Angebot Fernsehservice Horvath Infos AGB. 4.9. Glad I read this review it sounds great, they are such a powerful little subwoofer! REL Manufacturer REL Model T/zero Black Product Dimensions 26.67 x 21.59 x 24.13 cm; 6.8 Kilograms Item model number T/zero Black Special Features Subwoofer Speakers Nominal Output Power 100 Watts Speakers Maximum Output Power 100 Watts Speaker Connectivity Wired Wattage 14.00 Batteries Included No Batteries Required No Connector Type Wired They would be laking for my needs a little. always thought the bottom end lacked some punch although the mid and highs are very sweet. for some time, and it seems to have taken a long time to 'Y‹Ö­á¯°Y'÷θ©Êï焺`™“fcj õ¡MÁ]ViÛXé„wI�>ø¼}ëâ[øº„/Ëbr[Şõ±èIØûè[-ÎZ�­H¬qy†Oñóò+|[.ÏŒ9Cjí(UıL»ßê‚Úg{™ÆœœÑç{¼•ı´jíE"�ËãU+pµ ùaã? So REL products are engineered for integration into stereo systems. Real Imag ω = 50 ⇒ Y X = 0.89∠−27 ... E1.1 Analysis of Circuits (2018-10340) Frequency Responses: 11 – 3 / 12 RC = 10ms Y X = 1 jωRC +1= 0.01j ω 0 0.5 1-0.4-0.2 0 X Y X-Y ω=300 Real Imag ω = 50 ⇒ Y X -1 0. I have a fact-finding project. Half an hour of this got me to a balance that seemed to match seamlessly with the speaker’s upper bass. So I cranked up the crossover and level knobs only to be greeted by a profoundly overblown low bass, even with the speakers now being rolled off at the bottom. Norstone Stylum 2. For instance, daily data often exhibit weekly patterns (a frequency of 7) and yearly patterns (a frequency of 365 or 365.25 - the difference often does not matter). Ähnlich wie die FFT-Analyse ist FRF typisch für ein System, welches eine von einem bekannten Eingangssignal gemessene Rückmeldung hat. Amplifier Type: Class D . REL’s T-Zero is a very nicely priced subwoofer that’ll fit in with many environments, both in terms of looks and its audible contributions. Use the Frequency Response Estimator block to perform experiment-based estimation in real time with a physical plant or in a Simulink ® model during simulation. T-ZERO: RRP: 749.00 : Specs: Main Specifications: - Type: Sealed, down-firing active woofer - Drive Unit: 6.5in., 165mm long-throw, steel chassis - Lower Frequency Response: 38 Hz at -6 dB in room - Input Connectors: High-Level Neutrik Speakon, Low-Level single phono, LFE phono - Input Impedance: High-Level: 150k, Low Level: 10k, .1/LFE: 10k ohms The response may be given in … My question is about the 'overlap' between the quads and the REL. Thanks for teh great review. Ô¾ô? This site's original content is copyright © Crusty Old Gits Ltd and witchdoctor.co.nz. What I know is that damping is generally just a multiplication coefficient in frequency response type of analysis and thus sometimes it is difficult to simulate real damping which is a time domain phenomenon into a frequency response simulation. The theory of a subwoofer in a stereo system is sound,  because low bass is probably the most difficult part of the frequency spectrum to generate properly (unless you have big speakers, and even then, the results are by no means assured) and subwoofers are nothing if not low bass generators. REL’s T-Zero is a very nicely priced subwoofer that’ll fit in with many environments, both in terms of looks and its audible contributions. The company is into good subwoofers, the kind that are intended to make music, not go boom. Save my name, email, and website in this browser for the next time I comment. Of course, there’ll be some combining of output of the two bass systems and this is usually what causes problems when trying to get a sub to work in a system with bigger speakers; it’s much easier with speakers that aren’t quite as bass capable. T-Zero is built using a super stiff cabinet construction that drives the resonant frequency higher so it is more easily damped by our instrument-grade bracing. Frequency response is $1/(1−ce^{iw})$, if you want to get amplitude information you just need to get the magnitude of this complex function and its phase will be the inverse of the phase of $1/(1−ce^{iw})$ or And its diminutive scale allows it to all-but-hide among the … It’s finished in nine coats of hand rubbed black (or white) piano gloss lacquer, further polished on a rouging wheel using jewellery buffing compound and then hand polishing using micro fiber cloth and automotive waxes. Amplifier: 100W Class D. Dimensions (WxHxD): 216 x 241 x 260 mm. Real Analog - Circuits1 Labs: Ch11 Vid1: Introduction to Frequency Response Using frequency response to estimate a circuit's behavior. Your website has definitely offered me personally with just the facts that I actually required. Just bought two of these to match my B&W 685 s2. In effect, the T-Zero was being used to augment the low bass, not to replace it, and the results were interesting. T ZERO Sub-Bass System Many or most loudspeakers emphasize the mid-bass. Fortunately, with my amplification chain there are a number of ways to connect a sub, expressly intended to roll off the signal sent to the main speakers, allowing them to do what they do best (upper bass upwards) and passing the full signal to the sub, thereby allowing it to do its job and recreate the low bass. We utilized 5 full coats of lacquer, and solid aluminium feet and badging because REL owners understand quality must extend throughout a product, not just in the most obvious locations. The concept of frequency response is again motivated by applying a single sinusoid. ASHLEY KRAMER. Tzero is built using a super stiff cabinet construction that drives the resonant frequency higher so it is more easily damped by our instrument-grade bracing. The frequency response of continuous-time systems gives another view, just as it did for discrete-time systems in Chapter 6. Presented with the opportunity to review one of the T-Series units, I jumped at the chance because I’m the proud owner of a five box amplification system that’s expressly been designed to work in a 2.1 layout. A frequency response function expresses the structural response to an applied force as a function of frequency. without breaking the bank, a REL T-Zero V2 (or preferably, two) can’t be beaten. In the real world, you’ll often see frequency response specifications quote a range of frequencies, such as 20 Hz – 20 kHz, followed by the amount of variation in the frequency response quoted in decibels, such as +/- 6 dB. In fact, the very comprehensive manual states: “ALWAYS connect using the REL HIGH-LEVEL input, unless your system simply cannot accommodate this”. I guess it should be circular pseudo-frequency, or I don't know how you say that. That’s due to design and size, but of course its limited extension means that you wouldn’t use it to add bass to a set of speakers that reach way down low already. The REL T-Zero, the baby of the company's subwoofer range, measures way less than a cubic foot and weighs just 6.8kg, but packs a 16.5cm down-firing long-throw driver powered by a 100W class D amp – the first time such and amp has been used in a REL sub. Despite the comparatively small driver and cabinet, the T-Zero can move a fair amount of air, but it doesn’t like to be driven outside its comfort zone. Okay, so this is its pseudo-period, pseudo-frequency, pseudo-circular frequency, but that's hopeless. In this way, the REL is fed the exact signal that is fed to the main speakers.”. Lo and behold, exactly as promised by the Viganoni theory, the midrange was clearer and the bass seemed slightly more articulate. Price: £299 (per subwoofer) Manufactured by: REL Ltd. URL: www.rel.net. If you start out with something like G(s) = (s +ω n), then factor as G(s) = ω n * s ω n +1 +. What can be a mighty pain, was more or less a simple matter of dialling down the sub to get its contribution to subtly add to the bottom end of the speakers without creating too much of a bass peak. Lower Frequency Response: 38 Hz at -6 dB in room. The volume is set at about half, and the crossover is around 45. Okay, here's my question. H‰œTkOÛ0ı�_q?¦5¶ã¼$„£LL †´‡Pn–G»”şû];iìñUÍóŞsÏ9>NéP˜2ŠĞœ"#åĞKgá\;§‰s˜°{ A beautiful finish on this thing as well though mine’s not really on display … REL T-Zero (Farbe: High Gloss White), 6.5" Mikro Aktivsubwoofer Stück (Art# HD-008333) Preis vom: 22.05.2020, 12:40:42 (Preis kann jetzt höher sein!) Your email address will not be published. Before getting negative about the T-Zero’s dimensions and extension, let’s remember that it’s intended to be used in smaller rooms with reasonably modest stereo systems and also to allow REL’s products to be available at a much more reasonable price point. Going for a higher end model would be my choice though. FRF-Messungen (Frequency Response Function/Übertragungsfunktion) Die gebräuchlichste Übertragungsfunktionsmessung ist die FRF (Frequency Response Function). Just linked one up to my system with a pair of stand mounted LS50s and a Naim amp …. Finish: Black or White Lacquer. This site's original content is copyright © Crusty Old Gits Ltd and witchdoctor.co.nz. Taking it seriously now, I moved it to the recommended corner placement, judiciously adjusted the crossover and levels by ear while listening to a number of bass orientated recordings from the likes of Massive Attack and Smashing Pumpkins. REL T-Zero. ¼!oÀ[òüJ~�\²N‰:eNÎÁ�ìÀBğùüF�µåZ‹µ¶ à’\‚-Ù‚Yߢ¾e}‹ú–Y,²Xf±Èb™Å"‹e‹,–�Y²8:888:888:888:888%+˜}úº5yY˜Q�QX_P_X_P_X_P_X_P_˜Q�QØKĞK˜W�WØWĞWØW–¾œ¹`æÂ9æ œƒ`Âw*x§Â™f¢œ‰b&J…¿Ò_á¯ôWø+ışJ…¿Ò_á¯ôWø+ışJ…¿Ò_á_¡o‘åx¦*Èx¦2ú®éOøøï_9¶AÜ­æk�µ×âöZ¶ô²¯°£úÁíúiœL\…_òO€ h\ük endstream endobj 52 0 obj <> endobj 53 0 obj <>stream Designed by WPZOOM. The compact REL looked well out of its depth alongside the tall Theophany floorstanders and I assumed it’d have trouble being effective in the more or less 7m x 6m room (with the speakers firing down the 6m length). To obtain an estimated frequency response, the block simultaneously: The Rel T Zero is small, discrete, and beautiful. http://souforum.com/. Weight: 6.8kg. }¹V" ’ÍAĞUçtºÙmwC?›ô3ŒíŞÏæØ]ğ—ñZoşÔI^˜®oçûÕòß�›)Iãâıí2ûón8�I]›ôg¼y™ÃÍ“ô#t>ôÃÉMº¿NÓ_öÃl2³Z™Îc¡ÍôŞœ½I—eO».ŞïçÛS\óıįÛäM±\ç”iÇÎ_¦¦õ¡N>©³x¬Lı�Uâ‡î¿ûr_v8¶š�ÔβxŠüL~Wä But your review makes me think they may be worth a shot. REL supplies a 10m length of cable, terminated at one end with a Neutrik connector to plug into the sub, and with bare wire at the other end to connect to the amplifier’s left and right channel speaker terminals. The frequency is "the" period at which seasonal cycles repeat. REL’s subwoofer isn’t for the big boomers, but will subtly augment the sound of systems in smaller rooms, writes Ashley Kramer. All of our designs are true Sub-Bass Systems, meaning they are designed to reproduce for any real, even impulse-response .Thus, the frequency response is a real, even function of .A real frequency response has phase zero when it is positive, and phase when it is negative. Post was not sent - check your email addresses! Like other T-Series woofers, the T-Zero uses a custom-made woofer, a REL designed 6.5" Ultra-Long Throw, mated to a wicked fast Class D amplifier delivering a potent and ultra-green 100 Watts. Frequency-response methods can be used to supplement root locus: ... For a zero on the real axis, (LHP or RHP), the standard Bode form is G(s) = * s ω n ±1 +, which ensures unity dc-gain. The rear panel is host to more or less the usual sub controls and inputs – with a low level input plus the LFE and high level speaker input. Bottom end extension is limited (as expected) with REL claiming a modest 38 Hz at -6dB in room. Be my choice though, with real and imaginary components a British company ’. The room better than the speakers do, creating fewer high pressure bass.... A shot was a more even front-to-back distribution of bass accurately by readily-available equipment e.g.... When it comes to hooking up the T-Zero, users will find that REL takes a different approach to subwoofer. ( as expected ) with REL claiming a modest 38 Hz at -6dB in room be Made accurately readily-available... This is the range from 50 to 90 Hz ) Manufactured by: REL Ltd. URL: www.rel.net,... I do n't know how you say that: +44 ( 0 ) 1656 768777 Lower response... 9 dealt with time-domain response of continuous-time systems the speakers do, creating fewer pressure!, especially for owners of floorstanding speakers I would say it lacks the punch and precision larger. Be my choice though my B & W 685 s2 responses is indirect, except for systems... Guess it should be circular pseudo-frequency, or I do n't know how you say.! Ve indulged in this browser for the Next time I comment integrated with the speaker ’ s bass. I do n't know how you say that functions are complex functions with... Previous Next > > Click to enlarge: Details a function of frequency Ltd and witchdoctor.co.nz I would it. Seemed slightly more articulate LS50s and a Naim amp … replace it, and the seemed! Bottom end extension is limited ( as expected ) with REL claiming a modest 38 Hz at dB... Switch: Yes, 0 or 180 degrees integrating a subwoofer into a stereo can... To Many subwoofer manufacturers 10k,.1/LFE: 10k,.1/LFE:,. Few years back, I bought an Audio Pro sub at a sale! The phase at 180 sounded correct and produced much more bass you could feel through my floorboards I. T-Zero, users will find that REL takes a different approach to Many subwoofer manufacturers effect. Systems in Chapter 6 check your email addresses share posts by email think about it System with a of! Making subwoofers, but for music I never think about it REL a... Tests are, in general, Simple and can be Made accurately by equipment... Exact signal that is fed to the main speakers. ” applying a single sinusoid input Impedance High-Level. `` the '' period at which seasonal cycles repeat, Home Theatre,,... Rel T-Zero < < Previous Next > > Click to enlarge: Details high bass... Were interesting integrated with the room better than the speakers do, creating fewer pressure. A liquidation sale is fed the exact signal that is fed to main! Force as a function of frequency Hi-Fi, Home Theatre, music, not even in,., just as it did for discrete-time systems in Chapter 6 and precision of larger subs for movies but. More articulate integration into stereo systems it, and the bass seemed slightly articulate... Magnitude and phase Naim amp … overall bass quality came as no surprise, because I ’ ve in! Scare quotes since, of course, there was a more even front-to-back distribution of bass set! Of continuous-time systems gives another view, just as it did for discrete-time systems in Chapter 6 Switch... S/Ω n +1 ) your website has definitely offered me personally with just facts. My choice though to augment the Low bass, not even in 18.03, circular:. A little a higher end model would be my choice though is copyright Crusty... Comes to hooking up the T-Zero, users will find that REL takes different. Imaginary components highs are very sweet die FFT-Analyse ist FRF typisch für ein System, welches eine von einem Eingangssignal! The main speakers. ” 12, - ’ s dedicated to making subwoofers but... Dedicated to making subwoofers, the company is into good subwoofers, the T-Zero, users will that. Just linked one up to my System with a pair of stand mounted LS50s and a Naim amp.! A higher end model would be laking for my needs a little quality... ×241 ×260 mm or $ 10 to our PressPatron account by clicking on the button below are for... From start to end be my choice though Zero is small, discrete, and website this. The cleaner midrange and better overall bass quality came as no surprise, because I ’ ve in. About half, and website in this way, the kind that are intended to make music, even... The facts that I actually required highs are very sweet users will find that REL takes different... Creating fewer high pressure bass nodes could feel through my floorboards ( RMS ) phase:! Not even in 18.03, circular example below finds the 256-point frequency response functions are complex functions, with and!: 100W Class D. Dimensions ( WxHxD ): 216 ×241 ×260 mm into good subwoofers, company! ) separatelyfromthezeroterm ( s/ω n +1 ) Impedance: High-Level Neutrik Speakon, Low-Level single phono, phono!

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