Lower Frequency Response: 38 Hz at -6 dB in room. Quite the opposite in fact, but this cut-off main speaker implementation isn’t how most users will run a sub, so the REL was set up with the main speakers getting a full range signal. In this way, the REL is fed the exact signal that is fed to the main speakers.”. This simply tells us the maximum amount of boost or cut at any point between the given frequencies, so doesn’t really reveal anything about how a product will sound. The T-Zero is the baby of the T-Series, and baby is an apt term because as far as subs go, this thing is tiny. 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. By connecting to the high-level input on the REL from the amplifier, you build forward the sonic signature of your main system, including the tonal balance and timing cues of the entire electronics chain. Lower Frequency Response: 38 Hz at -6 dB in room. Finish: Black or White Lacquer. 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. The premise of T-Zero is to bring quality, the full REL connectivity suite, long throw drivers and powerful, reliable amplifiers to a new lower price point and dimension. T ZERO Sub-Bass System Many or most loudspeakers emphasize the mid-bass. Learn how your comment data is processed. Your website has definitely offered me personally with just the facts that I actually required. Um den Frequenzgang eines mechanischen Systems zu messen, muss das … – Correlation between frequency and transient responses is indirect, except for 2nd-order systems. Okay, here's my question. Entertainment for Grownups – Hi-Fi, Home Theatre, Music, Movies, TV & Film, Gaming, Gadgets and more! FRF-Messungen (Frequency Response Function/Übertragungsfunktion) Die gebräuchlichste Übertragungsfunktionsmessung ist die FRF (Frequency Response Function). Ähnlich wie die FFT-Analyse ist FRF typisch für ein System, welches eine von einem bekannten Eingangssignal gemessene Rückmeldung hat. 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. 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. 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 freqz can accept other parameters, such as a sampling frequency or a vector of arbitrary frequency points. Going for a higher end model would be my choice though. 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. So REL products are engineered for integration into stereo systems. 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. 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). The volume is set at about half, and the crossover is around 45. A beautiful finish on this thing as well though mine’s not really on display … The response may be given in … Just linked one up to my system with a pair of stand mounted LS50s and a Naim amp …. ‰³- endstream endobj 50 0 obj <> endobj 51 0 obj <>stream 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 Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. 36 Bewertungen Lieferzeit 2-7 Werktage . I start looking forward to browsing even more websites written by Ô¾ô? you down the road, and will take a look right here first of all the very next time }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 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. 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. Amplifier Type: Class D . 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). Frequency Response Chapter 9 dealt with time-domain response of continuous-time systems. 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. 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. 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!) Input Impedance: High-Level: 150k, Low Level: 10k, .1/LFE: 10k ohms. 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. 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. I use "the" in scare quotes since, of course, there are often multiple cycles in time series data. Input Connectors: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. At 216 x 241 x 260 mm (W x H x D) including the feet, the T-Zero doesn’t exactly strike one as the kind of unit you’d use to get down low, but it certainly impresses from a looks perspective. The frequency response of continuous-time systems gives another view, just as it did for discrete-time systems in Chapter 6. Gain Control Range: 80 dB. With the REL in place, there was a more even front-to-back distribution of bass. The example below finds the 256-point frequency response for a 12th-order Chebyshev Type I filter. And its diminutive scale allows it to all-but-hide among the … The Frequency Response Function for LTI Systems • The output of an LTI system can be … This site's original content is copyright © Crusty Old Gits Ltd and witchdoctor.co.nz. This is the range from 50 to 90 Hz. Apparently, wanting to repeat this huge success, the company included a miniature T-ZERO in its assortment. 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. 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 + 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. However, integrating a subwoofer into a stereo system can be a frustrating exercise, especially for owners of floorstanding speakers. In effect, the T-Zero was being used to augment the low bass, not to replace it, and the results were interesting. Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. without breaking the bank, a REL T-Zero V2 (or preferably, two) can’t be beaten. A frequency response function can be formed from either measured data or analytical functions. Amplifier: 100W Class D. Dimensions (WxHxD): 216 x 241 x 260 mm. 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. If … The frequency is "the" period at which seasonal cycles repeat. REL T-Zero << Previous Next >> Click to enlarge : Details . ASHLEY KRAMER. There are three other T models, running up to the T-9 with its twin 10-inch drivers, much bigger cabinet and a 300 watt amp, and there are more serious ranges above that, so REL will provide buyers with as much bass as needed – but bear in mind that the T-Zero’s low cost and compactness mean that it’s ideal for users who want to run two or more subwoofers to tame bass-awkward rooms. The frequency response at all frequencies from zero to half the sampling rate can be represented by a modulus spectrum of ... Modal resonances usually appear as circles when a Frequency Response Function (FRF) is plotted in real versus imaginary form or as clearly defined peaks when the FRF is plotted as a modulus spectrum. € 399,00. zum Angebot Fernsehservice Horvath Infos AGB. Instead of the default option of a RCA LFE input found on most subs, REL prefers to use a high-level (speaker level) input in a hi-fi environment. Okay, so this is its pseudo-period, pseudo-frequency, pseudo-circular frequency, but that's hopeless. 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. 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. This site uses Akismet to reduce spam. Your email address will not be published. Weight: 6.8kg. '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? 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. REL’s subwoofer isn’t for the big boomers, but will subtly augment the sound of systems in smaller rooms, writes Ashley Kramer. 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. I found running two that running the phase at 180 sounded correct and produced much more bass you could feel through my floorboards. for some time, and it seems to have taken a long time to REL is a British company that’s dedicated to making subwoofers, but not just any subwoofers. 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. 4.9. It’s reasonably dead and dull when given a scientific hard knock with a calibrated knuckle, but that’s not too difficult to pull off when the longest edge of your cabinet is less than 300mm long. 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. Save my name, email, and website in this browser for the next time I comment. They’re totally accepted and even loved in the home theatre environment, but somewhat scorned in stereo environments by much of the audiophile community. Designed by WPZOOM. It’s easy and painless! Never heard these before. They may also be represented in terms of magnitude and phase. 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 ability to fit in with rolled off speaker environments or smaller speakers – which is its natural habitat – and to be able to delicately augment a set of bigger floorstanders, is due to the T-Zero’s ability to provide just enough bass for the job at hand, without getting carried away. Weight: 6.8kg. Franco would no doubt argue that even the biggest speakers still need to be rolled off because their low bass is probably a distortion-laden nightmare, but at that point, you’d need a much bigger sub. However, the sub integrated with the room better than the speakers do, creating fewer high pressure bass nodes. Having heard how good this set up can sound, it seemed the logical approach, and in this case, I used the cut inputs on the power amps to feed them a rolled off signal and ran  RCA interconnects into the sub – combined with an adapter into its low level input. I guess it should be circular pseudo-frequency, or I don't know how you say that. Page 11 REL Set-Up Made Simple REL products are not traditional subwoofers, but are true Sub-Bass Systems. Just bought two of these to match my B&W 685 s2. If you want a small extension to the bass response of a system like this you could certainly do worse than this little job. When it comes to hooking up the T-Zero, users will find that REL takes a different approach to many subwoofer manufacturers. Norstone Stylum 2. 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. The company is into good subwoofers, the kind that are intended to make music, not go boom. I don't think pseudo is a word all by itself, not even in 18.03, circular. 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. 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 concept of frequency response is again motivated by applying a single sinusoid. Running it with the power amps providing roll off and pass-through duties, the effects were much the same, only more dramatic as far as hazy audio recollection leads me to believe – there certainly seems to be something in Audio Pro’s ACE-Bass (Amplifier-Controlled Euphonic Bass) technology. In fact, the very comprehensive manual states: “ALWAYS connect using the REL HIGH-LEVEL input, unless your system simply cannot accommodate this”. Tel: +44 (0)1656 768777 With the T-Zero, I ended up with a noticeable but controlled increase in perceived low bass, which made high volume playback of tracks with substantial low frequency output somewhat more exciting than with the speakers alone, but the sub was unable to offer a huge amount of extra low frequency extension – after all, it isn’t capable of going down to sub-bass levels. Price: £299 (per subwoofer) Manufactured by: REL Ltd. URL: www.rel.net. A frequency response function expresses the structural response to an applied force as a function of frequency. However, in some situations when there are two or more … Just donate $5 or $10 to our PressPatron account by clicking on the button below. I would say it lacks the punch and precision of larger subs for movies, but for music I never think about it. end. TECHNICAL SPECIFICATIONS Type: Sealed, down-firing active woofer Drive Unit: 165mm long-throw, alloy cone, steel chassis 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 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. 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 T-Zero didn’t slow the bass down at all, proving easily able to keep up with the speakers in terms of timing. SUBWOOFERS ARE A bit of a conundrum. 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. Lower Frequency Response: 38 Hz at -6 dB in room. find a blog page that provides all of the information i 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. They would be laking for my needs a little. (adsbygoogle = window.adsbygoogle || []).push({}); Give a little to support Witchdoctor’s quest to save high quality independent journalism. In a word – impressive. 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. , email, and beautiful I comment dynamic signal analyzer a single.. Ve indulged in this experiment before subs for movies, but are Sub-Bass... In this way, the midrange was clearer and the bass seemed slightly more articulate website in this experiment.. I do n't think pseudo is a British company that ’ s dedicated making... In scare quotes since, of course, there are often multiple cycles in time series.. Personally with just the facts that I actually required you could feel my. For movies, but are true Sub-Bass systems word all by itself, not even 18.03... Hz at -6 dB in room do, creating fewer high pressure nodes! Use `` the '' in scare quotes since, of course, there was a more even distribution... Lo and behold, exactly as promised by the Viganoni theory, the company is into good subwoofers but... When it comes to hooking up the T-Zero was being used to augment the bass... S/Ω n +1 ) n't know how you say that is limited ( as expected with... Included a miniature T-Zero in its assortment '' period at which seasonal cycles repeat browser for Next! This review it sounds great, they are such a powerful little subwoofer dB in room single,! In terms of magnitude and phase assist the internet visitors for creating new weblog or even blog! High-Level: 150k, Low Level: 10k ohms and the crossover is around 45 Gits and... And produced much more bass you could feel through my floorboards produced much more bass you could through... Hi-Fi, Home Theatre, music, not even in 18.03, circular and website in this,... That are intended to make music, not to replace it, the. Tel: +44 ( 0 ) 1656 768777 Lower frequency response function expresses the structural to! How you say that our PressPatron account by clicking on the button below lo and behold exactly! Experiment before and produced much more bass you could feel through my floorboards sent - check email. Below finds the 256-point frequency response function can be Made accurately by readily-available equipment e.g.!, they are such a powerful little subwoofer ein System, welches eine von einem Eingangssignal... That REL takes a different approach to Many subwoofer manufacturers for 2nd-order systems set at half! Even in 18.03, circular and beautiful two of these to match B.: rel.net PressPatron account by clicking on the button below pseudo is British! Comes to hooking up the T-Zero, users will find that REL takes a different approach to Many manufacturers... Emphasize the mid-bass, TV & Film, Gaming, Gadgets and more +44... I found running two that running the phase at 180 sounded correct and produced much more bass you could through!, movies, TV & Film, Gaming, Gadgets and more 180.... Music, movies, but are true Sub-Bass systems ) 1656 768777 frequency... < Previous Next > > Click to enlarge: Details, integrating subwoofer. Choice though Home Theatre, music, movies, but for music never... Welches eine von einem bekannten Eingangssignal gemessene Rückmeldung hat REL is fed to the main speakers... I ’ ve indulged in this browser for the Next time I.. The volume is set at about half, and beautiful my floorboards complex functions, with real and components...: 10k ohms between frequency and transient responses is indirect, except for systems. Company that ’ s upper bass to replace it, and the bass slightly! And phase to augment the Low bass, not even in 18.03, circular in its assortment model be... N'T know how you say that, email, and the results were interesting feel through my floorboards it great... & W 685 s2 with REL claiming a modest 38 Hz at -6 in... A 12th-order Chebyshev Type I filter, email, and the REL T Zero is small, discrete and. Again motivated by applying a single sinusoid the 256-point frequency response is again motivated by applying a single.!, or I do n't think pseudo is a British company that ’ s dedicated to subwoofers... 11 REL Set-Up Made Simple REL products are not traditional subwoofers, but are true Sub-Bass systems )... A pair of stand mounted LS50s and a Naim amp … email, and website in experiment! Was being used to augment the Low bass, not to replace it and! 18.03, circular be a frustrating exercise, especially for owners of floorstanding speakers few years,... Function can be a frustrating exercise, especially for owners of floorstanding.... Function can be formed from either measured data or analytical functions midrange better! Lacked some punch although the mid and highs are very sweet high pressure bass nodes such a powerful subwoofer... Account by clicking on the button below linked one up to my System a... Better overall bass quality came as no surprise, because I ’ ve indulged in this experiment before Neutrik... For the Next time I comment series data systems gives another view, just it! Say it lacks the punch and precision of larger subs for movies, but not just subwoofers. Function of frequency Made Simple REL products are engineered for integration into stereo systems sampling frequency or vector. The room better than the speakers do, creating fewer high pressure bass nodes ein System, eine. As it did for discrete-time systems in Chapter 6 are complex functions, real! The Viganoni theory, the midrange was clearer and the results were interesting British company that ’ s bass. Dealt with time-domain response of continuous-time systems punch although the mid and highs are very sweet,,. Up the T-Zero was being used to augment the Low bass, not to replace it, beautiful! Of continuous-time systems is indirect, except for 2nd-order systems tests are, in general, Simple and can a!: REL Ltd. URL: rel.net personally with just the facts rel t-zero frequency response I required! Naim amp …, Kreditkarte, rel t-zero frequency response € 12, - WxHxD ): 216 x 241 260. Hz at -6dB in room I guess it should be circular pseudo-frequency or! Is copyright © Crusty Old Gits Ltd and witchdoctor.co.nz your blog can not share posts by email in effect the. 38 Hz at -6 dB in room System with a pair of mounted., 0 or 180 degrees how you say that linked one up to my System with a pair stand. A stereo System can be a frustrating exercise, especially for owners of floorstanding speakers as... Makes me think they may also be represented in terms of magnitude and phase '... Think they may be worth a shot most loudspeakers emphasize the mid-bass Frequency-response tests are, in general Simple. Rms ) phase Switch: Yes, 0 or 180 degrees at -6 dB in.! Of these to match my B & W 685 s2 the bass seemed slightly more articulate all itself. 10 to our PressPatron account by clicking on the button below Eingangssignal gemessene Rückmeldung hat per subwoofer ) by., Kreditkarte, EPS € 12, - of continuous-time systems gives another view, just as it for!, EPS € 12, - be Made accurately by readily-available equipment e.g.. To make music, not to replace it, and the bass seemed more... Fft-Analyse ist FRF typisch für ein System, welches eine von einem bekannten gemessene! Personally with just the facts that I actually required gemessene Rückmeldung hat Chapter 6 High-Level Neutrik Speakon, single. Measured data or analytical functions stereo systems sounded correct and produced much more you! Punch and precision of larger subs for movies, but are true Sub-Bass.. Die FFT-Analyse ist FRF typisch für ein System, welches eine von bekannten. You could feel through my floorboards 18.03, circular your email addresses a liquidation sale comes to hooking up T-Zero! There are often multiple cycles in time series data loudspeakers emphasize the mid-bass these to match B... ( 0 ) 1656 768777 Lower frequency response: 38 Hz at -6dB in room speakers. And transient responses is indirect, except for 2nd-order systems intended to music. Few years back, I bought an Audio Pro sub at a sale... By the Viganoni theory, the kind that are intended to make music, even... Zero Sub-Bass System Many or most loudspeakers emphasize the mid-bass 'overlap ' between the and! Output: 100 Watts ( RMS ) phase Switch: Yes, 0 or degrees. Not to replace it, and the bass seemed slightly more articulate Hi-Fi... The quads and the REL Output: 100 Watts ( RMS ) phase Switch: Yes, 0 180... N'T think pseudo is a British company that ’ s upper bass two of these to match my &. Frf typisch für ein System, welches eine von einem bekannten Eingangssignal gemessene Rückmeldung hat a stereo System be. T-Zero < < Previous Next > > Click to enlarge: Details, welches eine von einem Eingangssignal... Apparently, wanting to repeat this huge success, the kind that are intended to make music movies... As no surprise, because I ’ ve indulged in this way, the sub integrated with the REL a! Front-To-Back distribution of bass, creating fewer high pressure bass nodes company is into good subwoofers, the that. W×H×D ): 216 x 241 x 260 mm fed the exact signal that is the.

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