Posts tagged ‘Vox Amplification’

18/06/2020

Review: Vox VX15-GT

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The new Vox VX15-GT (street price in Finland approx. 155 €) is an ultra-light, modelling practice amp with a 15-watt power amp.

The VX15-GT shares the control panel and signal-processing blocks with its larger brother, the VX50-GTV, but with one crucial difference. While the larger combo’s preamp section utilises Vox’ proprietary Nutube – a modern, low voltage tube – the VX15-GT uses Vox’ patented VET (Virtual Element Technology) digital modelling architecture.

The Vox VX15-GT’s astonishingly low weight (of just under four kilos) is achieved by using a special cabinet that is molded completely from ABS-plastic, as well as the use of a modern, lightweight power amplifier.

The single speaker is a 6.5-inch Vox unit.

The combo is powered by 12 volts DC from an external, laptop style AC adapter.

The internal preset memory holds 11 slots for factory presets (one per amp model) plus two storable user presets. By connecting an optional Vox VFS5 footswitch the number of user presets can be increased to eight.

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The Vox VX15-GT’s top-facing control panel sports the typical control layout of most modelling practice amps:

Starting from the left we find an E-tuner above the guitar input. The tuner LEDs double as preset programme indicators – when all LEDS are off the combo is in manual mode, with all parameters corresponding to the current knob positions. The amp selector offers you ten different amplifier models – one Fender, two Dumbles, two Voxes, three Marshalls, one Soldano and one Mesa/Boogie. The Line setting disconnects the amp modelling section, so you can use the VX15-GT to amplify a line level signal, such as a synthesiser.

The four smaller knobs in the top row control the usual amplifier functions, namely gain, two-band EQ and programme volume.

The Modulation control lets you choose and adjust one of four different modulation effects – chorus, flanger, phaser (the abbreviation ”ORG” stands for the colour orange) and tremolo. The Modulation knob sweeps each effect’s speed from very slow to very fast. Here’s an audio clip running through the four modulation types, starting with the modulation section off:

The Delay/Reverb control lets you select one out of two delays or two reverbs. This control adjusts the chosen effect’s intensity (its volume in the mix), while the delay speed and the reverb length is set using the Tap Tempo button. For this clip I have set the delay time to almost full. I start off with a dry example and then play two examples of each effect, one with low and the other with high intensity:

As a demo song I recorded short cover version of the Weeknd’s song ”Blinding Lights”. All guitar tracks were played on a Gibson Melody Maker SG and recorded with a Shure SM57. I used only the Vox VX15-GT’s own effects:

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Once I got over the unusual, all-plastic construction of the new Vox combo, I was really taken with the range of different sounds and the decent amounts of volume the VX15-GT has to offer.

This is a very inspiring and lightweight package, which, in my view, will work best as a practice (or teaching) guitar combo or in a small home studio setting.

One ”hidden”, but very nifty, feature that I haven’t mentioned is the very efficient, built-in noise suppressor. I was able to use single-coil pickups in the highest gain settings, without any 50-cycle hum!

You cannot compare the 15 watts of solid state power output to the full-on blast of an all-valve Vox AC15, but stick a decent microphone in front of it and you could even use the VX15-GT for the occasional pub gig.

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Vox VX15-GT

Street price around 155 €

Finnish distributor: EM Nordic

Pros:

+ lightweight, ABS cabinet

+ decent presets

+ wide variety of amps

+ decent effects

+ sound

Cons:

– lightweight, ABS cabinetOSave

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15/06/2020

Vox VX15 GT – The Kitarablogi-video

DEMO SONG

A short cover version of the Weeknd’s song ”Blinding Lights”.

• All guitar tracks played on a Gibson Melody Maker SG and recorded with a Shure SM57.

• Only the Vox VX15-GT’s effects were used.

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Vox VX15 GT

• 15 Watts RMS @ 4 Ohms

• 1 x 6.5″ speaker

• Inputs: 1 x guitar; 1 x aux in; 1 x footswitch

• Outputs: 1 x headphones

• Controls: Amp Selector, Volume, Gain, Treble, Bass, Power Level, Modulation, Delay/Reverb, Program Selector

• 11 (10 + Line) amp models (VET: Virtual Element Technology)

• Effects: Modulation (Chorus, Flanger, Phaser, Tremolo), Delay/Reverb (Analogue Delay, Tape Echo, Spring, Hall)

• Programmes: 11 x Preset; 2 x User (using the VFS5 footswitch increases the number of user programmes to 8)

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11/06/2020

Vox VX15 GT ::: Testi tulossa ::: Working on a review

Vox VX15 GT

• 15 Watts RMS @ 4 Ohms

• 1 x 6.5″ speaker

• Inputs: 1 x guitar; 1 x aux in; 1 x footswitch

• Outputs: 1 x headphones

• Controls: Amp Selector, Volume, Gain, Treble, Bass, Power Level, Modulation, Delay/Reverb, Program Selector

• 11 (10 + Line) amp models (VET: Virtual Element Technology)

• Effects: Modulation (Chorus, Flanger, Phaser, Tremolo), Delay/Reverb (Analogue Delay, Tape Echo, Spring, Hall)

• Programmes: 11 x Preset; 2 x User (using the VFS5 footswitch increases the number of user programmes to 8)

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04/05/2016

Review: Vox AV15

Vox AV15 – logo

Vox Amplification’s new AV-series comprises three affordable guitar combos. The Vox AV15, AV30 and AV60 – named according to their power amp wattage – are modelling valve hybrid amplifiers that combine the best elements of solid state and tube technology.

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Vox AV15 – front view new

KitarablogiDotCom took the smallest of the trio, the Vox AV15 (street price in Finland approx. 269 €) for a spin.

The AV15 is a compact little combo (height: 37 cm, width: 45 cm, depth: 23 cm), weighing in at just below eight kilos.

AV15 cabinet construction

The combo’s cabinet has taken a big leaf out of the book of hi-fi speaker construction. Normally a guitar cab is meant to add its own bit of tonal modification into the mix, but when dealing with a modelling amplifier meant to imitate a number of different amp and speaker configurations, the more linear frequency response of a bass reflex cabinet is highly desirable.

Vox AV15 – back angle

Vox AV15 – back panel

The only thing you’ll find on the Vox AV15’s back panel is the connector for the amp’s external power supply unit (12 VDC, included).

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Vox AV15 – control panel 2 LRG

The Preamp Circuit-switch lets you select one of the eight amp models offered by the Vox. The selection takes you from Fender Twin-style cleans, and Vox- and Marshall-type crunch, all the way to Rectifier-like high gain tones.

You can fine-tune your tone using the three-band EQ section. The AV15 also comes equipped with an effects section made up of three different effects – reverb, delay and chorus (called modulation on the front panel). You are free to choose any or all of the effects. Each effect allows you to control a second parameter (in addition to the effect level) by keeping the respective effect’s effect button depressed while turning the Effects-control. You can change the modulation speed of the chorus, the delay time for the delay effect, and the length of the reverb tail of the reverb effect. The effects are the only digital bits in the AV-combo’s architecture, the rest of the Vox’ signal path – including the amp modelling – is kept all-analogue.

Here are three short clips illustrating the AV15’s effects (Gibson Les Paul Junior, Shure SM57):

CHORUS (with a little added reverb)

DELAY

REVERB

It may seem a bit unusual, but the AV15 features three different ”volume controls”, which all have a different bearing on the combo’s sound:

The Gain-knob sets the signal level before the signal is sent to the preamp’s valve stage. Low Gain settings result in a clean sound, while higher Gain settings will lead to preamp break-up and (depending on the chosen amp model) distortion. The Volume-control adjusts the signal level right in front of the power amp’s tube stage. Lower Volume settings will give you a clean and dynamic signal, while higher settings will bring in some power amp compression and saturation (= distortion). The last volume knob – called Power Level on the Vox AV15 – determines the final volume level in your room (or in your headphones).

Vox AV15 – tube and switches LRG

While its bigger siblings – the AV30 and the AV60 – feature two valves in their architecture (one for the preamp, one for the power amp), the smaller Vox AV15 makes do with just a single tube for both pre- and power amp duties. This is made possible by the way the good-old 12AX7-valve is constructed, offering you two triodes in one single tube. This means, you can split this valve type to perform two jobs simultaneously.

This Vox’ Valve Stage-section features four small slider switches that you can use to modify the way the two valve stages react and sound:

The Pre Amp side of things sports a Bright-switch for adding sparkle to your top end, as well as a Fat-switch that will boost the bass response.

The switches labelled ”Power Amp” really do make a significant difference to this combo’s ”feel”. The Bias- and Reactor-switches let you select how much the power amp’s tube section is ”pushed” and how much power amp compression will be audible.

Listen to these two sound clips – clean and crunch – to get an idea of how the Valve Stage switches change the combo’s sound (Gibson Les Paul Junior, Shure SM57). Both clips start with all the switches in the left position. Then I put one switch after the other to its right position (starting with the Bright-switch, and continuing left to right):

Vox AV15 – front angle 2

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Vox AV15 – front angle 3

Snobbism seems to be the fashion of the day – we’ve got cork sniffers, we’ve got vinyl snobs, and we’ve got valve amp anoraks.

But in our heart of hearts, most of us ”old farts” would have been more than happy, if we would have had such a great-sounding and versatile amp as the Vox AV15 when we started playing in the 1970s and 80s! The AV15 really wins you over with its array of inspiring tones and its affordable price tag.

The Vox AV15 is a real amp, not a plastic toy sucking all of the sheer joy of playing out of an eager novice. Vox AV-series hybrid combos can also serve more advanced players as fun living room amps, they can be used for backstage warm-up, and they also make a good figure as home studio amps (as you can hear in the demo songs).

BLUES demo

Rhythm guitars: Fender Telecaster (left channel) & Epiphone Casino (right channel)

Lead guitar: Fender Stratocaster

ROCK demo

Rhythm guitars: Fender Telecaster (left channel) & Gibson Les Paul Junior (right channel)

Lead guitar: Gibson Melody Maker SG

METAL demo

Rhythm guitars: Gibson Melody Maker SG (left channel) & Fender Stratocaster (right channel)

Lead guitar: Hamer USA Studio Custom

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Vox AV15 – front angle 4

In my opinion Vox Amplification’s new AV15 is a fine choice as a practice amp, for guitar teachers, or for school bands. The affordable Vox AV15 is easy to use and sounds great.

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Vox AV15

Finnish street price approx. 269 €

Finnish distributor: EM Nordic

A big ”thank you” goes to DLX Music Helsinki for the loan of the review amp!

Pros:

+ compact

+ lightweight

+ versatile

+ Valve Stage-section

+ sound

+ value-for-money

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21/04/2016

Testipenkissä: Vox AV15

Vox AV15 – logo

Vox Amplificationin upouusi AV-sarja koostuu kolmesta edullisesta kombovahvistimesta kitaralle. Lähtötehonsa mukaan nimetyt Vox AV15-, AV30- ja AV60 -vahvistimet ovat mallintavia putkihybridejä, jotka yhdistävät puolijohde- ja putkielektroniikan parhaimpia puolia.

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Vox AV15 – front view new

Kitarablogi sai testiin Vox AV15 -kombon (arvioitu katuhinta noin 269 €), joka on AV-perheen kuopus.

AV15 on mukavan kompakti kokonaisuus (korkeus: 37 cm, leveys: 45 cm, syvyys: 23 cm), ja se painaa vain hieman alle kahdeksan kiloa.

AV15 cabinet construction

Vahvistinkotelon (= kaiutinkaapin) rakenne on selvästi ottanut inspiraatiota hifi-kaapeista. Tavallisesti kitarakaappi antaa oman lisämausteensa lopulliselle kitarasoundille, mutta AV-sarjan kaltaisissa mallintavissa vahvistimissa refleksikaapin lineaarisempi taajuusvaste auttaa useiden eri soundien jäljittämisessä.

Vox AV15 – back angle

Vox AV15 – back panel

Vox AV15:n takaseinästä löytyy ainoastaan virtaliitin kombon mukana tulevalle ulkoiselle virtalähteelle (12 V DC).

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Vox AV15 – control panel 2 LRG

Preamp Circuit -kytkimellä saa valittua yhden Vox-kombon kahdeksasta vahvistinmallista. Tarjolla on riittävästi vaihtoehtoja Fender Twin -tyylisestä cleanista, sekä Vox- ja Marshall-mallinnuksien kautta jopa Rectifier-tyyliseen High Gain -meininkiin.

Vahvistinsoundien maustamiseksi tämä Voxi tarjoaa kolmikaistaisen EQ-osaston, sekä kolme efektiä (chorus, viive, kaiku). Kaikkia kolmea efektiä voi käyttää samanaikaisesti. Jokaisessa efektissä pystyy säätämään efektitason lisäksi vielä toisen parametrin (pitämällä efektinappia alas painettuna, samalla kun kääntää Effects-säädintä) – vatkaamisnopeutta choruksessa, viiveaikaa delayssä, sekä kaiun pituutta reverbissä. AV-kombon efektit ovat muuten vahvistimen ainoat digitaalisesti toteutetut osat, Voxin muu signaalitie – mallinnusta myöten – on täysin analoginen.

Tässä kolme lyhyttä pätkää efektiosaston soundeista (Gibson Les Paul Junior, Shure SM57):

CHORUS (ja pieni annos kaikua)

DELAY

REVERB

Hieman epätavallisesti löytyy AV15-kombosta jopa kolme eri ”volyymi-säädintä”, joiden toiminta vaikuttaa soundiin eri lailla:

Gain-säätimellä säädetään tulosignaalin tasoa, ennen kun signaali menee etuvahvistimen putkiasteelle. Pienillä Gain-asetuksilla soundi pysyy puhtaana, kun taas isommat Gain-asetukset tuovat signaaliin rosoisuutta ja/tai (vahvistinmallista riippuen) selkeätä etuastesäröä. Kombon Volume-säätimen rooli taas on säätää etuvahvistimesta tulevan signaalin tasoa juuri ennen päätevahvistimen putkiastetta. Pienillä Volume-asetuksilla signaali pysyy puhtaampana ja dynaamisempana, kun taas isot Volume-asetukset lisäävät signaaliin hieman kompressiota ja päätevahvistimen saturaatiota (= säröä). Power Level -nupilla sitten säädetään kuinka kovalla kitarasoittosi kuuluu kaiuttimen (tai kuulokkeiden) kautta.

Vox AV15 – tube and switches LRG

Vaikka AV30:ssä ja AV60:ssä on kahdet putket – yksi etu- ja toinen päätevahvistimelle – Vox AV15 tulee toimeen vain yhdellä putkella, joka toimii sekä etu- että päätevahvistimessa. Tämän mahdollistaa perinteikkään 12AX7-putken nerokas rakenne, joka tarjoaa kaksi erillistä triodia samassa kuoressa, minkä ansiosta tätä putkityyppiä voi ja saa splitata.

Valve Stage -osio tarjoaa neljä liukukytkintä, joilla voi vaikuttaa suoraan putkiasteiden toimintaan ja soundiin:

Etuvahvistimelle (Pre Amp) löytyy sekä Bright-kytkin diskantin lisäämiseksi että Fat-kytkin, jolla bassontoistoa saadaan muhkeammaksi.

Päätevahvistimen (Power Amp) kytkimillä on vielä suurempi vaikutus vahvistimen soundiin ja ”tuntumaan”. Bias- ja Reactor-kytkimillä valitaan kuinka ”kuumana” päätevahvistimen putkipuolikas toimii ja miten dynaamisesti päätevahvistin reagoi etuvahvistimesta tulevaan signaaliin.

Tässä kaksi ääniesimerkkiä – clean ja crunch – joissa aloitetaan kaikilla kytkimillä vasemmassa asennossa, ja jossa laitan sitten kytkimet peräkkäin (aloitan Bright-kytkimestä) oikeaan asentoon (Gibson Les Paul Junior, Shure SM57):

Vox AV15 – front angle 2

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Vox AV15 – front angle 3

Snobismi näyttää olevan tällä hetkellä muodissa – on viinisnobismi, on vinyylisnobismi, on putkisnobismi.

Mutta kun ollaan ihan rehellisiä olen ihan varma, että moni meistä ”vanhoista pieruista” olisi ollut enemmän kuin onnellinen, jos hänellä olisi ollut aloittelijana 1970-/80-luvun taitteessa ollut näin hieno vekotin kuin Vox AV15! AV15 on nimittäin hyvin monipuolinen – ja todella hyvällä soundillaan vakuuttava – hybridikombo erittäin soittajaystävällisellä hinnalla.

Vox AV15 on kunnon vahvistin kunnon soundilla, eikä muovinen lelu, joka lannistaisi kitarauntuvikon heti alkumetreillä. Varttuneellekin soittajalle AV-sarjalaiset voivat olla järkevä hankinta olohuonekomboksi tai backstage-lämmittelyyn, ja myös kotistudiossa AV15-kombosta on paljon iloa (kuten demobiiseissä kuulee).

BLUES-demo

Komppikitarat: Fender Telecaster (vasen kanava) ja Epiphone Casino (oikea kanava)

Soolokitara: Fender Stratocaster

ROCK-demo

Komppikitarat: Fender Telecaster (vasen kanava) ja Gibson Les Paul Junior (oikea kanava)

Soolokitara: Gibson Melody Maker SG

METAL-demo

Komppikitarat: Gibson Melody Maker SG (vasen kanava) ja Fender Stratocaster (oikea kanava)

Soolokitara: Hamer USA Studio Custom

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Vox AV15 – front angle 4

Minun mielestäni Vox Amplificationin AV-uutuussarja on oiva valinta esimerkiksi omaksi harjoitusvahvistimeksi, opetuskäyttöön tai vaikkapa bändikerholaisille. Edullinen Vox AV15 on helppo käyttää ja se kuulostaa mielestäni todella hyvältä.

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Vox AV15

Arvioitu katuhinta noin 269 €

Maahantuoja: EM Nordic

Suuri kiitos DLX Musiikille testikombon lainaamisesta!

Plussat:

+ kompakti

+ kevyt

+ monipuolinen

+ Valve Stage -osio

+ soundi

+ hinta-laatu-suhde

20/04/2016

Two Kitarablogi-videos: Vox AV15

Vox AV15 – tube and switches LRG

Contact: EM Nordic

12/04/2016

Now on SoundCloud: Vox AV15

Vox AV15 control panel

Contact: EM Nordic

11/04/2016

Tulossa… +++ Coming soon… +++ Vox AV15

Vox AV15

Lisätiedot: EM Nordic