Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Maverick Audio TubeMagic A1 (Hybrid Amp) - Discussion and Review Thread
New Posts  All Forums:Forum Nav:

Maverick Audio TubeMagic A1 (Hybrid Amp) - Discussion and Review Thread - Page 14

post #196 of 227

Just upgraded to the factory matched Raytheon 6ak5, it does seem better but without a way to quickly AB test them with the old tubes it's hard to say for sure :)

Anyone know what the gain is on this amp?  I just got some modded Fostex T50RP and it seems to pair great and has plenty of power for them.  I have the dial at about 9:15 for music listening and it's loud.

I'm still waiting to receive my hifimediy dac, slow shipping 

post #197 of 227
Quote:
Originally Posted by uncola View Post
 

Just upgraded to the factory matched Raytheon 6ak5, it does seem better but without a way to quickly AB test them with the old tubes it's hard to say for sure :)

Anyone know what the gain is on this amp?  I just got some modded Fostex T50RP and it seems to pair great and has plenty of power for them.  I have the dial at about 9:15 for music listening and it's loud.

I'm still waiting to receive my hifimediy dac, slow shipping

Really? Most of my cans sit at about 9:00 with the A1, but my HE-400 and T50RP's are up near 12:00. I don't find the A1 to be a good match for planars at all, it struggles a lot with these two when compared to the Magni (at half the price).

post #198 of 227

You had me doubting myself so I compared the a1 to my aune t1 again.. the a1 definitely has a fuller sound with richer bass.  Maybe your other amps are higher end than mine hehe.  I was originally going to get the AudioGD 11.32 because it did like 1800 mW into 32 ohms and had the sabre 9018 dac built in but I preferred the enclosure of the A1 and I wanted the speaker amp.  Also I never had a pure tube amp before and Ryan's customer service sounded good.. and the audiogd website is horrible and the ordering process is weird

post #199 of 227

Interesting. My A1 can definitely power them, but I don't think it powers them to authority. It does very well with my other cans though. As far as the volume knob goes... weird. Part of it can be due to how much modding was done on your T50RP's vs mine (when they were in the stock configuration, I didn't have to turn the knobs up as much). Or maybe I'm just deaf :p

post #200 of 227

Just got a new budget dac, the hifimediy sa9023 version.. not the asynchronous one.. it seems to pair really well with the a1 with raytheons..  I was using mobo integrated sound before and the dac makes a huge difference

post #201 of 227

I'm really debating this amp. My Dayton DTA-100a just went out. I've been researching all sorts of options...my realistic budget is $200 max. This pushes that boundary. I have various headphones and earbuds, and already have a FiiO E9 I'm happy with...but I plan on using this amp with my Pioneer SP-BS21's that have a low 84db sensitivity. The Dayton sounded decent at medium volumes and could go fairly loud. I also have a Dayton SUB-100 powered sub I'd like to use...I was doing the hi-level speaker wire inputs...and was hoping to get away from that....thankfully someone posted the line out does not mute with HP's plugged in. I am debating between this and the Emotiva mini-X a-100 ( http://shop.emotiva.com/products/a100 ). That one is pure speaker amp...it doesn't have a power switch on the front which would be nice seeing as my next amp will be placed under my monitor that's on a staples monitor stand where my DTA sat and FiiO E9 still sits...http://www.staples.com/Allsop-Metal-Art-Monitor-Stand/product_489503 .

 

I am going to read through more of the older posts in this thread as I started with the later pages to see what was happening recently. Seems like a lot of good noise about this amp. I wouldn't mind a bassier HP amp experience...though the E9 and the EQ on my Auzen Forte drivers work well together...there is room for more with my bigger headphones. I do want solid power to the speakers though..something that can go decently loud when I want it to be, work with my sub, and be easy to switch on and off. The allure of an "all-in'one" of this item intrigues me and it's output ratings are better than the E9. I do listen to headphones more generally, but like I said I like my E9 setup, it's power and am mostly after the speaker driving experience here.

 

This product is pulling at me, I just have some doubts about the speaker amp side of things. I'll keep reading this thread, and hope to hear from you guys!

post #202 of 227
Quote:
Originally Posted by Thujone View Post
 

Really? Most of my cans sit at about 9:00 with the A1, but my HE-400 and T50RP's are up near 12:00. I don't find the A1 to be a good match for planars at all, it struggles a lot with these two when compared to the Magni (at half the price).


You're all over the forum man! I've been doing a little searching, little as in a few scans on pages nothing extensive, and didn't find any info. Would hooking up the HE4 to the speaker out of a A1 produce a good pairing? I'm looking at different tube options and this is one of them...

post #203 of 227
Quote:
Originally Posted by Soundsgoodtome View Post
 


You're all over the forum man! I've been doing a little searching, little as in a few scans on pages nothing extensive, and didn't find any info. Would hooking up the HE4 to the speaker out of a A1 produce a good pairing? I'm looking at different tube options and this is one of them...

Haha, I'm lurking in the shadows everywhere...

 

Hmm, that's a good question. I never messed with the speaker taps on the A1, nor do I know the specs for the power output. I will have to say though, when I said the A1 doesn't "power them to authority", I have since learned how ludicrous that statement is. If you can get the headphone loud enough, it's got enough power. Period. I should rephrase my statement to say that I don't appreciate the pairing with the orthos I had at the time. The treble was emphasized and the mid bass/lower mids were smeared from the tubes. A very crisp and musical sound, no doubt, but I don't listen to musical music, nor musical headphones. Glitchy electronic and edgy orthos for me :o. Bottom line, I think you'll have plenty of power from the taps on the back, and I know that the taps rely more heavily on the solid state portion of the amp (if not entirely, can't remember) so the sound sig may very well be different than what I was getting from the headphone jack.

post #204 of 227

Hello there,

 

l have an A1+D2 (both full upgrades). l wanted to ask some of the A1 users if they have the same problem l have. l bought both units last Christmas, and ever since then l have been using them on a daily basis. The problem is:

 

When l plug low impedance HPs (e.g. AKG K550, Sennheiser HD558, Philips Fidelio X1, Audio-technica PRO900MK2) on the A1, l have a 'background noise' coming through. lt's not the 'typical' amplifier 'hiss', but like a 'current', 'electric' noise. 

 

As far as l am listening to music at 'normal', 'acceptable' levels, the 'noise' is not audible. However, at night or whenever there are pauses in the music, l can hear the noise. 

 

The noise diminishes when l turn the A1 control knob up to 50% (but it's still there). 

 

However, when l plug the Hifiman HE-400, there is no noise at all (no matter where the volume knob is). Likewise, when l connect a pair of Beyers DT-770s (250 Ohms), the noise is hardly audible (however, for the Beyers l also have to set the volume knob to 50%). 

 

The noise is pretty annoying, especially as l am an avid night listener. l don't know what to do... lt doesn't matter how the A1 is connected: via PC-> D2 -> A1 or via line in (X3/phone-> A1) or via coaxial (X3-> D2 -> A1).

 

Do any of you 'A1 owners' have this same problem? Or maybe my A1 unit has a defect? l asked Ryan (back then in January) but l got no reply.

 

Thanks very much in advance, l would really appreciate your answers.

post #205 of 227
Quote:
Originally Posted by IYAshike View Post
 

Hello there,

 

l have an A1+D2 (both full upgrades). l wanted to ask some of the A1 users if they have the same problem l have. l bought both units last Christmas, and ever since then l have been using them on a daily basis. The problem is:

 

When l plug low impedance HPs (e.g. AKG K550, Sennheiser HD558, Philips Fidelio X1, Audio-technica PRO900MK2) on the A1, l have a 'background noise' coming through. lt's not the 'typical' amplifier 'hiss', but like a 'current', 'electric' noise. 

 

As far as l am listening to music at 'normal', 'acceptable' levels, the 'noise' is not audible. However, at night or whenever there are pauses in the music, l can hear the noise. 

 

The noise diminishes when l turn the A1 control knob up to 50% (but it's still there). 

 

However, when l plug the Hifiman HE-400, there is no noise at all (no matter where the volume knob is). Likewise, when l connect a pair of Beyers DT-770s (250 Ohms), the noise is hardly audible (however, for the Beyers l also have to set the volume knob to 50%). 

 

The noise is pretty annoying, especially as l am an avid night listener. l don't know what to do... lt doesn't matter how the A1 is connected: via PC-> D2 -> A1 or via line in (X3/phone-> A1) or via coaxial (X3-> D2 -> A1).

 

Do any of you 'A1 owners' have this same problem? Or maybe my A1 unit has a defect? l asked Ryan (back then in January) but l got no reply.

 

Thanks very much in advance, l would really appreciate your answers.

 

This thread doesn't get as much visits as it used to. I would post the same thing word-for-word in a general headphone amp discussion or better yet a new thread all together with troubleshoot in the title. Good luck!

post #206 of 227

Oh, thanks for telling me. 

 

To be honest, last night l found out a bit about the problem l have. Apparently, when l said 'noise', l meant 'hum' (sorry, English is not my first language). lt appears that tubes make this 'hum' (although it's funny that l cannot hear it with the HE-400 and l hardly do with the DT-770s...).

 

l might consider getting a SS amplifier (took a look at the Asgard)...

 

Anyway, thanks again for your answer :-) 

post #207 of 227

No hissing or background sounds on my fostex t50rp which are 50ohm impedence on my A1, I have the raytheon matched tubes


Edited by uncola - 4/16/14 at 3:55am
post #208 of 227

My A1 has no hum with the HE-400 (which are 35 Ohms), either... lt appears that l only get the hum on low impedance, dynamic HPs...

post #209 of 227

I got my A1 (with Raytheon tubes) about a month ago and have similar issues.

 

When I first got the amp, it was an audible hum (on everything) and a high frequency tick in the left channel. Then I changed my power cable (changed to 14AWG Quail), added a line conditioner, and some 4 PS audio noise harvesters.

 

Still get the hum but only on my iems, faint but still present on the Mikros 90, and inaudible on the Q701.

 

The noise also is not audible on the monitors the A1 is driving.

post #210 of 227

Thanks for sharing CloudMoose :-)

 

By the way, are you happy with the sound the A1 produces? l like the combo A1+D2, but l don't have much to compare it with (Xonar Phoebus and Fiio X3). l have to say the 'bloody' hum is killing me... l am thinking of getting a solid state amp. (as far as l know, tubes are likely to make this annoying hum). l don't know... ln any case, l will surely look into those solutions you provided. Changing the power cable it's super easy.The other two things you did... not sure how l'll manage to get those here in Geneva... lt would be interesting if you could check if it is only one of the things you did that diminished the noise/hum or if it was the interaction among the three... (Do l make sense?).

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Maverick Audio TubeMagic A1 (Hybrid Amp) - Discussion and Review Thread