EpicPie
500+ Head-Fier
- Joined
- Jan 15, 2011
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Haven't had time until now to post up this long awaited review as I was waiting for a replacement knob for the amp from Jaben so I could take pictures before posting this review. Hope you guise here on Head-Fi enjoy reading it. 
What's Included With The Amp:
Velour carrying bag, 5.5" M/M 3.5MM cable with a 90' degree bend on one end(not shown), and the amp it's self.
(Click the image for a larger resolution)
Specs:
Headphone impedance range:32~300Ω
Frequency Range:10Hz~100KHz(ą1dB)
Dimensions:86x46x20mm
Weight:70g (Without Batteries), 112g (non-Alkaline AAA batteries), 116g (Alkaline AAA batteries).
Max Output: 150mW
Runtime: 160Hrs (x4 AAA batteries)
Signal-to-Noise Ratio: +A 102dB
Build Quality:
The build quality Ive seen on all the Jaben GoVibe amp's I currently own are absolutely outstanding. The housing components are all custom machined pieces of aluminium. Nothing about any of their amplifiers feel cheaply made to me. Only flaws to the product is that the paint will wear off from normal wear and tear if it gets scratched by something. It should be a bit expected though.
Front IO:
The front IO has your On/Off switch, headphone out, source in, and your volume knob.
(Click the image for a larger resolution)
Powering The Unit:
Powering the amp requires x4 AAA batteries as stated in the specs. Be sure to have a pair of pliers on hand to tighten or loosen the battery compartment back plate. It's a tad difficult to get the back plate back on once you put some batteries in.
(Click the image for a larger resolution)
Sound Quality:
The output of this amp gives off a well balanced boost to the bass, midrange, and treble to your headphones. With headphones, I noticed the bass to be a lot tighter and controlled, the midrange and treble was brighter and more articulate as to sounding flatter and a bit congested compared to a unamplified source. More details stand out in vocals and bass as well as the instrumental separation being much more noticeable. Soundstage sounds slightly larger through this amp.
With the volume dial on the amp turned up all the way, sound doesn't distort for when you want to blast music through your cans for yourself or other people to hear. That's a huge plus.
Worth noting: When using earbuds and IEM's the bass was a bit distorted and there is channel imbalance when the volume dial is turned the just above it's lowest volume level, anything above that doesn't have channel imbalance.
Other notes: I haven't used the original Martini amp to know if there is anything significantly different between the + and the original besides aesthetics.
(Click the image for a larger resolution)
Setup shown in above picture: Samsung Admire > GoVibe Martini+ > Ultrasone DJ1's.
Conclusion:
Incredibly capable amp for powering any type of headphone, earbud, or IEM that runs 300Ω or lower. With being so comfortably portable, don't let it's size fool you. With the incredible build quality, sound, and amping it provides I can't go anywhere without it.
As for pricing and purchasing the amp, I'm unsure on pricing as I can't find the Martini+ individually for sale on the Jaben website. Though I'm sure if anyone were to PM a Jaben rep on the site to purchase one, it would be possible.
Buy Jaben products here:
http://jaben.net/shopping2/home.php
- EpicPie
What's Included With The Amp:
Velour carrying bag, 5.5" M/M 3.5MM cable with a 90' degree bend on one end(not shown), and the amp it's self.
(Click the image for a larger resolution)
Specs:
Headphone impedance range:32~300Ω
Frequency Range:10Hz~100KHz(ą1dB)
Dimensions:86x46x20mm
Weight:70g (Without Batteries), 112g (non-Alkaline AAA batteries), 116g (Alkaline AAA batteries).
Max Output: 150mW
Runtime: 160Hrs (x4 AAA batteries)
Signal-to-Noise Ratio: +A 102dB
Build Quality:
The build quality Ive seen on all the Jaben GoVibe amp's I currently own are absolutely outstanding. The housing components are all custom machined pieces of aluminium. Nothing about any of their amplifiers feel cheaply made to me. Only flaws to the product is that the paint will wear off from normal wear and tear if it gets scratched by something. It should be a bit expected though.
Front IO:
The front IO has your On/Off switch, headphone out, source in, and your volume knob.
(Click the image for a larger resolution)
Powering The Unit:
Powering the amp requires x4 AAA batteries as stated in the specs. Be sure to have a pair of pliers on hand to tighten or loosen the battery compartment back plate. It's a tad difficult to get the back plate back on once you put some batteries in.
(Click the image for a larger resolution)
Sound Quality:
The output of this amp gives off a well balanced boost to the bass, midrange, and treble to your headphones. With headphones, I noticed the bass to be a lot tighter and controlled, the midrange and treble was brighter and more articulate as to sounding flatter and a bit congested compared to a unamplified source. More details stand out in vocals and bass as well as the instrumental separation being much more noticeable. Soundstage sounds slightly larger through this amp.
With the volume dial on the amp turned up all the way, sound doesn't distort for when you want to blast music through your cans for yourself or other people to hear. That's a huge plus.
Worth noting: When using earbuds and IEM's the bass was a bit distorted and there is channel imbalance when the volume dial is turned the just above it's lowest volume level, anything above that doesn't have channel imbalance.
Other notes: I haven't used the original Martini amp to know if there is anything significantly different between the + and the original besides aesthetics.
(Click the image for a larger resolution)
Setup shown in above picture: Samsung Admire > GoVibe Martini+ > Ultrasone DJ1's.
Conclusion:
Incredibly capable amp for powering any type of headphone, earbud, or IEM that runs 300Ω or lower. With being so comfortably portable, don't let it's size fool you. With the incredible build quality, sound, and amping it provides I can't go anywhere without it.
As for pricing and purchasing the amp, I'm unsure on pricing as I can't find the Martini+ individually for sale on the Jaben website. Though I'm sure if anyone were to PM a Jaben rep on the site to purchase one, it would be possible.
Buy Jaben products here:
http://jaben.net/shopping2/home.php
- EpicPie
