Jump to content

New amp from RSA...


Bob_McBob
 Share

Recommended Posts

  • Replies 70
  • Created
  • Last Reply

Top Posters In This Topic

There isn't much circuitry he could possibly cut out of the Hornet, as there is hardly anything there in the first place, so we can assume this is just a repackaged Hornet, AD8397 etc. and a few cheaper components and much lower voltage?

So, in other words this thing is like a Total Airhead except it has no crossfeed and runs at a much lower voltage off batteries, and will cost more? Way to go Ray! And those cases look very cute in pictures, but I really don't see how practical they are in their intended portable use with edges sticking out and protruding volume controls to get knocked about...

Link to comment
Share on other sites

Nope, not an ad8397 as that can't run on 3 volts.

My crystal ball is warmed up, so i predict the following

Just about has to be this chip

http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3459

Will know once i see pictures of the board.

Which i will see sooner rather than later :D

No rail splitter necessary.

No honking big cap either.

Total cost to build $30

Initial introductory price $199

Thereafter $250

Link to comment
Share on other sites

I heard it at the last so cal meet. I thought it sounded OK for a small portable amp.

dsc_0030.jpg

Can someone tell me what's up with the Tomahawk's jacks? Rubber rings and weirdly bent somewhat circular brass looking things. I really don?t like the gold color of the Toma's volume knob, it looks pretty ghetto.

Link to comment
Share on other sites

i can imagine an awful lot of resolution. it's a cute amp, though. btw, is romanee being paid for his ad copy, or is it pro bono?

I want to see romanee's ad (can't find it; must look harder). Do you think this product announcement was a premature calculation by Ray to put the focus back on him and his products? Because it doesn't seems like he isn't getting the same level and type of attention he's use to receiving.

Link to comment
Share on other sites

From a lousy picture i was just shown it certainly looks like one big electrolytic

(evidently ray's trademark) even though AA batteries really don't need it

and one 8 pin soic package. So its not the maxim part, but it certainly could

be the boomer part, or an ad8617 if he uses the split between the batteries

as ground. The input and output jacks are the same kind of jacks that i have

on a couple of my video cameras. They do seem to work, but boy are they

cheap. So i'll downgrade my parts cost to $25 :D

Evidently ray is trying very hard to keep decent pictures of the board from

ever showing up.

I guess i don't even understand why he is making such a product. Its probably

identical to the chips already in many of the ipod and ipod like devices, whats

the benefit??

Link to comment
Share on other sites

For IEM"S is rite on the money, god my Sensa's and this amp were amazing together..really nice combo.

seen this amp a few times with out the case, this is the first I seen with the case..

looks so small next to the Hornet, wander how small next to the sr-71.

oh well I am sure to know in a few weeks.

Link to comment
Share on other sites

Filbert at that other forum has said this (probably soon to be deleted)

I'm not trying to troll you guys or make your lives difficult or whatnot. When I comment on something, it is in an effort to be helpful to the person I'm responding to. My comment was out of a genuine interest and concern. The current a portable amplifier outputs is going to come from the batteries, and the batteries are limited in capacity. In order to achieve a desired battery life, your current draw is going to have to be sufficiently low. You have to take into account not only the quiescent draw of the amplifier circuitry, but the draw of the headphones as well. As a result, based on the duration quoted here, it seems that it would have to drive your IEMs on a couple or few mA of current (depending on battery capacity), which is probably doable, but then there's a question of why you need an amplifier in the first place since many devices' internal amps will already source and sink that much current with pretty decent linearity and they're designed to handle the sort of load a headphone brings, whereas many micropower op-amps aren't (and even fewer could do so reasonably well). In order to get the equation above that level, it would take AAAs of a capacity I've at least never seen before or seen anything even close, but I'm not ruling out the possibility. I mention micropower op-amps as they're about the only thing that will get this low a quiescent current at this voltage, as well as the use of some of them might help explain artears' comment. I considered the use of micropower op-amps in some of the circuits I built over the summer, so I'm not unfamiliar with them. Thus, to me at least, it seemed as though my comments were reasonable. I would have made them irrespective of who made the amplifier. People who talk to me regularly I imagine will tell you I discuss the designs of a variety of devices, not just Ray's.

I have to agree 100%. Many of the ipod and ipod like things i have checked into in the last few hours have at a minimum 4.8 volt batteries, most have 6

volt batteries, and i even found one with a 7.2 volt battery. All of these devices are going to be able to drive headphones better than something that

runs on 3 volts.

Link to comment
Share on other sites

Filbert at that other forum has said this (probably soon to be deleted)

I'm not trying to troll you guys or make your lives difficult or whatnot. When I comment on something, it is in an effort to be helpful to the person I'm responding to. My comment was out of a genuine interest and concern. The current a portable amplifier outputs is going to come from the batteries, and the batteries are limited in capacity. In order to achieve a desired battery life, your current draw is going to have to be sufficiently low. You have to take into account not only the quiescent draw of the amplifier circuitry, but the draw of the headphones as well. As a result, based on the duration quoted here, it seems that it would have to drive your IEMs on a couple or few mA of current (depending on battery capacity), which is probably doable, but then there's a question of why you need an amplifier in the first place since many devices' internal amps will already source and sink that much current with pretty decent linearity and they're designed to handle the sort of load a headphone brings, whereas many micropower op-amps aren't (and even fewer could do so reasonably well). In order to get the equation above that level, it would take AAAs of a capacity I've at least never seen before or seen anything even close, but I'm not ruling out the possibility. I mention micropower op-amps as they're about the only thing that will get this low a quiescent current at this voltage, as well as the use of some of them might help explain artears' comment. I considered the use of micropower op-amps in some of the circuits I built over the summer, so I'm not unfamiliar with them. Thus, to me at least, it seemed as though my comments were reasonable. I would have made them irrespective of who made the amplifier. People who talk to me regularly I imagine will tell you I discuss the designs of a variety of devices, not just Ray's.

I have to agree 100%. Many of the ipod and ipod like things i have checked into in the last few hours have at a minimum 4.8 volt batteries, most have 6

volt batteries, and i even found one with a 7.2 volt battery. All of these devices are going to be able to drive headphones better than something that

runs on 3 volts.

wow, i read immtbiker original post, and he is a fucking idiot. instead of doing his math, he decided to flame filburt, lol.
Link to comment
Share on other sites

I have to agree 100%. Many of the ipod and ipod like things i have checked into in the last few hours have at a minimum 4.8 volt batteries, most have 6

volt batteries, and i even found one with a 7.2 volt battery. All of these devices are going to be able to drive headphones better than something that

runs on 3 volts.

Aren't iPod's 3.7V? Though even that is higher than the 3V max of 2AAA's. Unfortunately Ray is going to sell a lot of these.

Link to comment
Share on other sites

wow, i read immtbiker original post, and he is a fucking idiot. instead of doing his math, he decided to flame filburt, lol.

I'm a fucking idiot? Glad you you let me know...all this time I thought I had some semblance of intelligence. Math was my best subject in military school.

Perhaps we need to meet one day to discuss this in person.

Link to comment
Share on other sites

For IEM"S is rite on the money, god my Sensa's and this amp were amazing together..really nice combo.

seen this amp a few times with out the case, this is the first I seen with the case..

looks so small next to the Hornet, wander how small next to the sr-71.

oh well I am sure to know in a few weeks.

let us know how it stacks up against the hornet.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share


×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.