First check whether an amplifier is suitable for this. Not every amplifier has speakers - = ground. You can easily blow up your amp and headphones with it.I have to make a 6.3 mm adapter for the he-6 to connect to the speaker output. Minus between L+R is connected, right?
Thanks.they are saying 330w at 8/4 ohm BTL... perhaps half that for real world power
maybe 170-200w real world?
Here is test by Amirm (not so good):
SMSL A300 Stereo Amplifier Review
This is a review and detailed measurements of the SMSL A300 stereo class D amplifier. It is on kind loan from a member and costs US $196. The A300 is slick looking with flush volume control and switches. Alas, I am not a fan of the blue LED display from aesthetic point of view. It is nice...www.audiosciencereview.com
The A300 probably uses the same chip as the AO200 and AO100. It is one of the most widely used Bluetooth chips for audio devices (BT headphones, speakers, MP3 mini boards, etc.).Does anyone know which DAC is installed?
Toku, I can see how this method works as well, but I am not generally experiencing the issues you mention using the BTL from master to the input of L amp. As long as 1) the units balance is calibrated initially, and 2) subsequent use of the remote is able to control both volumes. There was one time when I was so far or mis pointed with the remote, that the remote only affected one volume, and I had to reset the balance, but with pointing of the remote so it will be in the direction of both amp front panels, I can maintain balance. The #'s are all over the place, and I am looking for some dimming solution. It would be nice to see a schematic to determine if the BTL on the main is simply an extension of the R input on main or if something else is going on.I tried a master-slave connection, but it is difficult to control the volume. The interlocking operation is strange and I can't understand it well. I feel that the sound quality is not good either.
After all, I stopped the master-slave method that uses the BTL-R output and used the two A300s as independent BTL operations.
procedure
1. Turn off the power switch on the back of the two A300s.
Disconnect the BTL-R connection cable. There is no change in the speaker connection. Is the same.
2. Connect the R-ch of the audio output cable from the DAC etc. to the L-ch of IN1 of the first A300, and connect the L-ch to the L-ch of IN1 of the second A300.
If there are other connected devices, connect them to IN2 L-ch in the same way.
3. Turn on the power of the two A300s.
4. Set the amplifier operation to br1 in BTL mode.
5. Set the input mode to IN1.
6. Set the volume to the same level for both units. Subsequent adjustments are operated with the remote control.
The response of the remote control is good, and the volume of the two A300s and the items in the MENU work smoothly in tandem. It is very comfortable to be able to set two A300s at the same time with one remote control operation. Of course, the power can be turned on and off at the same time with the remote control.
Of course, BT and USB cannot be used in BTL mode.
So, the question which others have asked and remains to be answered is, if not the A300, then what? What other option(s) would the pundits here recommend in place of the A300, preferably an option that (a) includes a SW OUT, and (b) has a decent USB IN? Inquiring minds (who don't have the deepest pockets) want to know!Here is test by Amirm (not so good):
SMSL A300 Stereo Amplifier Review
This is a review and detailed measurements of the SMSL A300 stereo class D amplifier. It is on kind loan from a member and costs US $196. The A300 is slick looking with flush volume control and switches. Alas, I am not a fan of the blue LED display from aesthetic point of view. It is nice...www.audiosciencereview.com
SMSL AL200So, the question which others have asked and remains to be answered is, if not the A300, then what? What other option(s) would the pundits here recommend in place of the A300, preferably an option that (a) includes a SW OUT, and (b) has a decent USB IN? Inquiring minds (who don't have the deepest pockets) want to know!
Specs are valid, but so are your ears. If it sounds good to you(like it does to me) then that's really all that counts, IMO.Many people praise the A300, it has good reviews. People never complained about sound quality. But now that Amir measured it suddenly it does not sound good anymore? What does it mean? Measurements don't tell the whole truth? Or people cannot "hear" distortion beyond certain level? It sounds very good to me. What do you think?
"The V3"? Are you referring to the Fosi Audio V3? Sorry, but I don't know exactly which amp you're referring to.i have owned and still owned amps that I know will measure like shit.
eg. I used to own an NAD 3020. You know what this is. You know its going to fail on every objective measure.
I have a Parasound multichannel which is of the same vintage as an Adcom 555 or a Sunfire Cinema Grand or any of these kind of vintage 25yr old battleships.
These do measure poorly. Hell even current Parasound THX amps dont measure that well. And yet my Parasound is one of the best amps I've ever owned.
And so the A300 is sort of in that category. Its it the best? I think the V3 will better it. And that's probably what you should buy. Or wait until October for the V3 2.0 - so my advice would be to hold onto your dollars right now.
I also have a Marantz receiver that I think sounds better than the A300 but I think that'll measure quite poorly too even though its made in japan and has all the silly stuff like copper screws and copper chassis.
Yes."The V3"? Are you referring to the Fosi Audio V3? Sorry, but I don't know exactly which amp you're referring to.
SMSL AL200