LISA III Available for Order - Page 9

Thanks a lot Flashbak, I'm really excited..just two days to have it on my hands..it will blow the Tomahawk.

I was waiting for the Xin Reference but propably I would have waited months to get it (and I don't think it will better the Lisa) so I think I made the right decision!

You did! What a wonderful piece of audio equipment it is! Enjoy it, and make sure to post your impressions.

Hiss Hisss Hisssssss

Hello
Please not that i have previously made it quite clear that LISA is not intended to be used with IEM type Headphones, She instead is intended for Hard to drive full size Headphones like The HD-650's with effortless authority. this is why two 9 volt batteries are used to obtain the required voltage swing, in addition full size headphones like the MDR-CD3000 work quite well with LISA III without Hiss because of the fully discrete high current output stage. Indeed when i say Transportable i assume the user wants to use his full size home Headphones without being attached to a Power umbilical cord.

Some misinformations regarding the gain settings and such need some clarification.

(1) the LISA III with Op- Amps installed is unity gain stable. and therefore requires no circuit modification other than changing one resistor to obtain any gain one desires from unity to AV= 30 (29.5dB) However since the Bass boost requires gain this function will not work with unity gain. A gain of AV=2 is the most desirable low gain setting so as to obtain some bass boost Function.

(2) At no time do i recall telling any one i tested the LISA II with IEM and they were fine. I do not have no do i use these type of Headphones.

(3) If someone is having hiss issues with there LISA III with IEM's i could possibly Arrange for the Gain to be lowered to AV=2 however at your cost and no guarantee this will solve the hiss issue

^You know it does not matter, the customer is right even if they want to drive a car with it.

I can't find it but I thought you had made some stated to this effect a long time ago about low impedance headphones somewhere.

Again i do not Design Amps for the sensibilities of others i Design stuff i personally want and i then have someone make them if others find that what i like, fits there style, then Great! people can have it and quickly, However if this amp is not what you want then it is allot easer for you to buy something else more suitable to your needs than for me to change a splendid design simply to please what people perceive they want. there was a time i did not no would i have ever considered offering my Audio Designs to the Public however im getting soft in my old age. the statements regarding low impedance Headphones refer to Sony, AT and Grado Full size models and these do not hiss with lisa

I agree. The LISA doesn't hiss at all with any of the full size headphones I have, and to use the Lisa with IEM's is a very odd match indeed. With full sized cans, the Lisa delivers the sonic goods like no other battery-powered amp I have ever heard. It really has to be heard to be fully appreciated.

But if you want to use IEMs primarily, I'd advise to buy a RSA Tomahawk or Meier MOVE. I am going to take the LISA on trips, but I won't be using it on the airplane; I will use the Move or TH for that. I WILL use the Lisa on the Hotel though

Folks, let me state it again. My IEM's (E500's and UE Triple -Fi's) have never sounded better then with the Lisa III! So even though it wasn't specifically designed for IEM's they still without doubt will benefit from this wonderful amp! It is highly organic in nature and the realism is just wonderful! Just my two cents. The hiss level with E500's is so far down that the minute the music plays it's no longer detectable (at least to me) , and I detect no hiss whatsoever with the Triple-Fi. I like IEM's and have used them with the Tomahawk/Hornet, Meier Move, and never have they sounded this good to me!

So you have to build another rig - Hotel Rig

It sounds so subtle that unless you are listening to some classical or maybe some very soft Jazz where the smalles light will be heard in a pitch black background it would not be audible.

Shipping was a little slow but I should have mine today and will report back on any hiss and how much with the ES2's. IEM's may be an odd combo given the amps size but it's still very pratical for desktop applications IMO.

Phil - Any word on that bass knob mod?

I am sorry i am at a loss regarding Bass Knob mod please explain?
TIA

You had mentioned that the bass response from the bass knob can be altered to offer a greater bass increase by changing a capacitor. I was wondering if you were able to find out what this would cost and what the turn-around time would be?

I know another Lisa owner who might like this as well. I should have mine today (i hope) so I should know if I want to pursue this by tomorrow.

Ok I just got my Lisa today... my GS1000's came too!

I hope the Lisa arived with the batteries near dead because the GS1000's are distorting and are having some warbling or pitch issues on certain vocals. I'll try some new batteries when I get home... hope my GS1000's are not defective!

As far as the Lisa with the ES2's yes, definitly a hiss or what sounds like air or light wind in the very background. This was not audible with the GS1000's. Synergy with the ES2's is pretty nice... very full sounding and all the notes and instruments seem to be very well articulated. The bass knob does a pretty fine job but I wouldn't mine a littel more Take this with a grain of salt from someone who like the PS-1's with flats. Unfortunatly I think the background noise may just be a bit too distracting for me to use this amp with my E500's but I will do some more testing at home with some fresh batteries. I'm also using a crumby rat shack RCA-mini which I'm sure does not help things.

Hi Phil

I read (and it may not be true) that you are considering selling the pcb for LisaIII at a later date. Is this really a possibility or would I be waiting for nothing? Given a preference, I'd like the enjoyment of a build if possible.

Thanks!

Ok let us know how it went with the E500

I don't have the E500's... customs > universals sorry for the typo

After spending a little more time with Lisa it almost hurts to go back to the Move. Don't get me wrong I still don't think the Move can not be beat at that price but the Lisa really lets you hear what you had no idea was missing in the music. This amp is very impressive! The hiss seems to be less of an issue and is not even audible with the GS1000's or D5000.

If anyone is looking for an amp that can do double duty from desktop to home this is it. I think it would compare very favorably to other desktops like the XP-7 and HR Desktop Portable. I'm a happy camper!