[brospin]

Is the a205A MkII a good option for driving the K1000? Since the Almarro has switchable 8 and 16 Ohm outs, can I connect the 120 Ohm K1000 directly to the speaker binding posts or do I need parallel resistors or even external transformers to match the impedance ?

 

[brospin]

No impressions about the A205?

 

[GarryH]

Brospin,

I've heard that this is a really nice combo. Give a ring to member Jon_L, whom I believe has these two.

Cheers,
Garry

 

[snejk]

A few more answers in a very similar thread as this:
http://www.head-fi.org/forums/f5/almarro-k1000-277133/

 

[JimP]

When I had the K1000s, I ran them off the speaker connectors of the Almarro A205AmkII with excellent results. So good that combo was the end of the road for me (at least for dynamics, yet to try e-stats). Since then, K1000s have gone, and I use the Almarro to drive full speakers.

 

[JimP]

Also you may want to check the high-end forum, seems like a lot of the K1000 owners seem to be posting there.

 

[brospin]

Does anyone have experience using the A205A Mk II with regular phones through the headphone out?

 

[snejk]

If you search here you will find something about that. If I don't remember wrong someone experienced hum with some (low impedance?) phones.

 

[JimP]

Quote:

Originally Posted by brospin /img/forum/go_quote.gif Does anyone have experience using the A205A Mk II with regular phones through the headphone out?

In my system, the only headphones I could use with Almarro was DT880-600ohm (very high impedance), and result was excellent! (with mini to 1/4" adaptor). Even my HD650 which is 300 ohm impedance (ie considered high) resulted in low level hum. I tried various cables and setups to eliminate the hum, but eventually gave up, so Almarro serves duty as speaker amp only.

 

[brospin]

It seems that the A250A is not a good headphone amp and in my case I would in the end use it for the K1000 only. And for that use I also have other contenders, mainly the Sig 30.2. It's not easy to fins a versatile amp that is capable of driving both the K1000 and "regular" phones. The RKVII and the Prehead are the only ones that come to my mind right now.

 

[NoPants]

someone correct me if I'm wrong, but resistors to match loads aren't necessary for an amplifier without an ouptut filter. I thought that resistors in parallel business was reserved for switching amplifiers

 

[brospin]

I have no idea about the use of resistor in series to match impedances, but someone told me about the need to use external resistors if the headphone out of the A250A is used for driving low impedance phones.
Resistors in parallel are often used when power amps are used to drive the K1000. I do so with the TA-10 for the K1000, although I really doubt if this is necessary. Vinnie Rossie told me that no external resistors are needed for driving the K1000 with the Signature 30 (a class D integrated amp).