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ixtx
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Advice on Integrated Amp to pair with Thiel CS 1.6 - May need to return the Arcam A70

So, I think that I just made a stupid (and possibly expensive) mistake. I listened to several integrated amps to pair with Thiel CS 1.6 speakers, but was not terribly excited by any option in my price range (~$1,000). I ended up purchasing the Arcam DiVA A70. After getting home and reading the Arcam handbook, I realized that I cannot pair the Thiels with a subwoofer, because the Arcam can only handle one pair of speakers if they are less than 8 ohms (the Thiels are 4 ohms). I did not realize this at the store (I purchased everything from a well-known and reputable hifi shop), and the salesman neglected to warn me of this incompatibility. The store does not issue refunds for returns, only store credit.

Should the salesman have warned me of this potential incompatibility? I earlier told him that I own a Mirage LF-100 subwoofer, and would probably upgrade in the near future, after assessing whether or not I liked the Mirage in my new system. Even if I ask for store credit, I do not know what to get in the Arcam's place. The store sells brands that make affordable integrated amps (like Creek, NAD, Musical Fidelity, and NAIM) but the shop does not have many on display in my price range. Does anyone have any advice? I could always ask them to order me an integrated amp in my price range, but I do not think purchasing one without auditioning it would be a good idea. Thanks for helping a newbie.

mrlowry
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Re: Advice on Integrated Amp to pair with Thiel CS 1.6 - May nee

Don't Panic! The integrated wouldn't be powering the sub. The sub has it's own amp, which is what what powers the sub. When using speaker level inputs on the sup, the A70 would be sending the audio signal, but the subs amplifier would still be powering the sub. Incidentally, the Arcam A70 and Thiel CS1.6 are a GREAT match.

According to the manual:

"Recommended connection for Stereo applications:
High Level Inputs and High Level Outputs
Located on the rear of your MIRAGE subwoofer are 4 sets of binding posts.
The pair marked Inputs should be connected to the left and right speaker
terminals of your amplifier or receiver. Each pair is color-coded black/red.
These terminals will accept up to 12-gauge quality speaker wire. Remember:
Always connect red-to-red and black-to-black when making connections
between amplifier/receiver to subwoofer. If you inadvertently reverse one
of the connections (i.e., red to black), you will notice a lack of bass from
your subwoofer.
The second pair of high-level terminals are marked High Level Outputs and
can be used to transfer a signal to your speakers. Using speaker wire,
connect the left and right outputs to the rightful speaker inputs. Each pair is
color-coded black/red. These terminals will accept up to 12-gauge quality
speaker wire. Remember: Always connect red-to-red and black-to-black when
making connections between amplifier/receiver to subwoofer. If you
inadvertently reverse one of the connections (i.e., red to black), you will
notice a lack of bass from your subwoofer. See diagram 3."

So you see, it will work. No need to return anything.
If you've lost you copy of it.
http://www.miragespeakers.com/PDFs/current_manuals/LF/LF100/LF100manual.pdf

Enjoy the Arcam and Thiels. You've made good choices in both purchases.

CharlyD
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Re: Advice on Integrated Amp to pair with Thiel CS 1.6 - May nee

Not to worry - Your subwoofer has a built-in amp and will present a very high impedance load (although it's not spec'd, I'm sure it's much higher than 8 ohms) to your Arcam. Wire the sub and your speakers as described in the "High Level Inputs and High Level Outputs" section of your subwoofer manual.

ixtx
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Re: Advice on Integrated Amp to pair with Thiel CS 1.6 - May nee

Thank you both for your responses. This is a relief.

mrlowry
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Joined: May 30 2006 - 1:37pm
Re: Advice on Integrated Amp to pair with Thiel CS 1.6 - May nee

Glad to hear that I've been of assistance.

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