“Old School” Bully (Pair)
$5,880.00 – $6,955.00
The price is per pair.
Important notice for international customers: See here
Fully assembled and ready to rumble, The Brute’s “big brother” is even bigger, badder and he’s not holding back!
The Bully brings both high efficiency and a 12″ servo subwoofers to the fight, offering detailed and impactful bass with extension flat to 20Hz
This make them easy to drive even with low-powered tube amplifiers, plus the Subwoofer’s PEQ function and extension filters give you full control over the bass response.
Frequency range: 20Hz-17KHz with subs. (200Hz-17KHz MTM section only)
Efficiency: 94dB @ 1W/1M
Impedance: 6 ohms (4.5 ohm minimum)
Height: 33″ 5/8
Depth: 14″
Width: 14″
Subwoofer Jumpers: Includes an extra set of tube connectors, and small jumper wires to connect to the sub’s high-level inputs. (See pictures)
All finished speakers are made to order, expect up to 3-5 weeks for assembly.
Custom order refund policy
Want something custom?
Contact Killian at dentonwoodworkers@gmail.com
The next step in our "Old School" series speakers, the Bully is bigger in every way, offering an "Old school" look but with a well-braced cabinet and high quality components through out.
The treble and mid range are handled by the same drivers as our X-CS Bravo kit, offering excellent clarity and off-axis performance, with a 94dB sensitivity and 6 ohm impedance, making them very easy to drive. The bottom woofer is the same as our sealed servo sub kits, using a 12" servo-controlled subwoofer, offering bass extension flat to 20Hz. It is controlled by the Rythmik A370 PEQ amplifier, offering full control over the bottom end.
We recommend keeping the Tweeter & Mid Woofers on the "inside" when placing them in your room for better center imaging and depth..
We also offer 20" Classic stands for this model.
Additional information
| Weight | 125 lbs |
|---|---|
| Dimensions | 36 × 18 × 18 in |
| Subwoofer Jumpers | Do not include, Include +$75 |
| Finish | Black Duratex, Veneer $700 |
| Veneer | Duratex, Cherry, Mahogany, Maple, Oak, Walnut |
1 review for “Old School” Bully (Pair)
Lino Gonzalez –
This is a review of the GR Research speaker “The Bully.” I will try to capture both the buying experience and the musical performance of these speakers.
I opted to purchase these speakers fully assembled. The January 2025 lowest list price for a fully assembled set without subwoofer jumpers and a black Duratek finish was $5165.00. I wanted to wait for my tax refund amount before placing my order. By mid-February, the same speaker options had ballooned to $5880.00. I ordered the all-Duratek finish with the subwoofer jumpers for $5955.00, plus I also ordered the speaker stands with the same finish for $475.00, for $6791.32, with FedEx ground shipping.
The promised lead time was five to six weeks. I placed my order on March 16, 2025, and the speakers were delivered on May 12, 2025, or a little over eight weeks later.
FedEx delivered four boxes. The first two were the stands; they arrived a few days before the speakers. The Bully arrived in two large cardboard boxes; neither box had any markings. I carefully unpacked the first speaker; I could tell by the plate amp that the speaker was right-side up. That speaker was undamaged. Upon unpacking the second speaker, I realized it was upside-down. That speaker had one of the small 5.25″ M130 Woofers damaged.
The Bully speakers are extremely heavy; in my opinion, the packing of the Bully is the weakest link in the buying process. There was no molded Styrofoam or foam to protect the speakers. The speakers were packed with a bunch of unmolded Styrofoam surrounding the speaker in the box. Also, the strength of the boxes is inadequate for the size and weight of these speakers. There is no way I could repackage these speakers in the shipped boxes/material, so I just threw them out. I have had large, heavy speakers before, i.e., Egglestonworks Andra II Speakers (more on these later) and Viking Acoustics Berlin R Mk-II; they all had some combination of a wood-frame and heavy-duty cardboard and foam inserts to protect the speakers.
Thank you for that feedback. I would like to comment on that. You are correct about the packing. While the company making these may have thought that the blown in foam was a good idea, the weight of the Bully’s beat that foam up in shipping and turned it to dust. They are now using thick blocks of solid foam on each end and only using the spray in foam as a filler.
Danny Richie
GR Research has top-notch customer service—as good as it gets, in my opinion. I called GR Research, and they promptly promised to send a replacement woofer.
This is where my saga begins. Before I ordered the Bully speakers, I had initially contacted Danny Richie to ask him some questions about his design.
The Bully has its plate amp to power the 12″ servo subwoofers, and the rated efficiency of the Bully is 94dB at 1W/1M.
I have a Parasound JC5 stereo amplifier rated at 400 watts per channel at eight ohms. How much power can it handle before damage? His response was, “We have never seen a power-related failure.”
On the second night, I was playing the Bully speakers and heard things I hadn’t heard in decades. I love loud rock-and-roll, and the Bully speakers delivered the goods with authority and fidelity. They are simply outstanding. However, at one point, the speakers went dark during some song, which I don’t remember. The sparkle was gone. Something changed, something broke. I am guessing the tweeters. I bought these speakers on the premise that I would never have to be afraid of damaging them, but here I am. Ah, they sounded so good.
Danny Richie’s response was: “Two tweeters going out at once is highly unlikely unless there is something wrong with your amplifier.” This is not the case. I purchased two new tweeters for $96.82. When I returned the broken tweeters, GR Research refunded the cost of the tweeters.
Another note here. We received your damaged tweeters. The voice coils looks fine and showed no signs or being over powered. We have had no other power related issues with them and we have them in over 8,000 speakers currently. So your amp must have sent them an odd spike for it to have taken both of them out at the same time.
Danny Richie
The Parasound JC5 amplifier has a Gain-control adjustment; I reduced the gain in half, effectively limiting the maximum output power to the Bully.
These Bully speakers are great rock-n-roll speakers. The bass is outstanding, and the mid-band and tweeters sing, sing, sing!
I’m not a reviewer, so I don’t typically understand all the reviewer jargon, or do I care? Does it sound good? Does it make me smile? Do I hear things in a song I’ve never heard before? In the unbridled power listening session that resulted in blown tweeters, I can attest, “Yes, sir!”
For a point of reference, I had the Egglestonworks Andra II Speakers powered by LAMM M1.1 for over thirteen years. The Andra II is even bigger and heavier than the Bully speakers. The M1.1 is a 100-watt class A amplifier, with a very sophisticated output stage, that would immediately reset if the music called for power exceeding its 100-watt output. Needless to say, I tripped that protection circuit often. However, the combination of the Andra II and the M1.1 was the best-sounding playback system I’d ever heard. I no longer have either of them. The reason is a long story for another day. The Bully/Parasound JC5 combo produces a much better bass response, and my enjoyment of playing loud Rock-n-Roll is back in a big way!
Overall, with the highs and lows of the Bully purchase experience, I’m thrilled with the purchase, and I highly recommend getting them if you want to Rock out!